<<

Table of Contents

List of Illustrations 2

Introduction 4

Chapter 1: Attitudes to Conservation in 6

1.1 - History of Conservation in 6

1.2 - Belgian Conservation Legislation 8

1.3 - ‘Brusselisation’ 9

Chapter 2: The Sociocultural Value of 10

2.1 - Historical Value 10

2.2 - Cultural and Symbolic Value 12

2.3 - Aesthetic Value 14

Chapter 3: Economic Value of the Conservation of Art Nouveau 16

3.1 - The Cost of Conservation of a Horta Property 16

3.2 - Economic Value of a Restored House 19

Conclusions 20

Glossary of Terms 22

Appendix 23

Horta’s Most Influential Works 23

An Insight into Horta - Interview with Françoise Aubry 25

Bibliography 27

1

List of Illustrations

Figure 1. Hôtel Tassel - Entrance Hall

[Photograph] by: Jean and Rene Delhaye. Taken from: Horta the Ultimate Art Nouveau Architect (Aubry, et al., 2005)

Figure 2. Hôtel Tassel – Front Façade

[Photograph] by: Arco Ardon. Taken from: Flickr.com – Arco Ardon -Brussels (2009)

Figure 3. Palais Stoclet

[Photograph] by: Jean-Pol Grandmont. Taken from: Hoffmann, Brussels (2005)

Figure 4. Brussels Skyline – Haphazard Placement of High Rise Buildings

[Photograph] by: Erasmushogeschool. Taken from: Flickr.com – Skyline Brussels (2009)

Figure 5a. Maison de Peuple

[Photograph] by: Moicani. Taken from: moicani.over-blog.com (2013)

Figure 5b. The Sablon Tower

[Photograph] by: Knight Frank. Taken from: Knightfrank.co.uk (Unknown)

Figure 6. Hôtel Tassel - Capital of an iron 'tree' column

[Photograph] by: Jean and Rene Delhaye. Taken from: Horta the Ultimate Art Nouveau Architect (Aubry, et al., 2005)

Figure 7. Barcelona Pavilion Structure

[Photograph] by: Claudio Divizia. Taken from: Greatbuildings.com (2013)

Figure 8. Alphonse Mucha – Unknown Print

[Print] by: Alphonse Mucha. Photograph Taken from: Flickr.com – Damyan Artist (2008)

Figure 9. Hokusai – The Great Wave off Kanagawa (1833)

[Woodblock Print] by Katsushisa Hokusai. Photograph Taken from: The Spaulding Collection, Museum of Fine Arts, Boston (Unknown)

2

Figure 10. Hôtel Solvay –Door Handle Detail

[Photograph] by: Pierre d’Otreppe. Taken from: Living the Solvay House (Oostens-Wittamer, 1982)

Figure 11. Hôtel Solvay – Entrance Hall

[Photograph] by: Pierre d’Otreppe. Taken from: Living the Solvay House (Oostens-Wittamer, 1982)

Figure 12. Hôtel Solvay – Front Façade

[Photograph] by: Unknown. Taken from: Travel-pictures-gallery.com (Unknown)

Figure 13. Hôtel Solvay – Stained Glass Light Well

[Photograph] by: Choux de Bruxelles. Taken from: Choux de Bruxelles (2014)

Figure 14. Table showing an Annual Comparison of Property Prices in the Brussels Capitals Region

[Table] Produced by: Stephan Moens. Taken from: Statistics Belgium (2014)

Figure 15. Hôtel Max Hallet – Restored Interior

[Photograph] by: Bruxelles5 Photography. Taken from photos.bruxelles5.info/maxhallet/ (2011)

Figure 16. Maison et Atelier Horta ()- Staircase, Interior Details and Bespoke Furniture

[Photograph] by: Bruxelles5 Photography. Taken from: photos.bruxelles5.info/Horta/ (2009)

Figure 17. Magasins Waucquez – Interior View

[Photograph] by: Christine Bastin and Jacques Evrard. Taken from: patatheatre,

wordpress.com (2012)

3

Introduction

Brussels, the capital of Belgium, is a melting pot of Germanic, Flemish and French cultural influences and these-days is known primarily for its chocolate, waffles, french-fries, mussels and beer! Recently it has become recognised as the centre of European power and a modern concrete metropolis. However, at the turn of the 20th century this somewhat unpopular and bureaucratic perception could not have been further from the truth. The city’s “wide boulevards, elegant shops and extensive parks” (Sembach, 1991, p. 41) accentuated the fact that Belgium was a relatively young and fashionable country, very keen to impress. The increasingly liberal became the epicentre of one of Europe’s most extreme artistic movements: art nouveau.

Art nouveau flourished in Belgium for several reasons. Belgium became more outward looking, by colonising the Congo and by opening its borders to foreign influences, especially to that of Japan. As a result the wealthy wanted to be seen embracing ‘Japonism’ and artists assimilated a range of new techniques into their arsenals. Japanese art also had a penchant for natural form, something that was fast becoming desired in the industrialised city centres. Belgium had become only the second country, after the United Kingdom, in which the industrial revolution took place. Whilst artists were against mass production and machines and were turning to a more oriental, organic and bespoke art form, industry would eventually and paradoxically become one with art nouveau because of the opportunities new technologies and materials provided. Belgian and Parisian artists were at the forefront of the avant-garde and looking for a way to greet the new century. Above all, art nouveau was conceived in defiance of the stagnating historicist architecture rife throughout Europe at the time.

Art nouveau spanned the entire artistic spectrum, but was particularly prevalent in architecture, graphics, decorative arts, furniture design, fashion and textiles. It has several immediately identifiable characteristics, most of all the ‘whiplash’ curve; a meandering, even serpentine response to natural vegetative and feminine geometry. The overall aesthetic has subtle arabesque and oriental hints (Fig.1). In architecture, its biggest development was the artistic expression of necessary structure and the use of new materials. Art nouveau made a disproportionately large impact in a very short time and the advances achieved through it paved the way for other far more recognised movements, in particular and . Figure 1. Hôtel Tassel - Entrance Hall

4

Although the origin of art nouveau is disputed, Hôtel Tassel (Fig.1&2) in Brussels, designed by and completed 1893, is credited as the point at which “art nouveau first assumed a clearly defined form and … developed three-dimensionally” (Schmutzler, 1964, p. 125). As a result, Horta’s name has become synonymous with art nouveau and his style has become regarded as the quintessential version of the movement. Horta’s works are all examples of Gesamtkunstwerke (see glossary) and his meticulous attention to detail can be seen throughout his designs in bespoke furniture or even in the detail on, for example, radiators or door handles. His designs pushed industrial materials so that they were utilised in an artistic way, in primarily residential functions. Now that the value of art nouveau has been realised, his designs are becoming increasingly sought after. Whilst this Figure 2. Hôtel Tassel - Front Facade dissertation focuses on the conservation of Horta’s work, it is not an exhaustive analysis of art nouveau architecture, in which several other artist, such as Alphonse Mucha, and Antoni Gaudí feature prominently.

The other end of the art nouveau window in Brussels was marked by Josef Hoffman’s Palais Stoclet (completed in 1911), a building that straddled art nouveau and art deco (Fig.3). There, as in the rest of Europe, Adolf Loos’s ‘Ornament and Crime’ which Figure 3. Palais Stoclet advocated “removal of ornament from objects of daily use” (Loos, 1908) and the breakout of the First World War in 1914, heralded the end of the art nouveau period.

Art nouveau has become an integral part of Belgium’s national identity, and growing international admiration for it as a collectable, visually pleasing and luxury artefact, has caused its burgeoning antique value. As a result, examples of art nouveau are sold for considerable sums of money. Because of the necessarily public nature of art nouveau architecture, in Brussels, Horta’s buildings have both financial value and considerable non-financial value. This essay aims to judge whether or not Horta’s work in Brussels is worth conserving; how architectural value is defined; and also the importance of quantifying Horta’s work, both in financial terms and in breadth of societal impact in Brussels, where, ironically, his work has not always been held in such high esteem as it is now.

5

Chapter 1: Attitudes to Conservation in Brussels

1.1 - History of Conservation in Belgium Architectural conservation has long been linked with national pride and history. However, in Belgium “debates about the relative merits of restoration and conservation have continued … for over 150 years” (Stubbs & Makaš, 2011, p. 113). Belgium endured occupation in both world wars. As a result, its patrimoine (heritage) suffered both extensive allied bombing and the familiar looting when German soldiers fled during the liberation. However, it was these series of unfortunate events that provided a need for, and a rekindled interest in, conservation and preservation of heritage and the nation’s past. Modern Belgian attitudes on conservation were perhaps defined and inspired by the work of three theoreticians in the mid-19th Century: Eugène Viollet-le-Duc, John Ruskin and .

Viollet-le-Duc was a French architect and architectural philosopher who championed ‘stylistic restoration’ a “romantic appreciation of historic monuments” (Jokilehto, 1999, p. 137). However, he was also a scholar and took a very academic approach, requiring the study of historical aspects of buildings, analysing and documenting them. Yet when it came to the physical process of restoration, buildings were often torn down and rebuilt in an exaggerated manner. His views were predominantly adopted in the mid 1800’s, in a time of national self-confidence and pride. Incidentally, Viollet-le-Duc inspired Horta greatly, and it is noteworthy that “Viollet-le-Duc also railed against tyranny of symmetry” (Aubry, et al., 2005, p. 142), believing that that it hindered creative freedom. Whilst he was a visionary and advocated for technology and the qualities of the scholar and artist to combine, it was Horta who actually achieved this, and marked the birth of art nouveau with the design and completion of the Hôtel Tassel.

John Ruskin was an English art critic and theorist most famous for being a part of the Pre-Raphaelite Brotherhood. Having lead the gothic revival and through his criticisms of art that was not classical, he promoted the association between nature and art, an important precedent for art nouveau. In terms of conservation, Ruskin’s approach was very different to Viollet-le-Duc’s. Ruskin held a “passion for preservation and careful maintenance of historic buildings” (Stubbs, 2009, p. 115) where preceding ideas required dismantling or destroying buildings and rebuilding them unsympathetically, with little of the original building’s fabric.

Charles Buls was perhaps the most influential in shaping Belgian attitudes to conservation and he was very well placed and qualified to do so as the Mayor of Brussels, scholar of the arts and as a restoration expert. His vision was to unify Viollet-le-Duc’s and Ruskin’s principles, encouraging “scholastic examination of historic structures … and minimal physical intervention” (Stubbs, 2009, p. 115). Into this, Buls tried to weave in a fellow Belgian contemporary’s work. Louis Cloquet devised a classification 6 system to help identify what procedure a building should undergo, by determining if a building is ‘living’ or ‘dead’. ‘Living’ buildings, he said, have a current use and should therefore be restored, while ‘dead’ buildings have historic value and should be preserved.

These attitudes together form a coherent response to the issue of conservation. However, it proved difficult to apply the theory to real world situations. “The outer splendour could not hide the inner division of the country” (Sembach, 1991, p. 41), leading to excessive bureaucracy and indecision, which, some would say, persist to this day. Even the subsequent introduction of heritage and conservation legislation has still not addressed these issues.

7

1.2 - Belgian Conservation Legislation Belgian attitudes were, in reality, shaped by legislation. Having gained independence only five years earlier, King Leopold I established the ‘Royal Commission on Monuments’ in 1835. This pertained only to antiques and art, but was expanded to include landscapes and historic sites in 1918. The Legislation was amended again in 1931, broadening the scope of patrimoine, and allowing for protection of monuments with the full power of the law. In the 1960’s and then in 1970, when the constitution was adjusted, the Flemish, Walloon and German communities were given increased regional autonomy including control over heritage legislation. This proved to be a massive issue in Brussels especially, where Flemish and Walloon communities overlap. Due to the ambiguity of the situation, by 1972 only 2,500 sites in Belgium were protected to the full extent available under the law. Finally, following the ‘Town Planning Act’ 1991 and the ‘Heritage Conservation Act’ 1993, the Brussels region created a list of protected buildings, albeit with limited success. By 2004, “less than 10% of the Brussels territory is covered by an inventory, and we pay private art historians to pursue the task” (Loits, 2004). By 2011, there were still only 700 sites listed in Brussels. There is also the added complication of the Belgian constitution contradicting both the ‘Heritage and Conservation Act’ and the ‘Town Planning Act’. The constitution stipulates that a landowner has control over his property, while the later legislation contests this and gives the government additional powers. In several cases, this has led to complicated, long and expensive legal battles surrounding restoration, renovation and even the destruction of historic buildings.

Figure 4. Brussels Skyline – Haphazard Placement of High Rise Buildings

8

1.3 - ‘Brusselisation’ In the lead up to the 1958 Brussels World Fair and the construction of the European Quarter in 1959, and for some time afterwards, Brussels underwent a transformation, eclipsing even the post-war reformation and planning. However, as an aging city with inadequate infrastructure and insufficient housing, hemmed in by protected forests and land, Brussels was already exceeding its capacity to support the growing population. Therefore, to keep pace, Brussels had to look inwards. Under the guise of modernisation, gentrification and looking to the future, whole streets, neighbourhoods and even communities were levelled to provide for new boulevards, underground ring roads and intrusive office blocks. The neologism ‘Brusselisation’, sums up the brutalisation and the callous disregard in which hundreds of buildings were bulldozed. Historic buildings were torn down as their value had not been fully realised. After all, “No society makes an effort to conserve what it does not value” (The Getty Conservation Institiute, 2002). The Brussels skyline is now epitomised by the haphazard placement of concrete high rise skyscrapers (Fig. 4). This attitude is best illustrated by the destruction, despite several petitions, of Horta’s iconic Maison de Peuple or ‘House of the People’ in 1965, a building of great architectural merit, delivered to a tight budget on an awkward plot (Fig.5a). It was replaced with the Sablon Tower, an ungainly substitute (Fig.5b).

With the introduction of the new and improved Heritage legislation referenced above, the persevering public outcry, and the government close to achieving their goals, ‘Brusselisation’ halted. This is not to say that the redevelopment of historic buildings has come to a halt, but rather that “a compromise has been found … so far as [the developer] maintains or rebuilds the most valuable facades” (Loits, 2004). This has spawned a practice known as ‘facadism’. A prime example of this is another of Horta’s iconic buildings, Hôtel Tassel, where only key elements have been preserved, such as the front façade, entrance hall and staircase.

Figure 5. a) Maison de Pueple. b) The Sablon Tower

9

Chapter 2: The Sociocultural Value of Art Nouveau

There are several criteria by which to judge whether or not a building is worth conserving or whether it should be destroyed. There are obvious financial implications but the “final choice needs to be taken on non-financial criteria” (Loits, 2004). Determining the sociocultural, or non-financial, value of a building is one important step in ascertaining the overall societal worth of its conservation. However the sociocultural category can be further split into several related and overlapping subcategories. It is difficult to define these subcategories because attitudes to conservation can often be less rational than the number and fact driven business of economics. The value attached to a building is often a matter of the heart, or of an individual’s perception. Each of the distinct stakeholders in a conservation project, including private landlords, the local government, the general public or even the financers, have a different perception and set of priorities. Moreover, value can be based on the subjective or emotional: experience; zeitgeist; artistry; aesthetics; affiliation with a significant historical episode; or connection to cultural heritage. There is substantially more “to architectural heritage conservation than arresting or impeding the process of physical decay through technical intervention” (Stubbs, 2009, p. 13). Conservation is warranted when past and present sociocultural factors, together with the language of architecture, create synergy such that a completed project is greater than the sum of its constituent parts.

2.1 - Historical Value Historical value is intrinsic to heritage and therefore to conservation, and it can accrue in many ways. Most are aware of the notion that age is directly proportional to value. As a building becomes older, the rarer it becomes, and as it ages it acquires more of the patina of heritage. “Old and new structures are not interchangeable” (Loits, 2004), and if an old building is destroyed and replaced with something identical, its history and authenticity are lost. However, longevity is not the sole factor in determining historical value. The age of materials used, connection with a historical event or person, uniqueness of style, technological breakthrough or just documentary capacity, may all impact on historical value.

Informing future generations is also an important aspect of historical value. An abundance of lessons can be learned from studying the past, from sketch ideas, from the thoughts and memoires of past architects, or through research and academic study. The detailed study of art nouveau made it the precursor for modernism and art deco. Art nouveau formed the “link from the classical tradition to the modern movement in the ” (Unesco, n.d.). It was a revolutionary movement, exploiting and expressing to the full the technological advances of the day, thus laying the foundations essential for a transformation into a completely different stylistic approach. This is exemplified by 10

Horta’s Hôtel Tassel where use of visible sculpted structural iron ‘trees’ in a residential setting was revolutionary (Fig.6). This is the same technology that would inform the steel columns in Mies van der Rohe’s Barcelona Pavilion, but demonstrated through a far more unembellished and rational approach (Fig.7). Art nouveau also pioneered the use of reinforced concrete and used it to its maximum potential as a malleable material, not only for structural facades but also to create the fine detail to create the impression of rough-hewn stone. To a certain extent, it could also be counter- argued that modernism was spawned by the historical mistake of excessive ornament that characterised both art nouveau and art deco. Figure 6. Hôtel Tassel - Capital of an iron 'tree' column Conservation requires the use of original materials and period techniques. The teaching of practical skills such as restoration, preservation and conservation techniques (and the consequent very existence of rare skilled labour) are encouraged in the presence of a conservation-orientated mind-set. There are very few craftsmen who can restore an art nouveau building to its full potential. As a result this is where some of the hidden costs lie. Furthermore, conservation “allows for the practice of ‘archaeology’ and for the discovery of unfamiliar or altered elements” (Aubry, 2014). This allows us to learn more from the past, for both documentary architectural history and interest, and for the expansion of conservation skills. With today’s relative paucity of the short-lived genre’s buildings, architectural archaeology can also reveal more of the wonder and splendour of art nouveau.

Figure 7. Barcelona Pavilion Structure

11

2.2 - Cultural and Symbolic Value Attitudes in Brussels towards art nouveau have not always been favourable, as demonstrated by the process of ‘Brusselisation’. However, modern sentiments reflect the fact that this could not now be further from the truth. Art nouveau is deeply rooted in Belgian history and has become a mark of significant national pride and identity. It has been realised that “buildings are products of human activity that reflect sociological trends, national character and ‘the spirit of the time’” (Stubbs, 2009, p. 4). Art nouveau has become a veritable symbol of Brussels and serves as a reminder of a rich history, and the social conditions and liberal attitudes that led to its creation. As art nouveau has become embraced locally, so it has become recognised internationally through UNESCO and other initiatives, such as the Biennale. It is growing as an important source of cultural tourism and Horta’s work has become one of the main highlights of Brussels, captivating people through both their interest in art and architecture, and their passion for cultural diversity. It provides an insight into historical lifestyles and is now a feature on a par with other tourist activities, adding value as an invisible export to other tangible Belgian exports such as foods, chemicals, or finished diamonds. Cultural tourism and international interest have perhaps shaped today’s more mature Belgian attitudes towards conserving and revitalising its art nouveau heritage.

Within the scope of cultural value, there is an ingrained social value. Communities and individuals often develop an attachment to a landmark, space or building. This “‘place attachment’ refers to the social cohesion, community identity, or other feelings of affiliation” (The Getty Conservation Institiute, 2002, p. 12) gained from heritage. The surrounding activities are not based on the history of the sites, but more on the quality of a social and public gathering space.

There is also political value: governments use legislation as a tool to shape opinions and enforce culture and heritage. Fortunately for art nouveau, the current trends in Brussels are more sympathetic to historical sites and buildings. The politics of conservation and heritage also forge a relationship between civil and social life. The art nouveau movement initially had an ideological political agenda that wanted to make art accessible to everyone, in tune with a new century which was to bring an increased social equality. Industrialisation seemed to be the process by which this could be manifested, with rapid and mass production decreasing the cost of individual components and their affordability to the common man. Perversely, the opposite happened, as the rich embraced this new art form, driving demand for bespoke styling thereby raising costs to a level unattainable to the average person.

12

Finally within the cultural and symbolic realm, there is spiritual value. This includes religious meaning, but also covers secular and sensual experiences, such as rapture, amazement and wonder. Art nouveau has an ambivalent relationship with religion. Horta’s architecture was extensively criticised by the Church and was considered antireligious. This was particularly because art nouveau was liberal and had almost provocative attitudes to sex and feminine forms (Fig.8), but also its serpentine whiplash curves, which were considered evocative and reminiscent of the devil in its animal form. Interestingly the opposite is true regarding Gaudi’s ‘modernisme’ style, a Catalan variant of art nouveau. These more relaxed Catalan attitudes culminated in Gaudi designing the Sagrada Família, a large Roman Catholic basilica in Barcelona.

Figure 8. An Alphonse Mucha Print

13

2.3 - Aesthetic Value The aesthetic value of heritage is perceived primarily through the visual impact of a building. However, it can be argued that aesthetics covers all of the senses and considers the entire sensory experience of a place. It is a subjective quality and consequently each individual interprets it differently and forms a personal and independent opinion on it. Aesthetics has several derivatives and Figure 9. Hokusai – The Great Wave off Kanagawa (1833) represents the quality of design and its evolution, materials, relationship to surroundings, interplay between styles and cultures, beauty, visual impact and craftsmanship.

The introduction of Japanese art (Fig.9) into Europe proved remarkably prescient and its techniques and simulation of nature were eagerly adopted and adapted to inform art nouveau. This, in combination with the industrial revolution, technological advances and novel materials, foreshadowed a new approach to art and design that celebrated industry, nature and the feminine and curvilinear forms that “gushed spontaneously from the tip of [Horta’s] pencil” (Horta, 1985, p. 282). This union between two distinct cultures provided a completely unique outlook and this hybrid vigour added great aesthetic value. Figure 10. Hôtel Solvay –Door Handle Detail With art nouveau as a whole, quality of design and artistry are the overarching features and the most likely reason for its conservation. This is heavily based on aesthetic perception and its “novel and harmonious composition” (Masini, 1984, p. 100). Horta created architecture with “spatial fluidity and continuity, unifying each building’s interior and furnishings” (Pevsner, 2005, p. 96) and with the view of being gesamtkunstwerke, or the ‘total work of art’. Horta’s Hôtel Solvay is an example of this, where small or insignificant elements (Fig.10) are treated with the same importance, using the same motifs and detail, as more prominent features like entrance halls and large murals or ‘sgraffiti’ (Fig.11). Everything is designed to be both functional and beautiful and each feature is considered as one coherent work of art, whether Figure 11. Hôtel Solvay – Entrance Hall on the façade (Fig.12), or on the interior.

14

Horta, through a combination of technology and modern planning, popularised open plan living spaces, bathed in natural light from stained glass light wells (Fig.13). He achieved a “personal and living” (Horta, 1985, p. 34) composition, the beauty of which “was a reflection of the society and of the arts and crafts which had created it” (Masini, 1984, p. 17). As an aesthetic creation, Horta’s work has a value not dissimilar to owning a piece of art by a renowned artist. But the level of detail and Figure 12. Hôtel Solvay – Front Façade craftsmanship, the materiality and ambience, and the whole atmosphere of the building, would be nigh-on impossible to recreate today. This is what gives the building its inherent value. Paradoxically, art nouveau may have been a movement mired by its own stylistic extravagance, the feature that made it so popular in the first place. Figure 13. Hôtel Solvay – Stained Glass Light Well

15

Chapter 3: Economic Value of the Conservation of Art Nouveau

The typology of heritage and conservation divides broadly into economic and sociocultural value groups, and much like their previously noted subcategories, they overlap significantly. Economics quantifies value in an unequivocal and understandable way to the general public, whilst sociocultural value resides in the more conceptual and intangible skeleton of conservation. Within economic value there are further sub divisions, namely ‘use’ and ‘nonuse’ values. The ‘use’ value is synonymous with market value, to which a price can be attached with relative ease. This includes predominantly private properties and the physical goods and services provided. ‘Nonuse’ values, or non-market values, on the other hand, are far more difficult to appraise and therein lies the noticeable similarity with sociocultural values. To quantify the financial value of conservation, the ‘use’ value has to be taken into consideration and the relevant figures for comparison are house prices, but also the impact of conservation on the wider income through tourism.

3.1 - The Cost of Conservation of a Horta Property Despite growing interest in art nouveau, the property market has not yet reached the threshold of universal public demand. There are very few art nouveau properties that come up for sale annually - usually between three and five in the Brussels region. Buildings by revered architects like Horta are exceptionally rare and they are few and far between.

It takes a special type of person to buy an art nouveau property. “People who buy art nouveau are aesthetes” (Vandorpe, 2008). These are people with a particular appreciation for a certain style and originality, or those who are undaunted by the huge challenge of restoration that faces them. There are several deterrents from purchasing an art nouveau property. Firstly, for the most part, examples of art nouveau architecture were commissioned by the wealthy who wanted to show off. As a result, houses are often expansive, with several hundred square meters of floor space. Modern lifestyle and needs have changed, and an abundance of space is no longer necessary, and may represent locked- up value in the throes of a housing shortage. Secondly, Horta’s (and many other architects’) work was bespoke, to suit the domestic or business needs of a particular client. This could result in the inclusion of several specialised rooms, which may then have no modern uses. It may be impossible today to find a new owner with similar needs and wants. Thirdly, many of the art nouveau houses survived a tumultuous past and as a result have been left in very poor condition. This, combined with the staggering amount of detail, requires specialised and extensive restoration, preservation and archaeological study, which, in turn, is expensive and time consuming, requiring specialised labourers, craftsmen, architects and historians. On top of this, there are now stringent policies and stifling 16 bureaucracy concerning conservation, adding to the length of time taken and overall costs, not to mention the lingering doubt of legal ramifications. Finally, once the building has been completely restored or preserved, running cost and upkeep are extremely high.

On the whole, art nouveau properties in Brussels are substantially more expensive than the Brussels-

Capital region average (Fig.14). In 2008, according to Jean Corman of Victoire Properties (Vandorpe, 2008), the price for an art nouveau property was between €1 million and €2.5 million. These are a far cry from the capital region 2013 average of €386,941 (Moens, 2014). While it is difficult to compare house prices across the boom-to-bust years of 2008-2011, empirically this difference is clearly significant. In recent years, house prices have again increased across the board.

BRUSSELS CAPITAL REGION 2011 2012 2013 evolution % evolution % 2012/2011 2013/2012 Regular Houses (€) 349,063 353,840 368,941 +1.4% +4.3% Villas, Bungalows, Country 1,026,249 894,600 919,398 -12.8% +2.8% Houses (€) Apartments, Flats, Studios 207,325 217,706 225,895 +5.0% +3.8% (€) Building Plots (€/m2) 437.4 410.9 585.8 6.0% +42.6% Figure 14. Table showing an Annual Comparison of Property Prices in the Brussels Capitals Region

There are only a few Horta properties that have changed hands recently. These include Hôtel Winssinger, Hôtel Max Hallet (Fig.15) and Horta’s Kindergarten, all in Brussels, and also Villa Carpentier in , in Western Flanders. These four buildings were all purchased by the same person, Michel Gilbert, a Belgian real estate developer with an affection for Horta’s work. Whilst the work being carried out on the properties is with the view to make them into business ventures, they are being restored as sympathetically as possible back to their former grandeur. To ensure this, all work has and is being carried out under the experienced and watchful eyes of Françoise Aubry, and specialist art nouveau restoration architect Barbara van der Wee.

Hôtel Winssinger was bought by M. Gilbert in 2004 for an undisclosed amount. However, it is known that prior to its purchase the government had spent around €770,000 in restoration. By 2012, when the Hôtel Winssinger was reopened, the total cost of restoration was estimated to be in the order of €2.5million. It is now the -Beijing Gallery with around 800m2 of exhibition space. M. Gilbert went on to purchase Horta’s Hôtel Max Hallet in 2006 for €2.8million. This was an even larger property of roughly 1,200m2. The total restoration cost was €400,000 and works were officially completed in 2008. It is now M. Gilbert’s private residence, but also houses his Events business, and is opened four times a year to the public. Figure 15. Hôtel Max Hallet – Restored Interior

17

Another example of the restoration of a Horta building is the Maison & Atelier Horta (Fig.16), that has now become the Horta museum. Its restoration was staggered, as it was purchased in two parts. The house was first bought in 1961 and the neighbouring studio added in 1973. Restoration started as soon as the first section was bought, and a second restoration was completed in 1989 to create today’s unified space which constitutes the museum. Financial details for the cost of purchase and restoration are not in the public domain, and were not released by the trustees.

Nevertheless, significant financial incentives have been put in place by the local Brussels-Capital region government. Public buildings are subsidised “to the tune of 80%” (Aubry, 2014). For private houses the “grant’s amount is 40%” (Loits, 2004). This may offer encouragement for conservation of art nouveau objects and Belgian heritage, but it also creates added pressures on private individuals, as they are put in charge of large pots of public money. Regardless of generous government subsidy, conservation of art nouveau is very difficult, risky and time consuming, especially when initial house price and the huge discrepancies between restoration costs are added into the equation.

Figure 16. Maison et Atelier Horta (Horta Museum) – Staircase, Interior Details and Bespoke Furniture

18

3.2 - Economic Value of a Restored House It is abundantly clear that “the restoration of a Horta building is not economically profitable” (Aubry, 2014). Nonetheless, each property has a ‘use’ or market value in a fully restored state. Whilst such a property qualitatively has a far higher value than the average, this is quantitatively very difficult to judge outside of an actual sale, because there are no indices to predict the impact of rarity, bespoke nature, and artistry. The object, as with all fine art, is only as valuable as the price people are willing to pay for it.

As previously stated, art nouveau architecture can still have a significant financial impact on the wider economy through tourism. In 2013 there were 3,290,603 arrivals in Brussels with the average length of stay being 1.91 days (Visit.Brussels, 2013, p. 9). The average length of stays seems very short but is related to the popularity of Brussels as a weekend city break, attached to business and private visits to the European Union institutions. A significant proportion of the Brussels economy is generated through tourism (although a large portion of tourists are ‘Eurocrats’). In surveys, some of the tourism is attributed explicitly to Belgium’s “unique architectural setting” (Jansen-Verbeke, et al., 2004, p. 114).

Of the 11 most highly recommended museums, three are housed in art nouveau buildings. The most recommended museum was the Horta Museum, referenced above, and of the 64,000 visitors a year “more than 60% of this number are foreign visitors” (Aubry, 2014). The third most recommended museum is the Musical Instrument Museum, in the Old England department store, designed in 1899 by . The sixth position to feature is the National Comic Book Centre which inhabits the now restored Figure 17. Magasins Waucquez – Interior View Magasins Waucquez, one of Horta’s department stores.

The well-respected Biennale, held in the odd years, specifically to celebrate the art nouveau and art deco patrimoine, brings several thousands of visitors to the City. This means that even if an art nouveau house may not have a direct economic impact as a result of it having been restored, there may nevertheless be a knock-on economic stimulation to surrounding local business such as Hotels, Bars, restaurants and shops. Such a multiplier effect from the injection of cash into heritage conservation contributes to a wider improvement of facilities and attractions. As a result, ever more people visit and further enhance economic vibrancy in the surrounding areas. If well-managed as part of an overarching policy, more investment could be made available to stimulate other, as yet less popular, areas.

19

Conclusions

Art nouveau was an ephemeral movement and it seemingly disappeared as soon as it had begun to make an impact. With the help of the conservation of Horta’s architecture, and other art nouveau specimens throughout Brussels, the movement has been given a new lease of life. Horta’s work has now been given another chance to live up to the seismic changes it made to architecture.

Horta’s work is undoubtedly worth conserving. In the grand scheme of the corpus of world art, his buildings are “important markers in the history of European architecture” (Aubry, 2014) and in Brussels their sociocultural values are of paramount importance to Belgian national identity and heritage.

As a purely economic exercise, it might not make sense to restore art nouveau: sensitive restoration is practically very difficult to achieve even with generous subsidies, due to the high initial property cost, the lengthy and costly process of restoration and the high upkeep and running costs. Although theoretically, it could be possible to turn a profit if “a use which totally respects all the original features” (Aubry, 2014) was found and then the investment recouped through ticket sales and corporate events, or by selling the property in favourable market conditions, such endeavours should not be viewed as money-makers, as they would represent an unwise investment and are anyway not the right reason to conserve.

The true value of art nouveau surely lies in non-financial measures, such as historical and educational, cultural and symbolic, and aesthetic values. There is also the unquantifiable facet of financial value - the impact of conservation on the wider economy, on both the micro and macro scales. Locally, investment in conservation allows a newly restored building to act as a growth pole attracting new visitors, and potentially allowing old and new businesses to thrive. On the macro scale, a resurgent art nouveau scene can have an impact on the whole city of Brussels, and even country-wide. Conserved examples of art nouveau are becoming an increasingly attractive prospect for both domestic and international tourists, resulting in a flux of wealth locally, across the city, and across the country. At least in the period of growing awareness, this can become a positive feedback loop, where generated wealth can be directed and reinvested into further conservation efforts, and so restart the process.

It would be naïve to believe that the recent reinvigoration of art nouveau is now a fait accompli, and no conclusions can yet be drawn about its long term renaissance until several further questions are answered. For example, where does the balance lie between public and private sector investment? The role of philanthropists and individuals acting passionately within the anodyne legal framework created by the government will always be of paramount importance.

20

Moreover, there can only be a certain number of museums and buildings dedicated solely to art nouveau. Will it be possible to find a contemporary use for every art nouveau building? The reintegration of these buildings, these works-of-art, into the routine life of the community will determine the long term viability of the genre.

Again, it must also be determined “what must absolutely be conserved, and what may be destroyed” (Loits, 2004). A related question would be: is facadism the only way forward, or one of the ways forward, or not a way forward at all?

Modern Belgium has demonstrated a pragmatism essential to the melding of its constituent ethnic parts into a national whole. Such pragmatism will also be necessary to answer those remaining questions, and to nurture and deliver Horta’s short-lived but wondrous good, through the medium of conservation, into the global roster of artistic merit.

21

Glossary of Terms

Avant-Garde – New, innovative, experimental and often radical ideas and methods primarily in the arts. Can also refer to political ideals.

Conservation – The object determines how it is treated, there are no stylistic choices. As with preservation, the maximum amount of original material retained in an unaltered state if possible. New work cannot alter or affect the original and it must be removable or reversible.

Gesamtkunstwerk(e) – ‘The total work of art’. A work of art that encompasses many different art forms. Used frequently in the context of art nouveau architecture, where all details, from materials to shapes and forms, are considered.

Eurocrat – An official of the European Union. A combination of the words ‘European’ and ‘Bureaucrat’.

Preservation – The action of preventing the destruction of an object and making sure that work carried out can be reversed. The final appearance is no longer the top priority, instead the focus is on maintaining and reusing the maximum amount of original material. All work should be carried out using the same techniques and methods as when first built.

Renovation – The process of making an object look new. The history, context, materials, techniques or original object are of secondary importance to the designer’s vision.

Restoration – Bringing back an object to a past condition. The most important aspect is the finished aesthetic.

Sgraffito – (plural: Sgraffiti) A method of wall decoration. Achieved by applying layers of tinted plaster and scratching designs into it to reveal the coloured layers underneath.

Stylistic Restoration – Restoring an object to a new condition in the same style as it was originally, often with exaggerated features or proportions.

Wallonia / Wallonian / Walloons – The Walloons are a French-speaking ethnic community from , in the Southern region of Belgium.

Zeitgeist – The ‘spirit of the time’. The mood trend, or school of thought that defines a specific period in time, particularly relevant to culture and the arts.

22

Appendix

Horta’s Most Influential Works Date Project Name Location Style Listing Current Condition Notes 1889- The Pavillion of Parc du Neo-Classical IdPA* Restored 2013, In the form of a 1906 Human , 18/11/76 reopened 9/14 Greek temple; Passions Brussels owned by Belgian State 1893 La Maison Chaussée de Haecht, Art Nouveau IdPA Conserved and First bourgeois Autrique , Brussels Elements 30/03/76 Restored 2000 house with elements in the art nouveau style 1893 Hôtel Tassel Rue Paul-Émile Art Nouveau UNESCO Restored 2004; only First example of Janson, Brussels world key elements art nouveau heritage; preserved; now architecture IdPA used as an office 18/11/76 1894 Hôtel Rue Hôtel des Art Nouveau IdPA Conserved and Now the Paris- Winssinger Monnaies, Saint- 07/12/84 Restored Beijing Gallery; Gilles, Brussels Owned by M. Gilbert 1894 Hôtel Frison Rue Lebeau, Brussels Art Nouveau Listed Repurposed in 1955. Now undergoing restoration 1895 Hôtel van Avenue Art Nouveau UNESCO Restored Now offices of Eetvelde Palmerstone, world Belgian Gas Brussels heritage; Industry IdPA Association 1971 1895 Kindergarten Rue Saint-Ghislain, Art Nouveau Part-restored Owned by M. Brussels Gilbert; Horta’s first public commission 1895 Hôtel Solvay , Art Nouveau UNESCO Multiple Owned by the Brussels world restorations Wittamer family heritage 2003; IdPA 07/04/77 1895 Maison du Rue Joseph Stevens, Art Nouveau Demolished in 1965 Synonymous with Peuple Brussels ‘Brusselisation’ 1895 Hôtel Deprez- Avenue Palmerston, Art Nouveau IdPA Van de Velde Brussels 21/06/71 1895 La Maison Anna Avenue de la Tioson Neoclassical Demolished Horta did the Boch D’Or, Saint-Gilles, exterior, art Interior Brussels. nouveau Decoration only interior. 1898 Maison & Rue Américaine, Art Nouveau UNESCO Restored and 2 plots, side by Atelier Horta Saint-Gilles, Brussels world preserved to side, unified by heritage function as the detail. Horta museum in 1969 1899 Hôtel Aubecq Avenue Louise, Art Nouveau Demolished in 1950 Brussels

23

1899 Villa Carpentier Ronse, Belgium Art Nouveau Restored Owned by M. Gilbert 1899 Villa Furnémont Wenduine, Belgium Art Nouveau Listed Royal Institute of Cultural Heritage 1900 Château Chambley Bussieres, Art Nouveau Destroyed in 1915, Chambley France rebuilt 1919 1900 L’Innovation Rue Nueve, Brussels Art Nouveau Destroyed by fire, 1967 1901 Hôtel Roger- Avenue Louise, Art Nouveau IdPA Completely Verstraete Brussels transformed

1901 Maison-atelier Avenue Brugmann, Art Nouveau du sculpteur Forest, Brussels Fernand Dubois

1901 Hôtel Braecke Rue de L’Abdication, Exterior plain. IdPA Restored 1991 Brussels Art Nouveau 04/12/97 Interior 1902 Hôtel Max Avenue Louise, Art Nouveau IdPA Restored and Owned by M. Hallet Brussels 16/10/75 Preserved 2007 Gilbert 1903 La Maison Rue de L’Aqueduc, Art Nouveau IdPA Sander Pierron , Brussels details. 19/02/98 1903 Le Grand Bazar, Rue de L’Évêque, Art Nouveau Demolished Boulevard Brussels Anspach 1903 Kaufhaus Hansa Brönnerstrasse, Art Nouveau Destroyed in WWII Frankfurt 1906 Les Magasins Rue Des Sables, Art Nouveau Conserved and Since 1986, the Waucquez Brussels restored comic book museum 1906 La Maison Vinck Rue Washington, Art Nouveau IdPA Ixelles, Brussels 1906 Brugmann , Brussels Art Nouveau Designed by Hospital Horta to ”soften the stay of patients” 1909 Wolfers Store Rue D’Arenberg, Art Nouveau Listed Jewellery shop Brussels 1981 1920 La Maison Avenue Louise, Art Nouveau Victor Horta Brussles 1920- Palais des Rue Ravenstein, Beaux-Art / Cultural venue in 1928 Beaux-Arts, Brussels Neoclassical Brussels Brussels 1928 Musée des , Belgium Beaux-Art / Art Museum Beaux-Arts Neoclassical/ Linear style 1912- Brussels Brussels Bordering on Severely delayed 1952 Central Station modernism because of war; designed but not completed by Horta

* IdPA: Inventaire de Patrimoine Architectural (Architectural Heritage Inventory)

24

An Insight into Horta - Interview with Françoise Aubry Curator of the Horta Museum, Brussels. 23/12/2014

1 - In your opinion, what aspects of Horta's work are most valuable and most important to preserve? 2 - Is historic, intellectual, educational and cultural value reason enough to restore Horta's work? Or does it have to be economically viable? 3 - Do you think that restoring Horta's work is worth the effort and investment? 4 - In the context of Belgian law what are the difficulties of restoring a public property, such as Musee Horta? 5 - Horta's genius is well documented, do you think that through restoration of his works, there is more to learn? 6 - How many people visit the Musee Horta annually? 7 - How was the restoration of Musee Horta funded? Was it mainly public, private or governmental funding? 8 - Horta is symbol of Belgian culture: as a result, is there a marked difference between numbers of Belgian and foreign visitors to the Musee Horta?

1. Lors des premières restaurations des immeubles de Horta dans les années soixante, on pensait que seules les pièces de prestige méritaient d'être conservées (espaces de réception et cage d'escalier principale) et par conséquent on a démoli l'aménagement des pièces secondaires comme les chambres à coucher ou les escaliers de service. Il y avait alors une méconnaissance de l'art de Horta comme un art total, associant architecture et aménagement intérieur dans tous ses détails. Au musée, lors de la restauration, nous avons pu reconstruire l'escalier de service abîmé par le placement d'un ascenseur dans les années soixante mais n'avons rien pu faire pour la chambre à coucher de la fille de Horta qui avait été transformée en salle d'exposition et dont les meubles ont été enlevés et ont disparu. Mon point de vue est donc que si des aménagements originaux sont conservés dans des bâtiments de Horta, il faut intégralement les respecter. Dans l'hôtel Tassel, il ne restait aucune trace du mobilier et il a été possible de transformer le bâtiment en immeuble de bureaux. Par contre, la peinture murale de la cage d'escalier qui avait été dissimulée sous des couches de peintures a été intégralement restaurée. Le problème est évidemment de trouver un usage à ces bâtiments, usage qui respecte au maximum tous les éléments originaux. A l'hôtel Van Eetvelde, le salon et la salle à manger ne servent que pour des réunions: on n'a pas dû y introduire un nouveau système d'éclairage ainsi que des câbles pour tout le matériel informatique.

1. In the 60’s, at the time of the first Horta restoration work, it was believed that only the important and prestigious rooms were worth preserving (reception areas and main stairwells) and as a result the fittings in minor rooms, such as bedrooms and back stairs were destroyed. At that time, there was a failure to understand Horta’s skill being a complete art form, linking architecture and internal fixtures in all of their detail. Here, at the museum, since the restoration work, we’ve been able to reconstruct the back stairs, destroyed in the 60’s when a lift was installed. But we have not been able to do anything in Horta’s daughter’s bedroom, which had been transformed into an exhibition hall. Its furniture was removed and disappeared. In my opinion, if original fitments are retained in Horta’s buildings, they need to be completely respected. In the Hôtel Tassel, there was no trace of any furniture and it has been possible to transform the building into an office block. On the other hand, the mural on the main stairwell, concealed under layers of paint, has been restored in its entirety. The problem, of course, is to find a use for these buildings, a use which totally respects all 25 the original features. At the Hôtel Van Eetvelde, the sitting room and the dining room are only used for meetings. It has not been possible to introduce a new lighting system or cables for IT.

2. et 3. La restauration d'un bâtiment de Horta n'est pas économiquement rentable si ce n'est qu'elle procure du travail à des artisans spécialisés et permet de garder en vie des savoir faire. On restaure ces bâtiments parce qu'ils sont des jalons importants dans l'histoire de l'architecture européenne et . génèrent un tourisme culturel qui est un facteur appréciable dans l'économie de la Région de Bruxelles-Capitale. L'image de l'Art Nouveau et de Horta renforce positivement celle de Bruxelles.

2 & 3. The Restoration of a Horta building is not economically profitable since use is made of the skills of specialist craftsmen which permits the preservation of these skills. We restore these buildings because they are important markers in the history of European architecture and bear witness to the extraordinary quality of the craftsmen who worked on them. In addition, these buildings generate cultural tourism which is an important factor in the economy of the capital city of Brussels region. The art nouveau and Horta positively strengthen the image of Brussels.

4. Les lois de protection du patrimoine architectural permettent la restauration du patrimoine Art Nouveau: nous avons été subsidiés jusqu'à 80% du coût des travaux mais cela par ce que nous sommes un musée ouvert au public. La Région est obligée par la loi de subsidier la restauration des bâtiments classés, ce qui est le cas de tous les bâtiments de Horta en Région Bruxelloise.

4. Laws protecting architectural heritage allow the restoration of art nouveau heritage. We have been subsidised to the tune of up to 80% of the cost of the works but that is because we are a museum open to the public. The region is required by law to subsidise the restoration of classified (listed) buildings, which is the case with all Horta buildings in the Brussels area.

5. Horta a détruit pratiquement toutes ses archives. La restauration du bâtiment permet donc de pratiquer de "l'archéologie" et de découvrir des éléments inconnus ou transformés. Une restauration douce est nécessaire afin d'intégrer au fur et à mesure toutes les découvertes faites en cours de chantier et d'adapter ainsi la restauration.

5. Horta destroyed practically all of his archives. The restoration of a building therefore allows for the practice of ‘archaeology’ and for the discovery of unfamiliar or altered elements. Delicate restoration is necessary in order to gradually incorporate all discoveries made during the works and in order to adapt the restoration in this way.

6. Nous recevons actuellement 64.000 visiteurs par an et parmi eux une proportion importante de visiteurs étrangers (plus de 60%).

6. At this moment in time, we have 64,000 visitors a year and more than 60% of this number are foreign visitors, an important proportion.

26

Bibliography

Anon., n.d. A Masterpiece of Art Nouveau. [Online] Available at: http://www.comicscenter.net/en/about-us/a-masterpiece-of-art-nouveau [Accessed December 2014].

Anon., n.d. The Réseau Art Nouveau Network. [Online] Available at: http://www.artnouveau-net.eu [Accessed October 2014].

Art Nouveau and Society. 2008. [Film] Directed by Jack van Domburg, Kai Fridstrem. Brussels, Belgium: Réseau Art Nouveau Network / Instamatic.

Aubry, F., 1998. Horta: Art Nouveau to Modernism. Brussles: Harry N. Abrams, Inc..

Aubry, F., 2014. An Insight into Horta [Interview] (23 12 2014).

Aubry, F., Bastin, C. & Evrard, J., 2005. Horta The Ultimate Art Nouveau Architect. s.l.:Ludion.

Bjorneberg, B., Fall 2014. Renovation, Restoration, Preservation, Conservation. Conservation and Design.

Bradbury, D., 2009. The Iconic House. : Thames & Hudson.

Brussels Institute for Statistics and Analysis, 2014. Mini-Bru 2014. Brussels-Capital Region in Figures, Brussels: BISA.

Collette, Q. et al., 2010. Victor Horta's Iron Architecture: A Structural Analysis, Brussels: s.n.

Coxen Warr, A., 2011. Brussels and Beyond - The Conservators' Guide to European Institutions. [Online] Available at: http://www.buildingconservation.com/articles/european-institutions/european- institutions.htm [Accessed December 2014].

Crabb, A., 2010. The Initiatives of the EU in the Area of Cultural Heritage, : s.n.

Crofton, I., 2011. Big Ideas in Brief. s.l.:Quercus.

Delmendo, L. C., 2014. Belgian housing market weakens. [Online] Available at: http://www.globalpropertyguide.com/Europe/Belgium/Price-History [Accessed November 2014].

Drury, P., 2012. Conservation - An Evolving Concept. [Online] Available at: http://www.buildingconservation.com/articles/conservation/conservation.htm [Accessed December 2014].

Euromaxx: Highlights of the Week. Michel Gilbert and Victor Horta. 2011. [Film] Germany: Deutsche Welle (English).

Fahr-Becker, G., 2013. L'Art Nouveau. s.l.:H. F. Ullmann.

Goslar, M., 2012. Victor Horta 1861-1947. L’homme, l’architecte, l’art nouveau. The Art Tribune, 17 October.

Horta, V., 1985. Mémoires. Brussels: C. Dulière.

27

Irving, M. & St John, P., 2007. 1001 Buildings You Must See Before You Die. s.l.:Octopus Books.

Jansen-Verbeke, M., Vandenbroucke, S. & Tielen, S., 2004. Tourism in Brussels, Capital of the 'New Europe'. International Journal of Tourism Research, pp. 109-122.

Jokilehto, J., 1999. A History of Architectural Conservation. Oxford: Butterworth-Heinemann.

Loits, A., 2004. Social and Economic Integration of Cultural Heritage, s.l.: s.n.

Loos, A., 1908. Ornament and Crime. s.l.:s.n.

Maitland, R. & B, R., 2009. City Tourism: National Capital Perspectives. s.l.:CABI Publishing.

Masini, L. V., 1984. Art Nouveau. London: Thames and Hudson.

Moens, S., 2014. Property Prices Increased in 2013, Brussels: Statistics Belgium.

Oostens-Wittamer, Y., 1982. Living the Solvay House. Brussels: Lebeer Hossman.

Oostens-Wittamer, Y., 2005. Horta the Solvay House. Paris: Diane de Selliers.

Pevsner, N., 2005. Pioneers of Modern Design: from William Morris to Walter Gropius. 4th ed. New Haven, Conn.; London: Press.

Sandrolini, F., Franzoni, E., Varum, H. & Nakonieczny, R., 2011. Materials and technologies in Art Nouveau Architecture, s.l.: s.n.

Schmutzler, R., 1964. Art Nouveau. New york: Harry N. Abrams.

Sembach, K.-J., 1991. Art Nouveau: Utopia: Reconciling the Irreconcilable. Germany: Taschen.

Stubbs, J. H., 2009. Time Honored: A Global View of Architectural Conservation: Parameters, Theory, & Evolution of an Ethos. Hoboken, N.J: Wiley.

Stubbs, J. H. & Makaš, E. G., 2011.Architectural Conservation in Europe and the Americas: National Experiences and Practice. Hoboken, N.J: Wiley.

The Art Nouveau Residence: Major Townhouses of the Architect Victor Horta. 2013. [Film] Directed by NHK Nippon Hoso Kyokai. Brussels: UNESCO TV.

The Getty Conservation Institiute, 2002. Assessing the Values of Cultural Heritage, Los Angeles, CA: The Getty Conservation Institiute.

The Observatory for Tourism in Brussels, 2013. Annual Report 2013, Brussels: The Observatory for Tourism in Brussels.

Tsihlias, G., 1985. Victor Horta: The Maison Tassel The Sources of its Development, s.l.: s.n.

Unesco, 1990. THe Unesco Courier - Art Nouveau, Paris: Unesco.

Unesco, n.d. Major Town Houses of the Architect Victor Horta (Brussels). [Online] Available at: http://whc.unesco.org/en/list/1005 [Accessed December 2014].

Vandorpe, A., 2008. Capital of Art Nouveau. The Financial Times, 3 May.

Visit.Brussels, 2013. Annual Report 2013, Brussels: The Observatory for Tourism in Brussels.

Wachten, K. & Neubauer, H., 2010. Urban Design & the 20th Century Architecture. s.l.:H. F. Ullmann.

28

Wailliez, W., n.d. Looking for Vanished Decorations in Victor Horta’s Hôtel Frison: an Assessment of Puzzling Archaeological Findings, Brussels: Academia.edu.

Wilkinson, P., 2010. 50 Architecture Ideas you Really Need to Know. London: Quercus.

Woolley, R., 2006. Counting The Cost. [Online] Available at: http://www.buildingconservation.com/articles/countingthecost/countingthecost.htm [Accessed December 2014].

29