35 Belgrave Square, London, SW1X 8QB
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35 Belgrave Square, London, SW1X 8QB Heritage Statement December 2020 Rev 00 Contents 1.0 Introduction 1.1 Purpose of this document 1.2 Site 1.3 Current legal status 1.4 Assessment of significance 2.0 Background History 2.1 Belgravia 2.2 Belgrave Square 2.3 35 Belgrave Square 3.0 Description 3.1 Building as surveyed in 2020 4.0 The proposals and Heritage impact 4.1 Heritage impact of the proposals 4.2 Conclusion 5.0 Appendices 35 Belgrave Square, London | Heritage Statement for Planning Amendment to belvedere 2 Heritage Statement 1.0 Introduction 1.1 Purpose of this Document 1.2 Site This report was prepared to support amendments to The site comprises No 35 Belgrave Square and rear N O W T O L I courtyard. The original mews is no longer accessed R consented Listed Building application 20/03406/LBC for W the comprehensive refurbishment 35 Belgrave Square, through the site and is now demised separately. The site London, SW1X 8QB. This document has been produced is located near the Eastern end of the Southern terrace - by Formation Architects on behalf of the current owner of part of the grouping of No.25 to 36 (consecutive) on the property. Belgrave Square in the City of Westminster. The Square is the principal townscape feature of the Belgravia A Historic Building Report was previously prepared by Conservation Area, within the City of Westminster. The Donald Insall Associates in 2015. The report provided a site is bounded at the front (North) by the road, to either very detailed account of the site and the building’s historic side and the back by the party walls with the adjoining significance to support the original planning and listed properties. building applications. 1.3 Current Legal Status The purpose of this new Historic Building Report is to set out the historical and architectural significance of the No 35 Belgrave Square is a Grade I statutory listed building and inform our proposal for alterations to the building since February 1958. The listed building recently consented proposals. A listed building consent description highlights a number of features: and a planning application will be submitted in association ‘Grand terrace of houses. Circa 1825. George Basevi. with this Heritage report for our proposed amendments Stucco. Low slate mansard. Graeco-Roman style. Centre to: pair and end houses set forward slightly with giant - QFT 2015 consent (Ref: 15/0436/FULL & 15/04537/ Corinthian columns to first and second floors. 3 storeys, LBC) attic and basement. Each house 3 windows wide. Projecting columnar porches with waterleaf capitals. “Erection of single storey extensions at rear lower ground, Channelling to ground floor. Continuous cast iron balcony ground and fourth floor levels; alterations at roof level to first floor. Square headed windows with architraves, including reducing height of lift overrun, replace front pedimented to centre pair. Dentil cornice above second pitch roof, installation of plant equipment, solar panels floor. Balustrade to attic with urn finals. Attic to centre and rooflights; alterations to windows and door, replace houses with elaborate, pedimented to centre pair. Dentil rear riser duct; minor alterations to rear closet wing to cornice above second floor. Balustrade to attic with urn inset lift shaft; excavation of basement and sub- finials. Attic to centre houses with elaborate acanthus basement to rear; minor alterations to front basement decoration and cartouche flanked by female figures... vaults. Internal alterations including the removal and Interiors not inspected. Cast iron railings. One of four addition of partitions. All works in association with the use grand terraces facing Belgrave Square.’ of the property as a single-family dwelling (Class C3)” The Belgravia Conservation Area was designated in - Formation Architects 2020 consent (Ref: 20/03405/ 1968. The related Proposals Statement which was FULL & 20/03406/LBC) produced in draft in October 2013 highlights Belgrave Square as forming ‘the setting for the grandest of “Alterations to extension at lower ground floor, re- terraces and mansions’ with some of the ‘earliest and rendering and repairs to stucco of front and rear grandest examples of first-rate terraced houses’. The elevations, excluding the ground floor, installation of Proposals Statement highlights a number of protected replacement windows on rear elevation, alterations to the local views into and out of Belgrave Square from roof and A/C plant” numerous viewpoints including a protected view out of This report should be read in conjunction with the Belgrave Square towards Wilton Crescent. Belgrave drawings and Design & Access Statement prepared by Square Garden is protected by the London Squares Formation Architects. Preservation Act (1931). 35 Belgrave Square, London | Heritage Statement for Planning Amendment to belvedere 3 1.4 Assessment of Significance The heritage value was comprehensively assessed and established in the Historic building report prepared by The National Planning Policy Framework (NPPF) states in Donald Insall Associates for Quinlan & Francis Terry’s paragraph 128 that: application in 2015, noting the following: ‘In determining applications, local planning authorities [...] should require an applicant to describe the significance of any heritage assets affected, including any contribution The building is located towards the eastern end of the made by their setting. The level of detail should be southern terrace. It features the standard internal plan of proportionate to the assets’ importance and no more than a London terraced house of the early to mid-19th century, is sufficient to understand the potential impact of the albeit on a grand scale, typical of Cubitt’s developments proposal on their significance’. in Pimlico and Belgravia. This plan comprises two principal rooms to each floor, with entrance hall and stair to one To assess the significance of No 35 Belgrave Square, it is side and a rear wing behind the stair. The main difference essential to identify the elements of significance, based between the house of this size and a smaller London on a good understanding of a site, enabling the architect terraced house is the presence of the secondary to develop proposals that safeguard, respect and where staircase located behind the principal stair, and the more possible enhance the character and cultural values of the extensive range of service rooms at basement level and of site. servants’ accommodation at attic level. Annex 2 of the NPPF defines significance as: No 35, therefore, has significance as an example of a ‘The value of a heritage asset to this and future grand Regency mid-terrace townhouse. Its original generations because of its heritage interest. The interest internal plan form is still recognisable and where it may be archaeological, architectural, artistic or historic. survives is of primary heritage significance. Significance derives not only from a heritage asset’s The original hierarchy of floor levels (and their different physical presence, but also from its setting’. status) is still evident in terms of the varied storey heights Historic England’s Conservation Principles, Policies and and some of the surviving decorative features. Although Guidance (2008) includes a methodology for assessing the building was adapted for institutional use in the significance by considering ‘heritage values’. In this 1950s, its original internal layout is still discernible and instance NPPF terms are used because their adoption most of the later date alterations either relate to the simplifies the preparation and assessment of planning service areas in the basement or are subdivisions of the and listed building consent applications, but the larger rooms at principal floor levels and above. equivalent heritage values are given in brackets for The large main rear ground floor room (originally a dining reference. This assessment uses two main types of room converted to a library in the 1950s) retains its interest as defined below. original proportions, but the entrance hall and the principal front room have been subdivided and altered in the early 20th century, both in terms of the plan form and their decorative character. However, the view of the fine original main staircase with its generous proportions and elegant restrained balustrade still dominates the entrance hall. The staircase extends from the ground to the second floor and represents one of the most significant surviving original features in the building. Its original decorative character and appearance could be further reinstated by removal of the early 20th century mouldings applied to the stair walls and by the reinstatement of the original style doors and architraves facing the hallway and landings. 35 Belgrave Square, London | Heritage Statement for Planning Amendment to belvedere 4 The secondary ‘service’ staircase behind the main stair also largely survives but has been altered by the 1950s insertion of modern lift shaft into its light well and by the reconstruction of its lowest (basement to ground) floor level. As for the original internal decorative character, the building still retains some surviving elements. Among these the following deserve particular note (although other currently hidden elements may become apparent when some of the 20th century works are opened up): • original shutters and window joinery/dressings to majority of the front façade windows. • complete original windows, internal shutters and window dressings in the rear bowed closet wing. • original windows in the front basement, 2nd and 3rd floor levels. • original (or original style) cornices and skirtings in some of the ground, 1st and 2nd floor rooms. • the only surviving original fire surround in the front (west) attic room. • the vaulted silver store in the centre of the basement floor plan. All these elements are of particular architectural and historic significance and will be retained and repaired where necessary. […] Externally, the primary significance of the building lies in the contribution of its front façade to the frontage of the southern terrace of Belgrave Square and in turn to the setting of the whole Square.