香港房屋委員會年度年報 Housing Authority Annual Report
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優質家園 為民興建 Building Quality Homes for the Grass-roots Population 碩門邨 Shek Mun Estate 22 Business Review In line with its commitment to contributing to the In 2018/19, the HA completed construction of around “Enhancement of the Housing Ladder”, the Hong Kong 26 800 new flats, including around 20 200 public rental Housing Authority (HA) has been making its best efforts housing (PRH)/Green Form Subsidised Home to build flats to help the Government meet its long-term Ownership Scheme (GSH) flats in 11 projects and housing targets. These flats have included both public around 6 600 other subsidised sale flats (Other SSFs) rental housing (PRH) developments for those who in seven projects. We also completed construction of cannot afford private housing, and subsidised flats around 26 500 square metres of gross floor area for under various schemes to assist buyers in gaining a retail facilities, and around 990 private car and lorry foothold on the housing ladder. In parallel with this parking spaces. activity, the HA has been unflagging in its efforts to achieve “Betterment of Living Quality” in every aspect Over the year, we concurrently worked on developing of its construction activities – in areas as diverse as scheme designs and project budgets for several new sustainability, green living, environmental friendliness, projects. safety and health, accessibility and social inclusivity. This chapter highlights some of our most significant achievements in these respects over the past year. PRH/GSH projects completed in 2018/19: Cheung Sha Wan Wholesale Food Market Site 3 Hoi Ying Estate Ying Fai House, Ying Cheong House So Uk Phase 1 So Uk Estate Camellia House So Uk Phase 2 Lotus House, Lily House, Larkspur House, Carnation House / Gladiolus House, Azalea House, Begonia House Shek Kip Mei Phase 3 Shek Kip Mei Estate Mei Kwai House Shek Kip Mei Phase 7 Mei Cheong House Tung Chung Area 39 Mun Tung Estate Mun Wo House, Mun Shun House, Mun Hong House, Mun Tai House Anderson Road Sites A and B On Tai Estate Hang Tai House, Tak Tai House, Fung Tai House, Shing Tai House Shek Mun Shek Mun Estate Fung Shek House, San Shek House, Sui Shek House, Hi Shek House Lai Chi Kok Road – Tonkin Street Phase 1 Lai Tsui Court Lai Sum House, Lai Yung House, Lai Tong House, Lai Ki House Lai Chi Kok Road – Tonkin Street Phase 2 Lai Pak House, Lai Yeung House Eastern Harbour Crossing Site Phase 7 Yau Lai Estate Shun Lai House 3838 Business Review Shek Mun Estate (left) and Ngan Ho Court Other SSFs projects completed in 2018/19: Cheung Sha Wan Wholesale Food Market Site 5 Hoi Lok Court Hoi Pik House Phase 1 Choi Hing Road Choi Hing Court Choi Huen House, Choi Wui House, Choi Kiu House Kiu Cheong Road East Ping Yan Court Ping Oi House, Ping Yin House, Ping Tai House Ngan Kwong Wan Road East Ngan Wai Court Ngan Wai Court 優質家園 為民興建 Ngan Kwong Wan Road West Ngan Ho Court Ngan Yuk House, Ngan Long House Kai Tak Site 1G1(B) Kai Long Court Kai Yiu House, Kai Yat House, Kai Yeung House Building Quality Homes for the Grass-roots Population Sheung Lok Street Kwun Tak Court Kwun Cheong House, Kwun Shing House, Kwun Wing House Encouraging “Ageing in Place” Floor plan of flat internal space – door width of the main entrance in 800 mm, kitchen and bathroom in 750 mm With a large number of elderly residents currently living in PRH housing, and an ageing Hong Kong population, the needs of the elderly are an important focus of the HA’s design and construction activities. The Universal Design approach has been implemented in our estate design over the past decade and a half, both in new estates and old ones undergoing renovation or refurbishment. The result has been a host of accessibility features of special value for the elderly, including wheelchair-accessible corridors, flat entrances, and kitchen and bathroom doorways, and the use of materials that are safer for and easier to use by elderly and disabled users, such as non-slip floor tiles and large-sized switches. 39 Business Review Making our Estates Greener The HA supports the government’s environmental policies, including the promotion of renewable energy. We use various green tools to enhance our public Since 2011, a grid-connected photovoltaic (PV) system housing developments, beginning from the design has been provided in all new PRH developments stage. When designing a new public housing whenever sufficient space is available and the relevant development, we utilise Carbon Emission Estimation design criteria can be met. The PV system is designed (CEE) to estimate its total carbon emissions over an to provide about 1.5 to 2.5% of the electricity demand expected life of 100 years. This tool gives us the ability of the communal area of each domestic block. Up to to fine-tune estate designs in ways that can reduce the end of March 2019, PV systems with a total system their carbon emissions and enhance their sustainability. capacity of 930 kW had been installed in 98 domestic CEE can be applied to many different aspects of the blocks in HA estates. design and construction process, including construction materials, building structures, communal Another tool that is enhancing our building sustainability building services installations, the use of renewable is “passive design”, a design principle that focuses on energy, tree-planting, and demolition. In addition, by utilising the unique characteristics of building sites to applying the ISO 50001 Energy Management System optimise the use of daylight, natural ventilation, and to our new domestic blocks, we are able to measure other beneficial natural features. Related to this design the communal energy consumption of each block principle are our micro-climate study tools, which can when it is operational. In 2018/19, we applied CEE and estimate the effects of buildings and their placement in energy estimations to nine new projects, and were creating micro-climates. Micro-climate studies enable consequently able to reduce the estimated communal us to avoid creating hot spots or areas with insufficient energy consumption for these domestic blocks natural ventilation, thus enhancing the environmental by about 26% compared with the baseline figure. performance of new estates. The lush greenery of Kwai Luen Estate (left) and Long Shin Estate 40 Business Review Precast concrete staircases incorporating GGBS Green Buildings, Gold Ratings The HA’s building projects are submitted for assessment under the Hong Kong Green Building Council’s green building assessment scheme, the Building Environmental Assessment Method Plus for New Buildings (BEAM Plus NB). This scheme assesses how well a building incorporates various sustainable best practices throughout its life cycle. Our aim in every case is to achieve a Gold rating standard or above under the scheme. The HA’s 2018/19 certification results under BEAM Plus NB (Version 1.2) are summarised below: At the level of building materials, we have for some Project & Rating (Provisional Assessment) time now made environmentally friendly Ground PRH Development at Queen's Hill Site 1 Phase 1 & 5, Granular Blast Furnace Slag (GGBS) part of our Fanling: Platinum Rating specifications for new building contracts. We also require 35% of the cement in concrete used for the Community Hall cum Social Welfare Facilities at construction of precast concrete façades and precast Queen's Hill, Fanling: Gold Rating staircases to be replaced with GGBS. This requirement PRH Development at Near Lai King Hill Road, will soon be extended to semi-precast slabs, subject to successful viability studies that are currently underway. Kwai Chung: Gold Rating SSF Development at Tung Chung Area 54: Our green policies also include provision for planting to Gold Rating create a strong swathe of natural greenery at estates. We target to cover at least 20% of the site area of each 優質家園 為民興建 new estate with greening, and for estates of over two Making Safety a Priority hectares, that figure rises to at least 30%. Our target tree-to-flat ratio is one tree for every 15 flats built. The HA operates a comprehensive Site Safety Strategy Following successful trials of a new in-situ type Zero which is updated annually. Our safety requirements are Building Quality Homes for the Grass-roots Population Irrigation System, which showed it was effective in mandatory for work carried out at all our New Works enhancing storm water management and reducing the and Maintenance Works sites, and also for work use of potable water for irrigation, the system has been conducted by the HA’s property service agents, adopted for the irrigation of selected planters in all PRH cleansing services contractors and security contractors. and SSF projects since 2016. At the same time, we The Site Safety Strategy includes a goal of not more have been developing a prefabricated modular system than nine accidents per 1 000 workers. The HA to make the planting of trees at ground level and on accident rates for 2018 were below this maximum, at 7.4 the podiums of estate blocks simpler and more cases per 1 000 workers for New Works contracts and efficient. We are also looking to use more pre-grown 5.7 per 1 000 workers for Maintenance Works vertical green panels at appropriate projects, as these contracts, and remained well below Hong Kong’s are very effective in increasing the amount of green average industry accident rate of 31.7 per 1 000 coverage and achieving “instant greening”. workers. Most regrettably, however, four industrial fatal accidents occurred in 2018 (of 14 industrial fatal accidents that occurred in the Hong Kong construction industry as a whole).