Project: Porter-Leake House
PORTER-LEAKE HOUSE, TWYFORD MOORS
DESIGN + ACCESS STATEMENT
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An existing 1970s split-level house in Twyford Down, set within the South Downs National Park is transformed to create a large family home overlooking the River Itchen valley. Internal spaces are completely reorganised to suit a family of six. The house is extended to create a dramatic new projecting master bedroom suite above a new swimming pool to the southern end of the house. Externally, the brick and concrete-tiled house is overclad in sweet chestnut and the roof in black zinc to create an up to date, low maintenance home. The house will be upgraded thermally through external insulation beneath the proposed over-cladding and new, low-heat-loss glazing.
The existing house has its pedigree in the work of the great American architect Frank Lloyd Wright – with his ‘Prairie’-style houses in the American mid-west: a language of long, low, pitched roofs above masonry base framing large window openings, creating a very domestic architecture. This approach led us to extend the linear form of the existing house creating additional bedroom space to the southern end, all sheltered beneath the low pitched roof, now re-roofed in black standing seam zinc roofing. This extension sits above the sloping site beyond the existing masonry base to create an undercroft that accommodates a new outdoor pool. The living space is extended out as a glazed enclosure beneath an oversailing roof. The existing wrap around balcony is removed, separating
balustrading replaced with a fine micaceous painted steel handrailing. All existing windows and doors, together with new are to be alu-clad double or triple-glazed units with low E coatings and argon filled cavities, to achieve a typical average U-value of 1.4. The requirement for space heating has been minimised by the provision of high levels of insulation and robust detailing to minimise air leakage. Heating is to be provided by existing gas boiler serving a low profile under-floor heating system. Secondary space heating is to be provided through the installation of a wood burning stove located in the existing living room chimney structure.
kitchen and bedroom balconies. To complete the remodelling, the upper level walls are to be over-clad with locally-coppiced sweet chestnut and the existing black painted balcony
PROJECT DETAILS Client: Status: Contract value:
Diana Porter + Anthony Leake Completion 2013 .£850,000.00
Structural Engineer: Contractor:
Lyons O’Neill Andrew Herridge