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Cartwright Pickard completes London's largest Passivhaus scheme

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Cartwright Pickard has completed a 30-home development, including 18 built to Passivhaus standards, in Hammersmith, west London

Built in a conservation area, the £5.3million project for Octavia Housing & Care features four brick-clad housing blocks.

Two of the four blocks are built to Passivhaus standards; a three-storey terrace of six houses and a five-storey block containing 12 flats. The project is completed by a five-storey apartment block and a two-storey mews of four homes with private roof terraces.

The Sulgrave Road terrace has been designed to ‘re-establish and reinforce the Victorian street frontage’ and contains roof light chimneys that provide daylight and ventilation to circulation areas.

Sliding louvre panels on the development’s south facing windows provide movable solar shading to reduce thermal heat gain and control the levels of direct light.

Architect’s view

James Pickard, director, Cartwright Pickard

We are proud to have delivered the biggest certified Passivhaus project in London, and the first mixed tenure Passivhaus project in the UK, proving that Passivhaus dwellings are a viable proposition in urban locations that might previously have been deemed unsuitable. The attractive brick finish and careful detailing demonstrates that eco-homes can be attractive, and don’t have to look ungainly or incongruous.

Project data

Start on site September 2011
Completion September 2013
Gross internal floor area 2,855m²
Form of contract or procurement route PPC 2000
Total cost £5.3 million
Cost per square metre £1,821
Annual space heating demand ≤15kWh/m²/yr @ 20°C internal temperature
Annual primary energy demand ≤120kWh/m²/yr including domestic electricity consumption
Air tightness 0.6ach@50Pa verified by air pressure testing
Architect Cartwright Pickard Architects
Client Octavia Housing & Care
Quantity Surveyor MDA Consulting
Contractor Durkan Limited
Structural engineer Campbell Reith
M&E engineer and environmental engineer Atelier 10
Landscape architect Grontmij
CDM coordinator MDA Consulting
Approved building inspector NHBC
Clerk of Works David Neale Associates

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