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Retrofit case study: Wolfe Crescent

Sustainability in Practice: Wolfe Crescent in Charlton by Levitt Bernstein

Project data

House type 1920s semi-detached
Location Charlton, south-east London
Project team leader London Borough of Greenwich
Energy consultant The Healthy Home
Construction type Rendered solid brickwork
U-values External wall, 0.1 W/m2K; roof insulation at joist level, 0.13 W/m2K; triple-glazed timber windows and doors to north and east, 0.75 W/m2K
Services upgrading Combined air-source heat pump and MVHR; solar hot-water panels; electric radiator in bathroom operated by movement sensor
CO2 emissions before retrofit 124kg/m2/year
Estimated CO2 emissions after retrofit 10kg/m2/year, including 10kg saved by renewable energy
Percentage reduction 92 per cent

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