Lena Gardens passivhaus case study from CIBSE

Domestic energy-efficient retrofit projects do not come more ambitious than the Victorian mid terrace house in Lena Gardens. Its refurbishment had to tackle the issue of its heat-pervious solid brick walls and leaky sash windows. The task was made all the more demanding because the West London property is located in a conservation area, which prevented alteration of the building’s exterior. Despite these challenges the scheme’s designers – Refurbishment Project winners in the 2013 Building Performance Awards, Green Tomato Energy – managed successfully to transform this unpromising dwelling into the UK’s first private domestic Passivhaus-certified retrofit.

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CIBSE, passivhaus

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Tuesday, 27th May 2014

Claire Truman, EPR Architects

This is a useful case study for not only passivhaus for refurbishment projects, but also for conservation refurbishment and retrofit schemes. The experience gained at Lena Gardens is shared in an honest manner and would be hugely helpful to other teams embarking on a similar project: in particular this is concluded with '10 Lessons Learned'.

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