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Casey to undertake UK first PassivHaus project in Longsight

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Casey to undertake UK first PassivHaus project in Longsight

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Published by TheCaseyCompanies for The Casey Companies in Housing and also in Communities

Casey have been awarded the UK's first large scale PassivHaus project to be undertaken in occupied properties.

Eastlands Homes is using the highly energy efficient PassivHaus standard, usually applied to new build properties, to refurbish 32 apartments in Longsight as part of its Decent Homes programme.  It is the first large-scale adoption in the UK of this approach, and also the first time it has been carried out while residents continue living in the properties.  Excellent resident liaison will be key to this scheme, and the Casey Resident Liaison Team will be working hard to ensure a high quality finish with minimum disruption.

The works comprise an external envelope upgrade to PassivHause Enerphit standards, including new flat roof, external insulation and cladding, high performance windows and doors, improvements to communal areas, new waste management area and associated hard and soft landscaping works including a bespoke community led public realm scheme.  Internal improvements include enhanced insulation and general Decent Homes works comprising new kitchen, bathroom, associated electrical and plumbing works, insulation of solid floors, decoration and a new mechanical heat recovery system.

An interesting feature of the scheme is the external facade which is the Chameleon rainscreen cladding.  This unique product is finished with a crystal layer which, depending on the angle from which it is viewed and the effect of light, appears to dramatically change colour.

PassivHaus homes have to be extremely air-tight and installed with high thermal insulation, making it an expensive and difficult standard to achieve.  Previously, PassivHaus retrofits have only been attempted in heavily subsidised, small-scale pilots.

The Casey Project Team have undergone specialist PassivHaus training to ensure competence and compliance with the standard, and the testing and inspection regime will be championed and rigorously monitored from the outset.

Eastlands Homes hopes to be able to cut carbon emissions by 80% and slash energy bills for tenants from £1,540 per year to just £270 per year.

This project will cost around £40,000 per property - almost four times as expensive as the average amount spent per property under Decent Homes, though far cheaper than previous PassivHaus retrofits.

David Williams, Deputy Chief Executive of Eastlands Homes, said, "There is no getting away fromt he fact that it's expensive, but the maisonettes are the poorest in our housing stock and we would have had to do considerable work to get the homes up to Decent Homes standard anyway."

Casey is delighted to be working with Consultants, R-Gen Developments, who are overseeing the scheme, 2E Architects, and Simon Fenton and Partners to deliver the scheme over a 35 week period.

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