Eastlands Homes have awarded Casey the UK's first large-scale PassivHaus retrofit project to be undertaken in occupied properties.

Eastlands Homes is applying the principles of the PassivHaus to achieve the much lauded EnerPHit Standard, as recognised by the PassivHaus Institute, 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 PassivHaus 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 ventilation 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 a challenge to achieve within an occupied living environment.  Previously, PassivHaus schemes have only been attempted on vacant dwellings or newbuild sites.

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.

The cost of achieving the standard is not significantly that much greater than would be expended on a low energy refurbishment but the benefits to the residents in terms of the quality of breathable air, elimination of condensation, and reduction in fuel costs are immense.

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.