St. Barnabas Street

Will South certified these two properties to the EnerPHit standard as part of a refurbishment of the whole terrace. The other two properties were certified to BREEAM non-domestic refurbishment as an exercise to compare the standards.

The site is in a prestigious Westminster conservation area and so the external appearance of the terrace had to remain unchanged. We gave specialist advice on achieving high performance internal wall insulation whilst not putting the existing building fabric at risk. The homes also have triple glazed secondary glazing to the front windows, maintaining the external façade’s character while maximising thermal performance.

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