Alder House, Flat 4, Westerham Road, Keston, BR2 6HE

Alder House is a two-bedroom semi-detached house in Keston (BR2 6HE). It has a recorded floor area of 94 m² (around 1012 sq ft). The latest certificate (March 2017) returns a B (score 81), comfortably above the UK average. At 94 m² this is the 3rd smallest of 6 units on EPC record in Alder House, where floor areas span 70–142 m². The building's EPC ratings span C to B, with this unit at the top. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal.

At 94 m² it's 23% smaller than the typical home in the postcode (122 m² median across 19 EPCs). Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). On the market in July 2017 and unlisted since — roughly 9 years.