Flat 15, 12 Skerne Road, Kingston Upon Thames, KT2 5AD

Flat 15 is an end-of-terrace house in Kingston Upon Thames (KT2 5AD). It has a recorded floor area of 45 m² (around 481 sq ft) and council tax band E. At 45 m² this is the 13th smallest of 92 units on EPC record in the building, where floor areas span 39–100 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (October 2011) shows a C (score 80), near the top of the C band. Earlier certificates rated it B (April 2011); the latest reading is one band lower. Between certificates, window efficiency went from Good to Very Good; while wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The latest certificate is from October 2011, so improvements made since then won't be reflected.

Held since April 2011 — that's 15 years off the open market, well above the local norm. At 45 m² it's 29% smaller than the typical home in the postcode (63 m² median across 91 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). On a £-per-square-foot basis, the last sale (£675/sq ft) was about 45.4% above the typical sold price in the postcode.