Flat 4, 22 Canning Crescent, London, N22 5SR

Flat 4 is a detached house in London (N22 5SR). It has a recorded floor area of 43 m² (around 463 sq ft) and construction records dating it to 1976-1982. At 43 m² this is the smallest unit on EPC record across the building (43–45 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (50 versus a best of 73). The latest certificate (June 2019) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2008. Between certificates, wall efficiency went from Poor to Average, lighting went from Very Poor to Very Good and main heating went from Poor to Average; while roof efficiency dropped from Average to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on electricity.

At 43 m² it's 21.8% smaller than the typical home in the postcode (55 m² median across 64 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Across 2002–2022, sale prices on this property compounded at 8.2% per year. On a £-per-square-foot basis, the last sale (£637/sq ft) was about 226.4% above the typical sold price in the postcode. Sold September 2022 for £295,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.