3 Cardwell Terrace, Islington, London, N7 0NH

3 Cardwell Terrace is a mid-terrace house in Islington, London, London (N7 0NH). It has a recorded floor area of 18 m² (around 194 sq ft) and construction records dating it to 1996-2002. At 18 m² this is the smallest unit on EPC record across the building (18–249 m²). The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (June 2019) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it C (November 2018); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to D (score 68). Main heating runs on electricity.

Untraded for 31 years, with the last transfer in February 1995. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £409,000 sits 309% above the 1995 sale of £100,000. At 18 m² it sits well below the postcode median (43 m² across 18 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).