21 Jack Walker Court, Islington, London, N5 1SG

21 Jack Walker Court is a mid-terrace house in Islington, London, London (N5 1SG). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1976-1982 and council tax band C. At 45 m² this is the 3rd smallest of 25 units on EPC record in the building, where floor areas span 44–107 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (March 2014) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2009. Between certificates, wall efficiency went from Average to Good, window efficiency went from Very Poor to Good and hot-water efficiency went from Poor to Good; while roof efficiency dropped from Poor to Very Poor and lighting dropped from Average to Very Poor. The recommended improvements would push it to C (score 79). The latest certificate is from March 2014, so improvements made since then won't be reflected.

At 45 m² it sits well below the postcode median (66 m² across 24 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs).