Flat 3, 115 Avenell Road, London, N5 1BH

Flat 3 is a mid-terrace house in London (N5 1BH). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1900-1929 and council tax band D. At 39 m² this is the smallest unit on EPC record across the building (39–46 m²). The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (November 2019) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it B (September 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Average to Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75).

At 39 m² it sits well below the postcode median (65 m² across 27 EPCs), making it one of the more compact homes locally. Across 2009–2020, sale prices on this property compounded at 4.5% per year. On a £-per-square-foot basis, the last sale (£929/sq ft) was about 23.1% above the typical sold price in the postcode. Most recent transfer: February 2020 at £390,000.