Flat 3, 8 Mattison Road, London, N4 1BD

Flat 3 is a semi-detached house in London (N4 1BD). It has a recorded floor area of 21 m² (around 226 sq ft), construction records dating it to before 1900 and council tax band C. At 21 m² this is the smallest unit on EPC record across the building (21–65 m²). The building's EPC ratings span E to C across 9 units on file. The latest certificate (December 2019) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it B (November 2008); the latest reading is 2 bands lower. Between certificates, window efficiency dropped from Good to Average and lighting dropped from Very Good to Very Poor. The recommended improvements would push it to C (score 77).

At 21 m² it sits well below the postcode median (63 m² across 36 EPCs), making it one of the more compact homes locally. Across 1995–2011, sale prices on this property compounded at 8.9% per year. Today's modelled estimate of £374,000 is 36% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£1,217/sq ft) was about 195.1% above the typical sold price in the postcode. 15 years since the last transfer (November 2011).