9b, Mildmay Grove North, London, N1 4RH

9b is an end-of-terrace house in London (N1 4RH). It has a recorded floor area of 30 m² (around 323 sq ft) and construction records dating it to 1930-1949. At 30 m² this is the smallest unit on EPC record across the building (30–88 m²). The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (32 versus a best of 74). The latest certificate (December 2014) shows an F (score 32), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 62), a 2-band jump. Main heating runs on lpg. The latest certificate is from December 2014, so improvements made since then won't be reflected.

At 30 m² it sits well below the postcode median (79 m² across 31 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. One planning record on file: an extension approved in 2025. Past consents include an extension and new windows, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£1,119/sq ft) was about 122.1% above the typical sold price in the postcode. Most recent transfer: September 2023 at £361,250.