65f, Belsize Park Gardens, London, NW3 4JN

65f is a semi-detached house in London (NW3 4JN). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to before 1900 and council tax band E. At 57 m² this is the 4th smallest of 23 units on EPC record in the building, where floor areas span 47–129 m². The building's EPC ratings span G to C across 23 units on file. The latest certificate (September 2019) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 76). Main heating runs on electricity.

At 57 m² it sits well below the postcode median (89 m² across 36 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£1,011/sq ft) was about 32.6% above the typical sold price in the postcode. Last sale on file: £620,000 in June 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.