Third Floor Flat, 26 Belsize Square, London, NW3 4HU

Third Floor Flat is an end-of-terrace house in London (NW3 4HU). It has a recorded floor area of 45 m² (around 484 sq ft) and construction records dating it to 1900-1929. The latest certificate (April 2021) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Good. The recommended improvements would lift it to C (score 69), a 2-band jump.

Across 2013–2019, sale prices on this property compounded at 15.7% per year. Today's modelled estimate of £1,646,000 is 19.1% below the 2019 sale of £2,034,280, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£4,200/sq ft) was about 835% above the typical sold price in the postcode. At 45 m² it sits well below the postcode median (73 m² across 23 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Sold December 2019 for £2,034,280.