Flat A, 23 Belsize Square, London, NW3 4HU

Flat A is an end-of-terrace house in London (NW3 4HU). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (April 2025) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good. The recommended improvements would push it to C (score 79).

Today's modelled estimate of £703,000 is 19.2% below the 2021 sale of £870,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£1,107/sq ft) was about 112.3% above the typical sold price in the postcode. Most recent transfer: March 2021 at £870,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.