23a, Belsize Crescent, Camden, London, NW3 5QY

23a is a mid-terrace house in Camden, London, London (NW3 5QY). It has a recorded floor area of 77 m² (around 824 sq ft) and construction records dating it to before 1900. At 77 m² this is the 14th smallest of 28 units on EPC record in the building, where floor areas span 30–386 m². The building's EPC ratings span F to C across 28 units on file. The latest certificate (April 2010) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75). The latest certificate is from April 2010, so improvements made since then won't be reflected.

Sold March 2021 for £1,042,500. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1999–2021, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£1,265/sq ft) was about 153.5% above the typical sold price in the postcode. One historical planning record sits against the property in 2014.