21a, Chesterford Gardens, Camden, London, NW3 7DD

21a is a detached house in Camden, London, London (NW3 7DD). It has a recorded floor area of 84 m² (around 904 sq ft) and construction records dating it to 1900-1929. The latest certificate (September 2021) shows a D (score 56), a step below the typical UK home. When first surveyed in May 2009 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 79). At 84 m² this is the 2nd smallest of 12 units on EPC record in the building, where floor areas span 78–449 m². The building's EPC ratings span E to B across 12 units on file.

Held since March 2004 — that's 22 years off the open market, well above the local norm. Across 2000–2004, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £1,646,000 sits 69.4% above the 2004 sale of £971,500. On a £-per-square-foot basis, the last sale (£1,074/sq ft) was about 28.3% above the typical sold price in the postcode. At 84 m² it sits well below the postcode median (124 m² across 17 EPCs), making it one of the more compact homes locally.