21a, Holmdale Road, Camden, London, NW6 1BJ

21a is a mid-terrace house in Camden, London, London (NW6 1BJ). It has a recorded floor area of 35 m² (around 377 sq ft) and construction records dating it to 1930-1949. At 35 m² this is the 2nd smallest of 16 units on EPC record in the building, where floor areas span 22–247 m². The building's EPC ratings span E to B across 16 units on file. The latest certificate (March 2019) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 80). Main heating runs on electricity.

Across 1998–2017, sale prices on this property compounded at 9.6% per year. Today's modelled estimate of £321,000 is 18.7% below the 2017 sale of £395,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£1,048/sq ft) was about 103.5% above the typical sold price in the postcode. At 35 m² it sits well below the postcode median (62 m² across 31 EPCs), making it one of the more compact homes locally. Last sold in March 2017, so it's been off the market for around 9 years. Across the public record there are 4 sales, relatively high churn for a single property.