11a, Boundary Road, London, N22 6AS

11a is a mid-terrace house in London (N22 6AS). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (November 2014) shows a D (score 57), a step below the typical UK home. When first surveyed in December 2013 the rating was E, the property has climbed 1 band since. Between certificates, lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 71). The latest certificate is from November 2014, so improvements made since then won't be reflected. At 54 m² this is the 6th smallest of 10 units on EPC record in the building, where floor areas span 20–71 m². The building's EPC ratings span E to C across 10 units on file.

Across 1995–2021, sale prices on this property compounded at 10.1% per year. On a £-per-square-foot basis, the last sale (£958/sq ft) was about 120.2% above the typical sold price in the postcode. At 54 m² it's 23.9% smaller than the typical home in the postcode (71 m² median across 47 EPCs). Sold September 2021 for £557,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.