15b, Thorold Road, London, N22 8YE

15b is a mid-terrace house in London (N22 8YE). It has a recorded floor area of 73 m² (around 786 sq ft) and construction records dating it to before 1900. At 73 m² this is the 9th smallest of 16 units on EPC record in the building, where floor areas span 14–119 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (August 2025) shows a C (score 76), near the top of the C band. The rating has held steady at C across 5 certificates since April 2016. Between certificates, wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average.

Held since September 2005 — that's 21 years off the open market, well above the local norm. Across 1997–2005, sale prices on this property compounded at 13.9% per year. Today's modelled estimate of £436,000 sits 181.3% above the 2005 sale of £155,000. On a £-per-square-foot basis, the last sale (£197/sq ft) was about 47.9% below the postcode norm.