537a, Hertford Road, Enfield, EN3 5UQ

537a is a two-bedroom end-of-terrace house in Enfield (EN3 5UQ). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1930-1949 and council tax band B. At 59 m² this is the 14th smallest of 17 units on EPC record in the building, where floor areas span 22–111 m². The building's EPC ratings span E to C across 17 units on file. The latest certificate (February 2018) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2017. The recommended improvements would push it to C (score 73).

Held since May 2006 — that's 20 years off the open market, well above the local norm. At 59 m² it's 29.7% larger than the typical home in the postcode (46 m² median across 16 EPCs). Across 1999–2006, sale prices on this property compounded at 17.9% per year. Today's modelled estimate of £554,000 is 19.7% above the 2006 sale price. On a £-per-square-foot basis, the last sale (£729/sq ft) was about 188.3% above the typical sold price in the postcode.