3a, Dukes Avenue, Harrow, HA1 1XP

3a is an end-of-terrace house in Harrow (HA1 1XP). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to 1930-1949. At 48 m² this is the smallest unit on EPC record across the building (48–145 m²). The building's EPC ratings span F to C across 18 units on file. The latest certificate (November 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2009. Between certificates, hot-water efficiency dropped from Very Good to Good and lighting dropped from Average to Very Poor. The recommended improvements would push it to C (score 77).

Held since June 1999 — that's 27 years off the open market, well above the local norm. Across 1995–1999, sale prices on this property compounded at 15.2% per year. Today's modelled estimate of £239,000 sits 273.7% above the 1999 sale of £63,950. On a £-per-square-foot basis, the last sale (£124/sq ft) was about 62.1% below the postcode norm. At 48 m² it sits well below the postcode median (100 m² across 17 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion, meaningful when judging how the property has evolved.