12a, Kenton Avenue, Harrow, HA1 2BN

12a is a three-bedroom end-of-terrace house in Harrow (HA1 2BN). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band C. At 88 m² this is the 9th smallest of 12 units on EPC record in the building, where floor areas span 56–170 m². The building's EPC ratings span E to D, with this unit at the top. Period features are noted in the property record. The latest certificate (October 2017) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77).

Held since October 1996 — that's 30 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £447,000 sits 548.3% above the 1996 sale of £68,950. On a £-per-square-foot basis, the last sale (£73/sq ft) was about 73.6% below the postcode norm. At 88 m² it's 15.8% larger than the typical home in the postcode (76 m² median across 11 EPCs).