439a, Alexandra Avenue, Harrow, HA2 9SE

439a is a mid-terrace house in Harrow (HA2 9SE). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1900-1929 and council tax band C. At 29 m² this is the 2nd smallest of 4 units on EPC record in 439a, where floor areas span 27–33 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (October 2017) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since October 2008. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Very Poor and main heating dropped from Very Good to Very Poor. The recommended improvements would push it to D (score 58). Main heating runs on electricity.

Across 1996–2019, sale prices on this property compounded at 6.5% per year. Today's modelled estimate of £252,000 is 28% below the 2019 sale of £350,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,121/sq ft) was about 164% above the typical sold price in the postcode. At 29 m² it sits well below the postcode median (52 m² across 28 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Last sale on file: £350,000 in December 2019. Across the public record there are 6 sales, relatively high churn for a single property. One planning record on file: subdivision approved in 2019. Past consents include subdivision, meaningful when judging how the property has evolved.