8a, Haydock Avenue, Northolt, UB5 4AL

8a is a semi-detached house in Northolt (UB5 4AL). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1930-1949 and council tax band C. At 65 m² this is the 2nd smallest of 7 units on EPC record in the building, where floor areas span 56–87 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (62 versus a best of 77). The latest certificate (January 2018) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (April 2011); the latest reading is one band lower. Between certificates, hot-water efficiency went from Average to Good, lighting went from Poor to Very Good and main heating went from Average to Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Good to Very Poor.

One planning record on file: an extension approved in 2024. Past consents include an extension, meaningful when judging how the property has evolved. Across 2011–2023, sale prices on this property compounded at 2.3% per year. Today's modelled estimate of £293,000 is 30.2% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£322/sq ft) was about 45.8% above the typical sold price in the postcode. At 65 m² it's 20.7% smaller than the typical home in the postcode (82 m² median across 6 EPCs). Most recent transfer: November 2023 at £225,000.