1a, Clayton Road, Hayes, UB3 1AX

1a is a detached house in Hayes (UB3 1AX). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1900-1929 and council tax band B. At 59 m² this is the 25th smallest of 36 units on EPC record in the building, where floor areas span 35–72 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 87). The latest certificate (January 2015) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 67). The latest certificate is from January 2015, so improvements made since then won't be reflected.

Held since June 1999 — that's 27 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. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £320,000 sits 212.2% above the 1999 sale of £102,500. On a £-per-square-foot basis, the last sale (£161/sq ft) was about 58.3% below the postcode norm.