24b, Spring Grove Road, Hounslow, TW3 4BJ

24b is a mid-terrace house in Hounslow (TW3 4BJ). It has a recorded floor area of 32 m² (around 344 sq ft), construction records dating it to 1930-1949 and council tax band C. At 32 m² this is the smallest unit on EPC record across the building (32–150 m²). The building's EPC ratings span E to C across 17 units on file. The latest certificate (July 2025) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (March 2011); the latest reading is one band lower. Between certificates, roof efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 78).

Held since August 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 £220,000 sits 1000% above the 1996 sale of £20,000. On a £-per-square-foot basis, the last sale (£58/sq ft) was about 78.1% below the postcode norm. At 32 m² it sits well below the postcode median (71 m² across 16 EPCs), making it one of the more compact homes locally.