11a, Clarence Road, Hounslow, London, W4 3AS

11a is a two-bedroom semi-detached house in Hounslow, London, London (W4 3AS). 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 6th smallest of 19 units on EPC record in the building, where floor areas span 41–149 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (December 2025) shows a C (score 69), just inside the C band. When first surveyed in July 2013 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and lighting went from Poor to Good; while window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.

Held since June 2000 — that's 26 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 £468,000 sits 314.2% above the 2000 sale of £113,000. On a £-per-square-foot basis, the last sale (£178/sq ft) was about 56% below the postcode norm.