Flat 3, 21 Bolton Road, Hounslow, London, W4 3TE

Flat 3 is a mid-terrace house in Hounslow, London, London (W4 3TE). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to 1900-1929. At 63 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 55–146 m². The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (69 versus a worst of 60). The latest certificate (May 2023) shows a C (score 69), just inside the C band. When first surveyed in March 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

Across 1997–2023, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £497,000 is 26.4% below the 2023 sale of £675,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£995/sq ft) was about 138.7% above the typical sold price in the postcode. At 63 m² it's 27.3% larger than the typical home in the postcode (50 m² median across 66 EPCs). Sold October 2023 for £675,000.