Flat 6, 15 Bolton Road, Hounslow, London, W4 3TE

Flat 6 is a two-bedroom semi-detached house in Hounslow, London, London (W4 3TE). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1900-1929 and council tax band C. At 53 m² this is the smallest unit on EPC record across the building (53–77 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 (61 versus a best of 79). The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal. The latest certificate (May 2021) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2009. Between certificates, wall efficiency went from Very Poor to Poor; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 70).

Across 2010–2021, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£862/sq ft) was about 110.8% above the typical sold price in the postcode. Sold September 2021 for £492,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.