9a, Brooks Road, Hounslow, London, W4 3BJ

9a is a one-bedroom end-of-terrace house in Hounslow, London, London (W4 3BJ). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1900-1929 and council tax band C. At 65 m² this is the 6th smallest of 9 units on EPC record in the building, where floor areas span 47–168 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 58). The latest certificate (January 2020) shows a C (score 69), just inside the C band. When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average.

Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). Across 2000–2014, sale prices on this property compounded at 2.6% per year. Today's modelled estimate of £531,000 is 15.4% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£657/sq ft) was about 34.4% above the typical sold price in the postcode. 12 years since the last transfer (August 2014).