333a, Upper Richmond Road West, Richmond Upon Thames, London, SW14 8QR

333a is a two-bedroom mid-terrace house in Richmond Upon Thames, London, London (SW14 8QR). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band C. At 72 m² this is the 11th smallest of 17 units on EPC record in the building, where floor areas span 28–105 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 54). The latest certificate (April 2022) shows a C (score 78), near the top of the C band. When first surveyed in January 2009 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Good and hot-water efficiency went from Very Poor to Good.

Across 2010–2018, sale prices on this property compounded at 6.2% per year. On a £-per-square-foot basis, the last sale (£645/sq ft) was about 75.9% above the typical sold price in the postcode. Sold December 2018 for £500,000.