4a, Clifford Avenue, Richmond Upon Thames, London, SW14 7BS

4a is a one-bedroom end-of-terrace house in Richmond Upon Thames, London, London (SW14 7BS). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1900-1929 and council tax band D. At 54 m² this is the smallest unit on EPC record across the building (54–175 m²). The building's EPC ratings span E to C across 9 units on file. The latest certificate (August 2021) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2010. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Very Poor.

It hasn't traded since November 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £346,000 sits 534.9% above the 2002 sale of £54,500. On a £-per-square-foot basis, the last sale (£94/sq ft) was about 57.8% below the postcode norm. At 54 m² it sits well below the postcode median (95 m² across 8 EPCs), making it one of the more compact homes locally.