34a, Onslow Road, Richmond, TW10 6QE

34a is a one-bedroom semi-detached house in Richmond (TW10 6QE). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band D. Tenure is freehold. The latest certificate (December 2023) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since February 2009. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Poor. The recommended improvements would push it to C (score 73). At 40 m² this is the 3rd smallest of 19 units on EPC record in the building, where floor areas span 26–305 m². The building's EPC ratings span E to C across 19 units on file.

A recent sale: £438,000 in March 2025. At 40 m² it sits well below the postcode median (82 m² across 18 EPCs), making it one of the more compact homes locally. Across 2020–2025, sale prices on this property compounded at 1% per year. On a £-per-square-foot basis, the last sale (£1,017/sq ft) was about 109.3% above the typical sold price in the postcode.