Aspen House, Flat 12, 10 Forest Road, Richmond, TW9 3BY

Aspen House is a one-bedroom end-of-terrace house in Richmond (TW9 3BY). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1900-1929. The latest certificate (February 2019) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2009); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and main heating dropped from Average to Poor. The recommended improvements would push it to C (score 73). Main heating runs on electricity. At 47 m² this is the 8th smallest of 24 units on EPC record in Aspen House, where floor areas span 35–82 m². The building's EPC ratings span E to C across 24 units on file.

It hasn't traded since March 1995, a hold of 31 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £405,000 sits 415.7% above the 1995 sale of £78,541.