Acqua House, Flat 2, 41 Melliss Avenue, Richmond, TW9 4BY

Acqua House is an end-of-terrace house in Richmond (TW9 4BY). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1996-2002 and council tax band G. At 87 m² this is the 20th smallest of 46 units on EPC record in Acqua House, where floor areas span 55–153 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (August 2019) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2009); the latest reading is one band lower. Between certificates, lighting went from Poor to Average; while window efficiency dropped from Good to Average and main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 70). Main heating runs on electricity.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2003–2017, sale prices on this property compounded at 2% per year. On a £-per-square-foot basis, the last sale (£731/sq ft) was about 40.9% above the typical sold price in the postcode. Last sold in July 2017, so it's been off the market for around 9 years.