3 Union Court, Richmond, TW9 1AA

3 Union Court is a mid-terrace house in Richmond (TW9 1AA). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to before 1900. At 59 m² this is the largest unit on EPC record across the building (24–59 m²). The building's EPC ratings span E to C across 14 units on file. The latest certificate (May 2021) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 3 certificates since July 2009. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on electricity.

At 59 m² the property is well over the postcode median (35 m² across 13 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). One historical planning record sits against the property in 2009.