Dartmouth House, Flat 16, Royal Quarter, Seven Kings Way, Kingston Upon Thames, KT2 5BJ

Dartmouth House is a one-bedroom mid-terrace house in Kingston Upon Thames (KT2 5BJ). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 2003-2006 and council tax band D. At 40 m² this is the smallest unit on EPC record across Dartmouth House (40–129 m²). The building's EPC ratings span E to B, with this unit at the top. The latest certificate (September 2019) returns a B (score 81), comfortably above the UK average. When first surveyed in March 2009 the rating was C, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. Main heating runs on electricity.

Untraded for 18 years, with the last transfer in July 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 40 m² it sits well below the postcode median (65 m² across 60 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Across 2005–2008, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £314,000 is 25.6% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£581/sq ft) was about 25% above the typical sold price in the postcode.