12 Hill Court, St Mark S Hill, Surbiton, KT6 4LW

12 Hill Court is a two-bedroom semi-detached house in Surbiton (KT6 4LW). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1930-1949 and council tax band C. At 75 m² this is the 2nd smallest of 7 units on EPC record in the building, where floor areas span 69–103 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (August 2018) shows a C (score 73). When first surveyed in August 2009 the rating was F, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Very Poor to Poor and main heating went from Very Poor to Good. The recommended improvements would push it to B (score 81).

Held since November 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1999–2007, sale prices on this property compounded at 11.1% per year. Today's modelled estimate of £438,000 is 46% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£372/sq ft) was about 56.8% above the typical sold price in the postcode. At 75 m² it's 16.7% smaller than the typical home in the postcode (90 m² median across 22 EPCs).