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

23 Hill Court is a three-bedroom semi-detached house in Surbiton (KT6 4LW). It has a recorded floor area of 101 m² (around 1089 sq ft), construction records dating it to 1930-1949 and council tax band D. At 101 m² this is the 6th 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 bottom. On EPC score it ranks last in the building (51 versus a best of 76). The latest certificate (September 2011) shows an E (score 51), well below the UK norm with real room to improve. The latest certificate is from September 2011, so improvements made since then won't be reflected.

At 101 m² it's 17% larger than the typical home in the postcode (87 m² median across 22 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2005–2020, sale prices on this property compounded at 6.2% per year. On a £-per-square-foot basis, the last sale (£588/sq ft) was about 148% above the typical sold price in the postcode. Most recent transfer: October 2020 at £640,000.