283a, Hersham Road, Hersham, Walton On Thames, KT12 5PZ

283a is a one-bedroom end-of-terrace house in Hersham, Walton-On-Thames, Walton On Thames (KT12 5PZ). It has a recorded floor area of 64 m² (around 689 sq ft) and construction records dating it to 1930-1949. The latest certificate (November 2022) shows a C (score 71). When first surveyed in June 2010 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. At 64 m² this is the 5th smallest of 20 units on EPC record in the building, where floor areas span 16–212 m². The building's EPC ratings span F to B across 20 units on file.

Untraded for 18 years, with the last transfer in March 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 64 m² it sits well below the postcode median (99 m² across 19 EPCs), making it one of the more compact homes locally. Across 2001–2008, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £250,000 is 28.2% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£283/sq ft) was about 27.3% below the postcode norm.