33a, High Street, Walton On Thames, KT12 1DG

33a is a mid-terrace house in Walton On Thames (KT12 1DG). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (June 2020) shows an E (score 54), well below the UK norm with real room to improve. When first surveyed in December 2008 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Good; while main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 79), a 2-band jump. Main heating runs on electricity. At 39 m² this is the 2nd smallest of 10 units on EPC record in the building, where floor areas span 33–95 m². The building's EPC ratings span F to C across 10 units on file.

Across 2010–2018, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £234,000 is 13.3% below the 2018 sale of £270,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£643/sq ft) was about 163.1% above the typical sold price in the postcode. At 39 m² it sits well below the postcode median (78 m² across 9 EPCs), making it one of the more compact homes locally. Last changed hands 8 years ago, in January 2018.