45a, The Market, Rosehill, Sutton, SM1 3HE

45a is a mid-terrace house in Sutton (SM1 3HE). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1950-1966 and council tax band C. At 77 m² this is the 7th smallest of 14 units on EPC record in the building, where floor areas span 42–97 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (April 2021) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it C (June 2018); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Poor; while hot-water efficiency dropped from Good to Average and main heating dropped from Good to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity.

Last sale on file: £232,000 in May 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Across 2006–2021, sale prices on this property compounded at 5.1% per year. On a £-per-square-foot basis, the last sale (£280/sq ft) was about 18% above the typical sold price in the postcode.