18 Rushen Walk, Carshalton, SM5 1PY

18 Rushen Walk is a mid-terrace house in Carshalton (SM5 1PY). It has a recorded floor area of 13 m² (around 140 sq ft), construction records dating it to 1950-1966 and council tax band C. At 13 m² this is the smallest unit on EPC record across the building (13–84 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (May 2024) shows a C (score 75), near the top of the C band. When first surveyed in June 2023 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Very Poor. Main heating runs on electricity.

Across 2024–2024, sale prices on this property compounded at -12.5% per year. Today's modelled estimate of £216,000 is 28.5% below the 2024 sale of £302,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,158/sq ft) was about 666.2% above the typical sold price in the postcode. At 13 m² it sits well below the postcode median (61 m² across 14 EPCs), making it one of the more compact homes locally. Last sale on file: £302,000 in January 2024.