7 Devana End, Carshalton, SM5 2NL

7 Devana End is a semi-detached house in Carshalton (SM5 2NL). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (November 2023) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 3 certificates since February 2011. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 76), a 3-band jump. Main heating runs on electricity. At 50 m² this is the 4th smallest of 38 units on EPC record in the building, where floor areas span 49–72 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (32 versus a best of 79).

At 50 m² it's 15.3% smaller than the typical home in the postcode (59 m² median across 37 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. A recent sale: £209,000 in June 2025. Across 1998–2025, sale prices on this property compounded at 5.3% per year. Today's modelled estimate of £246,000 is 17.7% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£388/sq ft) was about 62.9% above the typical sold price in the postcode.