Flat 5, 41 Eccleston Square, London, SW1V 1PB

Flat 5 is an end-of-terrace house in London (SW1V 1PB). It has a recorded floor area of 22 m² (around 237 sq ft), construction records dating it to 1900-1929 and council tax band C. At 22 m² this is the smallest unit on EPC record across the building (22–72 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 76). The latest certificate (May 2021) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2012. Between certificates, hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity.

At 22 m² it sits well below the postcode median (65 m² across 15 EPCs), making it one of the more compact homes locally. Across 1998–2013, sale prices on this property compounded at 9.8% per year. Today's modelled estimate of £344,000 is 25.1% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£1,161/sq ft) was about 96.7% above the typical sold price in the postcode. Last changed hands 13 years ago, in February 2013.