Flat 3, 27 Powis Square, London, W11 2AZ

Flat 3 is a mid-terrace house in London (W11 2AZ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1900-1929 and council tax band E. At 56 m² this is the smallest unit on EPC record across the building (56–91 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (February 2026) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since November 2008. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 77). This certificate was lodged in the last six months, so the rating reflects current condition.

On a £-per-square-foot basis, the last sale (£1,659/sq ft) was about 25.1% above the typical sold price in the postcode. Last changed hands 10 years ago, in March 2016. At 56 m² it's 15.2% smaller than the typical home in the postcode (66 m² median across 46 EPCs).