Flat 1, 21 Denise Drive, Harborne, Birmingham, B17 0BN

Flat 1 is a two-bedroom semi-detached house in Harborne, Birmingham, Birmingham (B17 0BN). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1967-1975 and council tax band B. At 55 m² this is the smallest unit on EPC record across the building (55–55 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (45 versus a best of 64). The home occupies a cul-de-sac position. The latest certificate (October 2013) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since June 2010. Between certificates, hot-water efficiency went from Very Poor to Poor, lighting went from Average to Good and main heating went from Poor to Average. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity. The latest certificate is from October 2013, so improvements made since then won't be reflected.

On the market in April 2018 and unlisted since — roughly 8 years. At 55 m² it's 27.2% smaller than the typical home in the postcode (76 m² median across 26 EPCs). Across 2008–2018, sale prices on this property compounded at 1.7% per year. Today's modelled estimate of £155,000 is 14.8% above the 2018 sale price.