11a, Albany Avenue, Westcliff On Sea, SS0 7AQ

11a is a detached house in Westcliff On Sea (SS0 7AQ). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1900-1929 and council tax band A. At 43 m² this is the smallest unit on EPC record across the building (43–109 m²). The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (November 2010) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it C (January 2009); the latest reading is 2 bands lower. Between certificates, roof efficiency dropped from Average to Very Poor. The recommended improvements would push it to D (score 66). The latest certificate is from November 2010, so improvements made since then won't be reflected.

Untraded for 27 years, with the last transfer in October 1999. Across 1998–1999, sale prices on this property compounded at 5.7% per year. Today's modelled estimate of £151,000 sits 331.5% above the 1999 sale of £34,995. On a £-per-square-foot basis, the last sale (£76/sq ft) was about 44.8% below the postcode norm. At 43 m² it sits well below the postcode median (95 m² across 25 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).