23a, Anerley Road, Westcliff On Sea, SS0 7HJ

23a is a two-bedroom semi-detached house in Westcliff On Sea (SS0 7HJ). It has a recorded floor area of 49 m² (around 525 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (October 2010) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 66). The latest certificate is from October 2010, so improvements made since then won't be reflected. At 49 m² this is the 31st smallest of 61 units on EPC record in the building, where floor areas span 25–273 m². The building's EPC ratings span F to C across 61 units on file.

Held since November 2000 — that's 26 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £175,000 sits 272.3% above the 2000 sale of £47,000. On a £-per-square-foot basis, the last sale (£90/sq ft) was about 50.4% below the postcode norm.