11a, Cotswold Road, Westcliff On Sea, SS0 8AA

11a is a two-bedroom semi-detached house in Westcliff On Sea (SS0 8AA). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band B. At 72 m² this is the 17th smallest of 39 units on EPC record in the building, where floor areas span 54–184 m². The building's EPC ratings span E to C across 39 units on file. The latest certificate (June 2021) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78).

Held since February 1997 — that's 29 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. Today's modelled estimate of £257,000 sits 634.3% above the 1997 sale of £35,000. On a £-per-square-foot basis, the last sale (£45/sq ft) was about 75.6% below the postcode norm.