50b, Inverness Avenue, Westcliff On Sea, SS0 9DY

50b is an end-of-terrace house in Westcliff On Sea (SS0 9DY). It has a recorded floor area of 52 m² (around 560 sq ft) and construction records dating it to 1900-1929. The latest certificate (February 2021) shows an F (score 25), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 78), a 3-band jump. Main heating runs on electricity. At 52 m² this is the 12th smallest of 61 units on EPC record in the building, where floor areas span 37–177 m². The building's EPC ratings span G to C across 61 units on file.

Held since December 2002 — that's 23 years off the open market, well above the local norm. At 52 m² it's 24.9% smaller than the typical home in the postcode (69 m² median across 60 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2002, sale prices on this property compounded at 27.1% per year. Today's modelled estimate of £153,000 sits 155% above the 2002 sale of £59,995. On a £-per-square-foot basis, the last sale (£107/sq ft) was about 17.9% below the postcode norm. One historical planning record sits against the property in 2023.