35a, Tintern Avenue, Westcliff On Sea, SS0 9QJ

35a is an end-of-terrace house in Westcliff On Sea (SS0 9QJ). It has a recorded floor area of 69 m² (around 743 sq ft) and construction records dating it to 1900-1929. The latest certificate (January 2022) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in January 2012 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Poor; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 76). At 69 m² this is the 7th smallest of 32 units on EPC record in the building, where floor areas span 35–156 m². The building's EPC ratings span F to C across 32 units on file.

Sold November 2022 for £212,500. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1999–2022, sale prices on this property compounded at 7% per year. On a £-per-square-foot basis, the last sale (£286/sq ft) was about 92.9% above the typical sold price in the postcode.