20 Grove Court, Southbourne Grove, Westcliff On Sea, SS0 0AW

20 Grove Court is a semi-detached house in Westcliff On Sea (SS0 0AW). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (October 2021) shows a D (score 55), a step below the typical UK home. When first surveyed in March 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Poor; while main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 77). Main heating runs on electricity. At 55 m² this is the 8th smallest of 30 units on EPC record in the building, where floor areas span 38–81 m². The building's EPC ratings span G to B across 30 units on file.

Sold March 2022 for £214,000. 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 1998–2022, sale prices on this property compounded at 7% per year. On a £-per-square-foot basis, the last sale (£361/sq ft) was about 98% above the typical sold price in the postcode.