51a, Finchley Road, Westcliff On Sea, SS0 8AD

51a is a three-bedroom mid-terrace house in Westcliff On Sea (SS0 8AD). It has a recorded floor area of 114 m² (around 1227 sq ft) and construction records dating it to 1900-1929. At 114 m² this is the 47th smallest of 54 units on EPC record in the building, where floor areas span 34–174 m². The building's EPC ratings span E to C, with this unit at the bottom. Other recorded features include a loft. The latest certificate (May 2022) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (March 2011); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good. The recommended improvements would lift it to C (score 79), a 2-band jump.

At 114 m² the property is well over the postcode median (68 m² across 53 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Sold February 2020 for £238,000. Across the public record there are 4 sales, relatively high churn for a single property. Across 1999–2020, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £282,000 is 18.5% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£194/sq ft) was about 41.3% above the typical sold price in the postcode.