Ospreys, Flat 10, 240 Leigh Road, Leigh On Sea, SS9 1BX

Ospreys is a one-bedroom end-of-terrace house in Leigh On Sea (SS9 1BX). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 1983-1990. At 46 m² this is the 4th smallest of 14 units on EPC record in Ospreys, where floor areas span 39–77 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (January 2015) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (April 2009); the latest reading is one band lower. Between certificates, hot-water efficiency went from Poor to Average and main heating went from Poor to Average; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. The latest certificate is from January 2015, so improvements made since then won't be reflected.

Held since January 2001 — that's 25 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 £204,000 sits 213.8% above the 2001 sale of £65,000. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 45.1% below the postcode norm.