21 Waterville Drive, Vange, Basildon, SS16 4TZ

21 Waterville Drive is a two-bedroom semi-detached house in Vange, Basildon, Basildon (SS16 4TZ). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1983-1990 and council tax band B. At 65 m² this is the 41st smallest of 42 units on EPC record in the building, where floor areas span 30–68 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (April 2021) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2009); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Poor to Average and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity.

Held since March 2001 — that's 25 years off the open market, well above the local norm. At 65 m² the property is well over the postcode median (48 m² across 41 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1997–2001, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £178,000 sits 239% above the 2001 sale of £52,500. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 49.7% below the postcode norm.