21 Courtney Park Road, Langdon Hills, Basildon, SS16 6RE

21 Courtney Park Road is a two-bedroom detached house in Langdon Hills, Basildon, Basildon (SS16 6RE). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1983-1990 and council tax band B. At 64 m² this is the 34th smallest of 44 units on EPC record in the building, where floor areas span 37–74 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (September 2021) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2011); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity.

Untraded for 24 years, with the last transfer in May 2002. Today's modelled estimate of £238,000 sits 133.3% above the 2002 sale of £102,000. On a £-per-square-foot basis, the last sale (£148/sq ft) was about 18.2% below the postcode norm. At 64 m² it's 18.5% larger than the typical home in the postcode (54 m² median across 43 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).