Berkeley House, Flat 1, Westgate Avenue, Bolton, BL1 4RF

Berkeley House is a detached house in Bolton (BL1 4RF). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1967-1975 and council tax band A. At 36 m² this is the smallest unit on EPC record across Berkeley House (36–49 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (41 versus a best of 68). The latest certificate (February 2021) shows an E (score 41), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since September 2010. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity.

Across 2003–2019, sale prices on this property compounded at 1.7% per year. Today's modelled estimate of £115,000 sits 130% above the 2019 sale of £50,000. On a £-per-square-foot basis, the last sale (£129/sq ft) was about 45.8% above the typical sold price in the postcode. At 36 m² it's 21.7% smaller than the typical home in the postcode (46 m² median across 81 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Sold December 2019 for £50,000.