131a, West Wycombe Road, High Wycombe, HP12 3AB

131a is a one-bedroom semi-detached house in High Wycombe (HP12 3AB). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (April 2019) shows an E (score 46), 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, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Poor; while lighting dropped from Good to Average and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity. At 49 m² this is the 27th smallest of 52 units on EPC record in the building, where floor areas span 27–126 m². The building's EPC ratings span F to C across 52 units on file.

Last sale on file: £132,500 in April 2020. Across the public record there are 4 sales, relatively high churn for a single property. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). Across 1999–2020, sale prices on this property compounded at 5% per year. Today's modelled estimate of £155,000 is 17% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 32.7% above the typical sold price in the postcode.