12 Chalford Flats, Northcroft, Wooburn Green, High Wycombe, HP10 0BS

12 Chalford Flats is a one-bedroom mid-terrace house in Wooburn Green, High Wycombe, High Wycombe (HP10 0BS). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1967-1975 and council tax band C. At 42 m² this is the smallest unit on EPC record across the building (42–65 m²). The building's EPC ratings span E to C across 28 units on file. The latest certificate (June 2013) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2010. Between certificates, hot-water efficiency went from Poor to Average and main heating went from Average to Good. The recommended improvements would push it to C (score 77). The latest certificate is from June 2013, so improvements made since then won't be reflected.

At 42 m² it's 16% smaller than the typical home in the postcode (50 m² median across 27 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). Across 2019–2020, sale prices on this property compounded at 21.8% per year. On a £-per-square-foot basis, the last sale (£487/sq ft) was about 88.7% above the typical sold price in the postcode. Last sale on file: £220,000 in September 2020.