The Flinthouse, Common Road, Flackwell Heath, High Wycombe, HP10 9NS

The Flinthouse is a four-bedroom detached house in Flackwell Heath, High Wycombe, High Wycombe (HP10 9NS). It has a recorded floor area of 198 m² (around 2131 sq ft) and construction records dating it to 1991-1995. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Other recorded features include a conservatory. The latest certificate (June 2020) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2012. Between certificates, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 75).

At 198 m² the property is well over the postcode median (83 m² across 5 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Across 1995–2020, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £820,000 is 13.9% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£338/sq ft) was about 15.3% below the postcode norm. Last sale on file: £720,000 in October 2020. One historical planning record sits against the property in 2009.