10 Windmill Street, Brill, Aylesbury, HP18 9SZ

10 Windmill Street is a four-bedroom detached house in Brill, Aylesbury, Aylesbury (HP18 9SZ). It has a recorded floor area of 146 m² (around 1572 sq ft), construction records dating it to before 1900 and council tax band F. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (August 2017) shows an F (score 38), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since February 2013. Between certificates, roof efficiency went from Poor to Good; while wall efficiency dropped from Poor to Very Poor and lighting dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 82), a 4-band jump. Main heating runs on electricity.

At 146 m² the property is well over the postcode median (94 m² across 12 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £779,000 is 11.3% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£445/sq ft) was about 36.3% above the typical sold price in the postcode. Sold August 2020 for £700,000. One historical planning record sits against the property in 2003.