Duncton Mill House, Dye House Lane, Duncton, Petworth, GU28 0LF

Duncton Mill House is a detached house in Duncton, Petworth, Petworth (GU28 0LF). It has a recorded floor area of 363 m² (around 3907 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (October 2021) shows an E (score 52), well below the UK norm with real room to improve. When first surveyed in October 2009 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Very Poor to Poor and hot-water efficiency went from Average to Good; while main heating dropped from Average to Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity.

Untraded for 25 years, with the last transfer in September 2001. At 363 m² the property is well over the postcode median (90 m² across 9 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £3,644,000 sits 128.9% above the 2001 sale of £1,592,000. On a £-per-square-foot basis, the last sale (£407/sq ft) was about 226.3% above the typical sold price in the postcode. 28 planning records sit against the property, 13 approved, 14 refused. Past consents include an extension, meaningful when judging how the property has evolved.