Keys Farm, Doncaster Road, Finningley, Doncaster, DN9 3BN

Keys Farm is a three-bedroom detached house in Finningley, Doncaster, Doncaster (DN9 3BN). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (March 2015) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in September 2009 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and roof efficiency went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on oil. The latest certificate is from March 2015, so improvements made since then won't be reflected. Other recorded features include attached land beyond the plot. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

At 137 m² the property is well over the postcode median (95 m² across 6 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). One planning record on file: an extension approved in 2015. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Across 2010–2015, sale prices on this property compounded at 21.5% per year. Today's modelled estimate of £321,000 is 22.1% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£178/sq ft) was about 44.3% above the typical sold price in the postcode. On the market in April 2015 and unlisted since — roughly 11 years.