21 Ferndale Rise, Coal Aston, Dronfield, S18 3BS

21 Ferndale Rise is a four-bedroom detached house in Coal Aston, Dronfield, Dronfield (S18 3BS). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (January 2019) shows a C (score 77), near the top of the C band. When first surveyed in August 2017 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Very Good, window efficiency went from Poor to Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 87).

At 108 m² the property is well over the postcode median (75 m² across 16 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Across 2018–2019, sale prices on this property compounded at 88.6% per year. Today's modelled estimate of £423,000 is 28.2% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£284/sq ft) was about 25.8% above the typical sold price in the postcode. Last sale on file: £330,000 in April 2019.