1a, Avondale Road, Chesterfield, S40 4TF

1a is a seven-bedroom detached house in Chesterfield (S40 4TF). It has a recorded floor area of 144 m² (around 1553 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (June 2011) shows an F (score 25), near the bottom of the EPC scale. When first surveyed in February 2010 the rating was G, the property has climbed 1 band since. Between certificates, main heating went from Average to Good. The recommended improvements would push it to E (score 40). The latest certificate is from June 2011, so improvements made since then won't be reflected. At 144 m² this is the 23rd smallest of 32 units on EPC record in the building, where floor areas span 58–330 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (25 versus a best of 84). Other recorded features include attached land beyond the plot. Period features are noted in the property record. Our model identifies extension potential, subject to local planning policy.

At 144 m² it's 15.4% larger than the typical home in the postcode (125 m² median across 31 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 7 bedrooms is on the larger side for this postcode, where 3 is the typical count. Today's modelled estimate of £408,000 is 32.7% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 31.6% above the typical sold price in the postcode. Last sold in July 2013, so it's been off the market for around 13 years.