15 Valley Grove, Coundon Grange, Bishop Auckland, DL14 8XE

15 Valley Grove is a three-bedroom mid-terrace house in Coundon Grange, Bishop Auckland, Bishop Auckland (DL14 8XE). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (September 2017) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in October 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Very Good to Very Poor. The recommended improvements would push it to C (score 79). The home occupies a cul-de-sac position.

At 78 m² it's 18.8% smaller than the typical home in the postcode (96 m² median across 11 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £106,000 sits 130.4% above the 2017 sale of £46,000. On a £-per-square-foot basis, the last sale (£55/sq ft) was about 36.8% above the typical sold price in the postcode. Last sold in November 2017, so it's been off the market for around 9 years.