31 Branksome Terrace, Darlington, DL3 6AZ

31 Branksome Terrace is a two-bedroom mid-terrace house in Darlington (DL3 6AZ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (July 2016) shows a D (score 55), a step below the typical UK home. When first surveyed in June 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Good and main heating went from Average to Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 89), a 2-band jump. The latest certificate is from July 2016, so improvements made since then won't be reflected.

Held since July 2004 — that's 22 years off the open market, well above the local norm. Across 2000–2004, sale prices on this property compounded at 27% per year. Today's modelled estimate of £108,000 sits 54.4% above the 2004 sale of £69,950. On a £-per-square-foot basis, the last sale (£90/sq ft) was about 29.5% above the typical sold price in the postcode.