25 Bonners Raff, Chandlers Road, Sunderland, SR6 0AD

25 Bonners Raff is a mid-terrace house in Sunderland (SR6 0AD). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (July 2021) shows a C (score 70). When first surveyed in September 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Very Poor. Main heating runs on electricity. At 72 m² this is the 14th smallest of 54 units on EPC record in the building, where floor areas span 41–171 m². The building's EPC ratings span E to A across 54 units on file.

Across 2008–2015, sale prices on this property compounded at -10.8% per year. Today's modelled estimate of £137,000 sits 109.2% above the 2015 sale of £65,500. On a £-per-square-foot basis, the last sale (£85/sq ft) was about 38.5% below the postcode norm. On the market in April 2015 and unlisted since — roughly 11 years. At 72 m² it's 15.5% smaller than the typical home in the postcode (85 m² median across 53 EPCs).