20 Chester Mews, Sunderland, SR4 7HX

20 Chester Mews is a two-bedroom mid-terrace house in Sunderland (SR4 7HX). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (June 2016) shows an E (score 40), well below the UK norm with real room to improve. Earlier certificates rated it D (February 2010); the latest reading is one band lower. Between certificates, main heating went from Average to Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 83), a 3-band jump. The latest certificate is from June 2016, so improvements made since then won't be reflected.

Held since September 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 58 m² it's 18.4% larger than the typical home in the postcode (49 m² median across 28 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Across 2002–2007, sale prices on this property compounded at 12.2% per year. Today's modelled estimate of £114,000 is 16.3% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£157/sq ft) was about 52.1% above the typical sold price in the postcode.