4 Byron Avenue, Sprotbrough Road, Doncaster, DN5 8ES

4 Byron Avenue is a semi-detached house in Doncaster (DN5 8ES). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (March 2014) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since August 2013. Between certificates, lighting dropped from Very Good to Good. The recommended improvements would lift it to B (score 81), a 3-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.

Held since June 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. Today's modelled estimate of £127,000 sits 95.4% above the 2007 sale of £65,000. On a £-per-square-foot basis, the last sale (£102/sq ft) was about 25.3% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs).