12a, Windsor Road, Doncaster, DN2 5BS

12a is a nine-bedroom mid-terrace house in Doncaster (DN2 5BS). It has a recorded floor area of 230 m² (around 2476 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (April 2016) shows an E (score 51), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2008. Between certificates, wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 76), a 2-band jump. The latest certificate is from April 2016, so improvements made since then won't be reflected. Period features are noted in the property record.

It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2001–2009, sale prices on this property compounded at 11.1% per year. Today's modelled estimate of £320,000 sits 73% above the 2009 sale of £185,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 18.7% below the postcode norm. At 230 m² it's 15% larger than the typical home in the postcode (200 m² median across 26 EPCs). 9 bedrooms is on the larger side for this postcode, where 4 is the typical count. One historical planning record sits against the property in 2007.