21 Ironstone Drive, Chapeltown, Sheffield, S35 3XZ

21 Ironstone Drive is a four-bedroom detached house in Chapeltown, Sheffield, Sheffield (S35 3XZ). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (October 2015) shows an E (score 49), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2012); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to C (score 79), a 2-band jump. The latest certificate is from October 2015, so improvements made since then won't be reflected.

At 103 m² it's 21.9% larger than the typical home in the postcode (85 m² median across 50 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2001–2015, sale prices on this property compounded at 4.4% per year. Today's modelled estimate of £329,000 sits 56.7% above the 2015 sale of £209,950. On a £-per-square-foot basis, the last sale (£189/sq ft) was about 19.6% above the typical sold price in the postcode. 11 years since the last transfer (August 2015). Across the public record there are 4 sales, relatively high churn for a single property.