7 Alexander House, High Street, Corsham, SN13 0HQ

7 Alexander House is a one-bedroom detached house in Corsham (SN13 0HQ). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to before 1900 and council tax band B. At 37 m² this is the smallest unit on EPC record across the building (37–59 m²). The building's EPC ratings span F to D, with this unit at the bottom. On EPC score it ranks last in the building (34 versus a best of 58). The latest certificate (February 2026) shows an F (score 34), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since January 2011. Between certificates, lighting went from Very Poor to Poor and main heating went from Poor to Average; while window efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 81), a 4-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.

It hasn't traded since October 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 37 m² it's 27.5% smaller than the typical home in the postcode (51 m² median across 6 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £146,000 is 19.7% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£306/sq ft) was about 127.3% above the typical sold price in the postcode.