21a, Newtown, Trowbridge, BA14 0BA

21a is a one-bedroom semi-detached house in Trowbridge (BA14 0BA). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to before 1900 and council tax band A. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (March 2022) shows a G (score 1), near the bottom of the EPC scale. Earlier certificates rated it F (August 2012); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Very Poor and window efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to D (score 58), a 3-band jump. Main heating runs on electricity.

At 62 m² it's 24.4% smaller than the typical home in the postcode (82 m² median across 29 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Across 2003–2014, sale prices on this property compounded at 8.2% per year. Today's modelled estimate of £166,000 sits 72.9% above the 2014 sale of £96,000. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 45.2% above the typical sold price in the postcode. On the market in December 2014 and unlisted since — roughly 11 years. 2 planning records sit against the property, 0 approved, 2 refused.