24a, Harford Street, Trowbridge, BA14 7HH

24a is a one-bedroom detached house in Trowbridge (BA14 7HH). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (October 2019) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in September 2017 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 77). Main heating runs on electricity. At 37 m² this is the 5th smallest of 18 units on EPC record in the building, where floor areas span 25–49 m². The building's EPC ratings span D to B, with this unit at the bottom.

Untraded for 23 years, with the last transfer in September 2003. Today's modelled estimate of £122,000 sits 69.4% above the 2003 sale of £72,000. On a £-per-square-foot basis, the last sale (£181/sq ft) was about 31.5% below the postcode norm. At 37 m² it's 17.8% smaller than the typical home in the postcode (45 m² median across 17 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.