18a, Southwick Road, North Bradley, Trowbridge, BA14 0SD

18a is a four-bedroom detached house in North Bradley, Trowbridge, Trowbridge (BA14 0SD). It has a recorded floor area of 164 m² (around 1765 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (April 2016) shows an E (score 48), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average and lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 78), a 2-band jump. The latest certificate is from April 2016, so improvements made since then won't be reflected. Other recorded features include a conservatory.

At 164 m² the property is well over the postcode median (84 m² across 21 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2015, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £434,000 sits 55% above the 2015 sale of £280,000. On the market in September 2015 and unlisted since — roughly 11 years.