18 King William Street, Swindon, SN1 3LB

18 King William Street is a three-bedroom mid-terrace house in Swindon (SN1 3LB). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (August 2022) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in June 2013 the rating was G, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Very Poor to Good and main heating went from Very Poor to Good; while roof efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump.

One planning record on file: tree works approved in 2023. Past consents include tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. Across 2007–2022, sale prices on this property compounded at 5.7% per year. On a £-per-square-foot basis, the last sale (£268/sq ft) was about 112.8% above the typical sold price in the postcode. Most recent transfer: November 2022 at £265,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.