23 Castlefields Avenue, Charlton Kings, Cheltenham, GL52 6YR

23 Castlefields Avenue is a three-bedroom semi-detached house in Charlton Kings, Cheltenham, Cheltenham (GL52 6YR). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (January 2015) shows an E (score 41), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2014. Between certificates, window efficiency dropped from Average to Very Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from January 2015, so improvements made since then won't be reflected. Other recorded features include a conservatory.

Across 1996–2015, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £355,000 sits 54.3% above the 2015 sale of £230,000. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 16.8% above the typical sold price in the postcode. One planning record on file: an extension approved in 2026. Past consents include an extension, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). On the market in January 2015 and unlisted since — roughly 11 years.