Charlton House, Flat 6, Upham Road, Swindon, SN3 1EE

Charlton House is an end-of-terrace house in Swindon (SN3 1EE). It has a recorded floor area of 28 m² (around 301 sq ft), construction records dating it to 1991-1995 and council tax band A. At 28 m² this is the 6th smallest of 20 units on EPC record in Charlton House, where floor areas span 25–49 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (66 versus a best of 83). The latest certificate (March 2026) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2011); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Good to Average and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 70). This certificate was lodged in the last six months, so the rating reflects current condition.

At 28 m² it's 15.2% smaller than the typical home in the postcode (33 m² median across 19 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.