15 Quarrybrook Close, South Marston, Swindon, SN3 4UP

15 Quarrybrook Close is a two-bedroom mid-terrace house in South Marston, Swindon, Swindon (SN3 4UP). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (January 2021) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2011); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 90), a 2-band jump.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1995–2013, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £243,000 sits 67% above the 2013 sale of £145,500. On a £-per-square-foot basis, the last sale (£222/sq ft) was about 59% above the typical sold price in the postcode. On the market in May 2013 and unlisted since — roughly 13 years. Across the public record there are 5 sales, relatively high churn for a single property.