15 Mannington Lane, Westlea, Swindon, SN5 7AJ

15 Mannington Lane is a two-bedroom detached house in Westlea, Swindon, Swindon (SN5 7AJ). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1983-1990 and council tax band A. At 49 m² this is the smallest unit on EPC record across the building (49–123 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (November 2025) shows a C (score 69), just inside the C band. When first surveyed in March 2010 the rating was F, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Very Poor to Good, lighting went from Very Poor to Very Good and main heating went from Very Poor to Good; while window efficiency dropped from Average to Poor.

Across 2010–2015, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £147,000 is 25.6% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£222/sq ft) was about 50% above the typical sold price in the postcode. On the market in March 2015 and unlisted since — roughly 11 years. At 49 m² it's 19% smaller than the typical home in the postcode (61 m² median across 8 EPCs).