21 Wellington House, Wellington Street, Swindon, SN1 1EB

21 Wellington House is a one-bedroom end-of-terrace house in Swindon (SN1 1EB). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 2003-2006 and council tax band A. The latest certificate (December 2020) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (December 2008); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Average. The recommended improvements would push it to B (score 85). Main heating runs on electricity. At 37 m² this is the 4th smallest of 60 units on EPC record in the building, where floor areas span 29–64 m². The building's EPC ratings span D to B across 60 units on file.

It hasn't traded since August 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £104,000 is 15.2% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£227/sq ft) was about 17% above the typical sold price in the postcode. At 37 m² it's 17.8% smaller than the typical home in the postcode (45 m² median across 59 EPCs).