20a, Dowling Street, Swindon, SN1 5QY

20a is an end-of-terrace house in Swindon (SN1 5QY). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (December 2018) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (October 2008); the latest reading is one band lower. Between certificates, hot-water efficiency went from Good to Very Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 73).

Across 1997–2015, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £107,000 is 10.8% below the 2015 sale of £120,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£253/sq ft) was about 79.9% above the typical sold price in the postcode. At 44 m² it sits well below the postcode median (75 m² across 29 EPCs), making it one of the more compact homes locally. Last sold in April 2015, so it's been off the market for around 11 years. Across the public record there are 4 sales, relatively high churn for a single property.