21 Dover Street, Southampton, SO14 6GG

21 Dover Street is a two-bedroom mid-terrace house in Southampton (SO14 6GG). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (August 2019) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since November 2008. Between certificates, hot-water efficiency went from Good to Very Good and lighting went from Poor to Good; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 2-band jump. The home occupies a corner plot.

On the market in February 2016 and unlisted since — roughly 10 years. Across the public record there are 4 sales, relatively high churn for a single property. At 60 m² it's 26.8% smaller than the typical home in the postcode (82 m² median across 20 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). Across 1998–2016, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £241,000 is 28.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£291/sq ft) was about 34.1% above the typical sold price in the postcode. One planning record on file: an extension refused in 2009.