21a, Digby Street, Scunthorpe, DN15 6DD

21a is an end-of-terrace house in Scunthorpe (DN15 6DD). It has a recorded floor area of 58 m² (around 624 sq ft) and construction records dating it to 1900-1929. The latest certificate (September 2015) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2011. Between certificates, window efficiency went from Average to Good; while lighting dropped from Poor to Very Poor. The recommended improvements would push it to C (score 76). The latest certificate is from September 2015, so improvements made since then won't be reflected. At 58 m² this is the 2nd smallest of 18 units on EPC record in the building, where floor areas span 58–104 m². The building's EPC ratings span E to C across 18 units on file.

Today's modelled estimate of £104,000 sits 188.9% above the 2015 sale of £36,000. At 58 m² it sits well below the postcode median (89 m² across 17 EPCs), making it one of the more compact homes locally. On the market in August 2015 and unlisted since — roughly 11 years.