21a, Stuart Road, Southwark, London, SE15 3BE

21a is an end-of-terrace house in Southwark, London, London (SE15 3BE). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (August 2021) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2010. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 77). At 66 m² this is the 22nd smallest of 39 units on EPC record in the building, where floor areas span 45–166 m². The building's EPC ratings span E to A across 39 units on file.

Held since October 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £423,000 sits 1058.9% above the 1997 sale of £36,500. On a £-per-square-foot basis, the last sale (£51/sq ft) was about 88.7% below the postcode norm.