12a, Geldart Road, Southwark, London, SE15 5XA

12a is a mid-terrace house in Southwark, London, London (SE15 5XA). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1900-1929. The latest certificate (August 2019) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2009. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 75). At 47 m² this is the 17th smallest of 32 units on EPC record in the building, where floor areas span 35–106 m². The building's EPC ratings span E to C across 32 units on file.

Held since October 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2007–2007, sale prices on this property compounded at 19.3% per year. Today's modelled estimate of £369,000 sits 121% above the 2007 sale of £167,000. On a £-per-square-foot basis, the last sale (£330/sq ft) was about 18.3% below the postcode norm.