20a, Hinckley Road, Southwark, London, SE15 4HZ

20a is a two-bedroom mid-terrace house in Southwark, London, London (SE15 4HZ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (June 2020) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in March 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to C (score 74). At 56 m² this is the 4th smallest of 14 units on EPC record in the building, where floor areas span 36–147 m². The building's EPC ratings span E to C across 14 units on file.

Held since May 2002 — that's 24 years off the open market, well above the local norm. Across 2000–2002, sale prices on this property compounded at 13.6% per year. Today's modelled estimate of £472,000 sits 195% above the 2002 sale of £160,000. On a £-per-square-foot basis, the last sale (£265/sq ft) was about 28.5% below the postcode norm. At 56 m² it's 22.2% smaller than the typical home in the postcode (72 m² median across 18 EPCs).