7b, Colworth Grove, Southwark, London, SE17 1LR

7b is a one-bedroom mid-terrace house in Southwark, London, London (SE17 1LR). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1900-1929 and council tax band B. At 53 m² this is the 4th smallest of 7 units on EPC record in the building, where floor areas span 42–101 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (71 versus a worst of 52). The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. The latest certificate (July 2019) shows a C (score 71).

Held since July 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £392,000 sits 120.2% above the 2009 sale of £178,000. On a £-per-square-foot basis, the last sale (£312/sq ft) was about 29.9% below the postcode norm. At 53 m² it's 17.2% smaller than the typical home in the postcode (64 m² median across 6 EPCs). Its energy rating outperforms most of the postcode (better than 83% of similar EPCs).