137a, Coldharbour Lane, Lambeth, London, SE5 9NU

137a is a mid-terrace house in Lambeth, London, London (SE5 9NU). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1900-1929 and council tax band C. At 57 m² this is the smallest unit on EPC record across 137a (57–67 m²). The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (54 versus a best of 84). The latest certificate (July 2021) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2011); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Good to Average and lighting dropped from Very Good to Average. The recommended improvements would lift it to C (score 79), a 2-band jump.

Held since June 2005 — that's 21 years off the open market, well above the local norm. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2005, sale prices on this property compounded at 19.5% per year. Today's modelled estimate of £348,000 sits 178.4% above the 2005 sale of £125,000. On a £-per-square-foot basis, the last sale (£204/sq ft) was about 53.6% below the postcode norm.