20b, Morden Road, London, SE3 0AA

20b is a three-bedroom detached house in London (SE3 0AA). It has a recorded floor area of 139 m² (around 1496 sq ft) and construction records dating it to 1900-1929. At 139 m² this is the largest unit on EPC record across the building (29–139 m²). The building's EPC ratings span E to C across 31 units on file. Period features are noted in the property record. The latest certificate (May 2023) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since October 2012. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 76).

Held since August 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. At 139 m² the property is well over the postcode median (95 m² across 44 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £960,000 sits 368.3% above the 1997 sale of £205,000. On a £-per-square-foot basis, the last sale (£137/sq ft) was about 71.3% below the postcode norm.