40a, Birkbeck Place, Lambeth, London, SE21 8JU

40a is a one-bedroom mid-terrace house in Lambeth, London, London (SE21 8JU). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to 1900-1929. At 48 m² this is the 7th smallest of 44 units on EPC record in the building, where floor areas span 42–194 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (November 2024) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since June 2014. Between certificates, window efficiency went from Poor to Good and lighting went from Very Poor to Very Good.

At 48 m² it sits well below the postcode median (89 m² across 49 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Today's modelled estimate of £379,000 is 14% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£644/sq ft) was about 110.5% above the typical sold price in the postcode. Last sold in July 2014, so it's been off the market for around 12 years.