20b, Geldart Road, Southwark, London, SE15 5XA

20b is a one-bedroom mid-terrace house in Southwark, London, London (SE15 5XA). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1900-1929 and council tax band B. At 52 m² this is the 24th smallest of 32 units on EPC record in the building, where floor areas span 35–106 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 (79 versus a worst of 51). The property has an EV charger on record, all of which lower running costs and tend to lift resale appeal. Period features are noted in the property record. The latest certificate (June 2025) shows a C (score 79), near the top of the C band. When first surveyed in December 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and roof efficiency went from Very Poor to Good.

Today's modelled estimate of £406,000 is 31% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£554/sq ft) was about 43.2% above the typical sold price in the postcode. Last changed hands 9 years ago, in September 2017. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.