17b, Pennethorne Road, Southwark, London, SE15 5TH

17b is a one-bedroom mid-terrace house in Southwark, London, London (SE15 5TH). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1900-1929 and council tax band B. Tenure is freehold. The latest certificate (September 2016) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in March 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 79). At 48 m² this is the 9th smallest of 23 units on EPC record in the building, where floor areas span 29–126 m². The building's EPC ratings span D to C, with this unit at the bottom. Period features are noted in the property record. The home occupies a cul-de-sac position.

A recent sale: £340,000 in January 2025. Across 2005–2025, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £400,000 is 17.6% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£658/sq ft) was about 122.4% above the typical sold price in the postcode. At 48 m² it's 15% smaller than the typical home in the postcode (57 m² median across 22 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.