25a, Southampton Way, Southwark, London, SE5 7SW

25a is a one-bedroom mid-terrace house in Southwark, London, London (SE5 7SW). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (May 2016) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2009); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to D (score 62). The latest certificate is from May 2016, so improvements made since then won't be reflected. At 114 m² this is the 39th smallest of 42 units on EPC record in the building, where floor areas span 25–117 m². The building's EPC ratings span F to C across 42 units on file.

Untraded for 25 years, with the last transfer in November 2001. At 114 m² the property is well over the postcode median (62 m² across 54 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Today's modelled estimate of £579,000 sits 133.5% above the 2001 sale of £248,000. On a £-per-square-foot basis, the last sale (£202/sq ft) was about 29.9% below the postcode norm. One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved.