21 Longfellow Way, Southwark, London, SE1 5TB

21 Longfellow Way is a one-bedroom mid-terrace house in Southwark, London, London (SE1 5TB). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1967-1975 and council tax band C. At 41 m² this is the 4th smallest of 32 units on EPC record in the building, where floor areas span 36–94 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (August 2020) shows a C (score 79), near the top of the C band. When first surveyed in April 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good, lighting went from Very Poor to Very Good and main heating went from Very Poor to Average; while window efficiency dropped from Good to Average. Main heating runs on electricity.

It hasn't traded since August 2005, a hold of 21 years that's notably long for the area. Across 1999–2005, sale prices on this property compounded at 10% per year. Today's modelled estimate of £270,000 sits 126.9% above the 2005 sale of £119,000. At 41 m² it's 26.8% smaller than the typical home in the postcode (56 m² median across 31 EPCs). Its energy rating outperforms most of the postcode (better than 77% of similar EPCs).