Flat 9, 31 Dewar Street, Southwark, London, SE15 4JP

Flat 9 is a semi-detached house in Southwark, London, London (SE15 4JP). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1983-1990 and council tax band B. At 54 m² this is the 6th smallest of 10 units on EPC record in the building, where floor areas span 43–57 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (63 versus a best of 81). The latest certificate (January 2025) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2014. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to C (score 78). Main heating runs on electricity.

It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Across 1999–2022, sale prices on this property compounded at 6.9% per year. On a £-per-square-foot basis, the last sale (£571/sq ft) was about 88.8% above the typical sold price in the postcode. Last sale on file: £332,000 in November 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.