27 Hartley House, Chambers Street, Southwark, London, SE16 4EP

27 Hartley House is a one-bedroom end-of-terrace house in Southwark, London, London (SE16 4EP). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 2012-2021. At 47 m² this is the 4th smallest of 94 units on EPC record in the building, where floor areas span 44–132 m². The building's EPC ratings span C to B, with this unit at the bottom. Other recorded features include a balcony. The latest certificate (October 2025) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (January 2015); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average.

Today's modelled estimate of £348,000 is 26% below the 2021 sale of £470,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£929/sq ft) was about 284% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer: September 2021 at £470,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.