11 Helena Square, Southwark, London, SE16 5XP

11 Helena Square is a one-bedroom semi-detached house in Southwark, London, London (SE16 5XP). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 2003-2006 and council tax band D. There is a swimming pool on the plot, uncommon for the area. At 40 m² this is the 2nd smallest of 31 units on EPC record in the building, where floor areas span 39–103 m². The building's EPC ratings span D to B across 31 units on file. The latest certificate (June 2016) shows a C (score 76), near the top of the C band. The recommended improvements would push it to B (score 83). Main heating runs on electricity. The latest certificate is from June 2016, so improvements made since then won't be reflected.

At 40 m² it sits well below the postcode median (58 m² across 30 EPCs), making it one of the more compact homes locally. Across 1997–2016, sale prices on this property compounded at 8.1% per year. On a £-per-square-foot basis, the last sale (£790/sq ft) was about 91.2% above the typical sold price in the postcode. Last sold in February 2016, so it's been off the market for around 10 years.