13 Helena Square, Southwark, London, SE16 5XP

13 Helena Square is a one-bedroom mid-terrace house in Southwark, London, London (SE16 5XP). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1996-2002 and council tax band C. There is a swimming pool on the plot, uncommon for the area. At 55 m² this is the 14th 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 (May 2024) shows a C (score 75), near the top of the C band. Earlier certificates rated it B (April 2014); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.

Across 1999–2014, sale prices on this property compounded at 8.8% per year. Today's modelled estimate of £367,000 is 11.2% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£557/sq ft) was about 34.2% above the typical sold price in the postcode. On the market in October 2014 and unlisted since — roughly 12 years.