15 Blake House, Gunwharf Quays, Portsmouth, PO1 3TH

15 Blake House is a two-bedroom end-of-terrace house in Portsmouth (PO1 3TH). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1996-2002 and council tax band E. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony. At 98 m² this is the 24th smallest of 43 units on EPC record in the building, where floor areas span 52–155 m². The building's EPC ratings span E to B across 43 units on file. The latest certificate (August 2024) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it B (May 2009); the latest reading is 2 bands lower. Between certificates, window efficiency went from Average to Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to C (score 72). Main heating runs on electricity.

It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Today's modelled estimate of £568,000 is 11.4% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£483/sq ft) was about 42.2% above the typical sold price in the postcode. 13 years since the last transfer (August 2013).