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

29 Blake House is a two-bedroom detached house in Portsmouth (PO1 3TH). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1996-2002 and council tax band E. At 103 m² this is the 28th 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, with this unit at the bottom. Other recorded features include a balcony and notable views. The latest certificate (December 2021) shows an E (score 49), well below the UK norm with real room to improve. Earlier certificates rated it C (July 2010); the latest reading is 2 bands lower. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Good to Very Poor. Main heating runs on electricity.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2002–2022, sale prices on this property compounded at 3.9% per year. Today's modelled estimate of £508,000 is 11.6% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£410/sq ft) was about 20% above the typical sold price in the postcode. Last sale on file: £455,000 in August 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.