10 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ

10 Arethusa House is a two-bedroom mid-terrace house in Portsmouth (PO1 3TQ). 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. The latest certificate (July 2022) returns a B (score 84), comfortably above the UK average. The rating has held steady at B across 2 certificates since March 2012. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good. At 103 m² this is the 35th smallest of 52 units on EPC record in the building, where floor areas span 59–171 m². The building's EPC ratings span E to B, with this unit at the top. Other recorded features include a balcony and notable views.

Its energy rating outperforms most of the postcode (better than 84% of similar EPCs). Across 2014–2022, sale prices on this property compounded at 4.1% per year. On a £-per-square-foot basis, the last sale (£442/sq ft) was about 34.3% above the typical sold price in the postcode. Most recent transfer: September 2022 at £490,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.