9 Mizzen House, Lock Approach, Port Solent, Portsmouth, PO6 4UW

9 Mizzen House is a two-bedroom semi-detached house in Port Solent, Portsmouth, Portsmouth (PO6 4UW). It has a recorded floor area of 82 m² (around 877 sq ft), construction records dating it to 1996-2002 and council tax band F. At 82 m² this is the 3rd smallest of 12 units on EPC record in the building, where floor areas span 78–87 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (59 versus a best of 81). Other recorded features include notable views. The home occupies a cul-de-sac position. The latest certificate (May 2009) shows a D (score 59), a step below the typical UK home. Main heating runs on electricity. The latest certificate is from May 2009, so improvements made since then won't be reflected.

Held since March 2000 — that's 26 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £343,000 sits 85.4% above the 2000 sale of £185,000. On a £-per-square-foot basis, the last sale (£211/sq ft) was about 31.3% below the postcode norm.