3 Sonata House, Lock Approach, Port Solent, Portsmouth, PO6 4UZ

3 Sonata House is a two-bedroom end-of-terrace house in Port Solent, Portsmouth, Portsmouth (PO6 4UZ). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1996-2002 and council tax band F. At 93 m² this is the largest unit on EPC record across the building (70–93 m²). The building's EPC ratings span D to B, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 65). The latest certificate (January 2022) returns a B (score 81), comfortably above the UK average. When first surveyed in November 2011 the rating was C, the property has climbed 1 band since. Between certificates, main heating went from Poor to Average; while lighting dropped from Average to Very Poor. Main heating runs on electricity.

At 93 m² it's 24% larger than the typical home in the postcode (75 m² median across 9 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £356,000 is 33.2% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£267/sq ft) was about 17.8% below the postcode norm. On the market in September 2011 and unlisted since — roughly 15 years.