Flat 1, 7 Grove Road North, Southsea, PO5 1JJ

Flat 1 is an end-of-terrace house in Southsea (PO5 1JJ). It has a recorded floor area of 54 m² (around 581 sq ft) and construction records dating it to 1900-1929. At 54 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 42–92 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 75). The latest certificate (September 2024) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since December 2017. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.

Held since May 2003 — that's 23 years off the open market, well above the local norm. At 54 m² it's 20.6% smaller than the typical home in the postcode (68 m² median across 27 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2000–2003, sale prices on this property compounded at 19.6% per year. Today's modelled estimate of £150,000 sits 70.5% above the 2003 sale of £88,000. On a £-per-square-foot basis, the last sale (£151/sq ft) was about 19.1% below the postcode norm.