Flat 5, 21 St Andrews Road, Southsea, PO5 1EP

Flat 5 is a two-bedroom detached house in Southsea (PO5 1EP). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1900-1929 and council tax band B. At 48 m² this is the smallest unit on EPC record across the building (48–72 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 (53 versus a best of 70). The latest certificate (February 2014) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 65). The latest certificate is from February 2014, so improvements made since then won't be reflected.

At 48 m² it's 18.6% smaller than the typical home in the postcode (59 m² median across 47 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Across 2005–2017, sale prices on this property compounded at 1.8% per year. Today's modelled estimate of £185,000 is 15.6% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£310/sq ft) was about 52.9% above the typical sold price in the postcode. Last sold in March 2017, so it's been off the market for around 9 years.