21a, Inglis Road, Southsea, PO5 1PB

21a is a two-bedroom mid-terrace house in Southsea (PO5 1PB). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1930-1949 and council tax band A. Tenure is freehold. The latest certificate (September 2021) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2011); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity. At 65 m² this is the 5th smallest of 33 units on EPC record in the building, where floor areas span 35–215 m². The building's EPC ratings span F to B across 33 units on file.

At 65 m² it sits well below the postcode median (113 m² across 32 EPCs), making it one of the more compact homes locally. Sold May 2019 for £155,000. Across the public record there are 5 sales, relatively high churn for a single property. Across 1997–2019, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £172,000 is 11% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£222/sq ft) was about 16% above the typical sold price in the postcode.