40a, Copnor Road, Portsmouth, PO3 5AH

40a is a two-bedroom mid-terrace house in Portsmouth (PO3 5AH). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1900-1929 and council tax band A. Tenure is freehold. The latest certificate (August 2025) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2015. Between certificates, lighting went from Very Poor to Poor; while window efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 73). At 55 m² this is the 6th smallest of 24 units on EPC record in the building, where floor areas span 47–134 m². The building's EPC ratings span E to C across 24 units on file.

Untraded for 22 years, with the last transfer in June 2004. Today's modelled estimate of £166,000 sits 58.1% above the 2004 sale of £105,000. On a £-per-square-foot basis, the last sale (£177/sq ft) was about 17.1% above the typical sold price in the postcode. At 55 m² it sits well below the postcode median (96 m² across 23 EPCs), making it one of the more compact homes locally.