129a, London Road, Portsmouth, PO2 9AA

129a is a one-bedroom mid-terrace house in Portsmouth (PO2 9AA). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (June 2023) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2013. Between certificates, lighting went from Poor to Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 74). At 37 m² this is the 3rd smallest of 19 units on EPC record in the building, where floor areas span 30–122 m². The building's EPC ratings span E to C across 19 units on file.

Untraded for 20 years, with the last transfer in March 2006. Across the public record there are 6 sales, relatively high churn for a single property. At 37 m² it sits well below the postcode median (54 m² across 18 EPCs), making it one of the more compact homes locally. Across 1997–2006, sale prices on this property compounded at 12.9% per year. Today's modelled estimate of £117,000 is 42.7% above the 2006 sale price. On a £-per-square-foot basis, the last sale (£206/sq ft) was about 26.2% above the typical sold price in the postcode.