Basement Flat, 100 Marlborough Road, Brynmill, Swansea, SA2 0DY

Basement Flat is a mid-terrace house in Brynmill, Swansea, Swansea (SA2 0DY). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (October 2020) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2010. Between certificates, lighting went from Very Poor to Good. The recommended improvements would push it to C (score 77).

At 50 m² it sits well below the postcode median (98 m² across 24 EPCs), making it one of the more compact homes locally. Last sale on file: £104,000 in December 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2002–2021, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £123,000 is 18.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£193/sq ft) was about 101% above the typical sold price in the postcode.