1 Brynmawr Close, St Mellons, Cardiff, CF3 0HJ

1 Brynmawr Close is an end-of-terrace house in St. Mellons, Cardiff, Cardiff (CF3 0HJ). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (February 2022) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2008. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Average to Very Good and lighting went from Average to Good; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 87), a 2-band jump.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sale on file: £202,000 in June 2022. 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 2004–2022, sale prices on this property compounded at 6.6% per year. Today's modelled estimate of £237,000 is 17.3% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£202/sq ft) was about 40.7% above the typical sold price in the postcode.