Stonewell Court, Flat 10, Ty Gwyn Road, Cardiff, CF23 5AY

Stonewell Court is a two-bedroom semi-detached house in Cardiff (CF23 5AY). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1983-1990 and council tax band D. At 63 m² this is the 8th smallest of 10 units on EPC record in Stonewell Court, where floor areas span 42–66 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (October 2021) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it B (November 2008); the latest reading is 2 bands lower. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Good to Very Poor.

Most recent transfer: October 2021 at £132,000. 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. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Across 2009–2021, sale prices on this property compounded at 2.2% per year. Today's modelled estimate of £166,000 is 25.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£195/sq ft) was about 19.8% above the typical sold price in the postcode.