Harlech House, Flat 9, Heol Isaf, Radyr, Cardiff, CF15 8AP

Harlech House is a two-bedroom semi-detached house in Radyr, Cardiff, Cardiff (CF15 8AP). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (March 2026) shows a C (score 77), near the top of the C band. When first surveyed in November 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Poor to Average and hot-water efficiency went from Average to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition. At 73 m² this is the 4th smallest of 12 units on EPC record in Harlech House, where floor areas span 70–73 m². The building's EPC ratings span D to B across 12 units on file. Other recorded features include a loft.

Sold November 2022 for £162,000. 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. Across 1999–2022, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £181,000 is 11.7% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£206/sq ft) was about 25.2% above the typical sold price in the postcode.