3 Clos Cwm Du, Pontprennau, Cardiff, CF23 8LE

3 Clos Cwm Du is a three-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8LE). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1991-1995 and council tax band E. Tenure is freehold. The latest certificate (December 2022) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in July 2015 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 82), a 2-band jump. Other recorded features include a conservatory.

Untraded for 23 years, with the last transfer in June 2003. Across the public record there are 4 sales, relatively high churn for a single property. Across 1995–2003, sale prices on this property compounded at 19.6% per year. Today's modelled estimate of £464,000 is 30.7% above the 2003 sale price. On a £-per-square-foot basis, the last sale (£434/sq ft) was about 127.2% above the typical sold price in the postcode. At 76 m² it's 20% smaller than the typical home in the postcode (95 m² median across 17 EPCs).