11 Parc Y Nant, Nantgarw, Cardiff, CF15 7TJ

11 Parc Y Nant is a three-bedroom detached house in Nantgarw, Cardiff, Cardiff (CF15 7TJ). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (June 2025) shows a C (score 71). When first surveyed in August 2009 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Average to Good and main heating went from Average to Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Good to Average. Our model identifies extension potential, subject to local planning policy.

Untraded for 17 years, with the last transfer in November 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2000–2009, sale prices on this property compounded at 8% per year. Today's modelled estimate of £334,000 sits 96.5% above the 2009 sale of £170,000. On a £-per-square-foot basis, the last sale (£160/sq ft) was about 16.4% below the postcode norm. Its energy rating outperforms most of the postcode (better than 77% of similar EPCs).