4 Tynewydd Drive, Castleton, Cardiff, CF3 2SB

4 Tynewydd Drive is a five-bedroom detached house in Castleton, Cardiff, Cardiff (CF3 2SB). It has a recorded floor area of 347 m² (around 3735 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (July 2013) shows a C (score 69), just inside the C band. When first surveyed in May 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The latest certificate is from July 2013, so improvements made since then won't be reflected.

It hasn't traded since June 2001, a hold of 25 years that's notably long for the area. At 347 m² the property is well over the postcode median (144 m² across 9 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 1996–2001, sale prices on this property compounded at 20% per year. Today's modelled estimate of £831,000 sits 177% above the 2001 sale of £300,000. On a £-per-square-foot basis, the last sale (£80/sq ft) was about 69.2% below the postcode norm. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.