21 Clayton Drive, Pontarddulais, Swansea, SA4 8AD

21 Clayton Drive is a semi-detached house in Pontarddulais, Swansea, Swansea (SA4 8AD). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 2007-2011 and council tax band C. The latest certificate (May 2025) shows a C (score 70). The rating has held steady at C across 2 certificates since September 2013. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Average to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity. At 46 m² this is the 7th smallest of 63 units on EPC record in the building, where floor areas span 43–114 m². The building's EPC ratings span D to A across 63 units on file.

It hasn't traded since June 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. On a £-per-square-foot basis, the last sale (£199/sq ft) was about 30.3% above the typical sold price in the postcode. At 46 m² it's 25.8% smaller than the typical home in the postcode (62 m² median across 62 EPCs).