5 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE

5 Dol Y Dderwen is a detached house in Llangain, Carmarthen, Carmarthen (SA33 5BE). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 2023 and council tax band E. The latest certificate (February 2025) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in June 2009 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Good to Very Good, roof efficiency went from Good to Very Good and window efficiency went from Average to Good. The recommended improvements would push it to A (score 92). Main heating runs on electricity: electricity, unspecified tariff.

It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1998–2009, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £317,000 sits 81.1% above the 2009 sale of £175,000. At 113 m² it's 27% larger than the typical home in the postcode (89 m² median across 52 EPCs).