2 Dan Y Dderwen, Rhydargaeau, Carmarthen, SA32 7DQ

2 Dan Y Dderwen is a detached house in Rhydargaeau, Carmarthen, Carmarthen (SA32 7DQ). It has a recorded floor area of 28 m² (around 301 sq ft), construction records dating it to 2026 and council tax band G. The latest certificate (January 2026) shows an E (score 44), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2017); the latest reading is one band lower. Between certificates, wall efficiency went from Good to Very Good, roof efficiency went from Average to Very Good and lighting went from Average to Very Good; while window efficiency dropped from Good to Poor and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to D (score 61). Main heating runs on electricity: electricity, unspecified tariff. This certificate was lodged in the last six months, so the rating reflects current condition.

At 28 m² it sits well below the postcode median (223 m² across 14 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £524,000 sits 51.9% above the 2018 sale of £345,000. On a £-per-square-foot basis, the last sale (£1,145/sq ft) was about 663.7% above the typical sold price in the postcode. One planning record on file: an annexe approved in 2025. Past consents include an annexe and change of use to residential, meaningful when judging how the property has evolved. Last sale on file: £345,000 in November 2018.