18 Is Y Llan, Llanddarog, Carmarthen, SA32 8NX

18 Is Y Llan is a semi-detached house in Llanddarog, Carmarthen, Carmarthen (SA32 8NX). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (October 2016) shows an F (score 34), near the bottom of the EPC scale. When first surveyed in October 2016 the rating was G, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and hot-water efficiency went from Very Poor to Poor; while wall efficiency dropped from Poor to Very Poor and lighting dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 83), a 4-band jump. Main heating runs on house coal.

Held since June 2003 — that's 23 years off the open market, well above the local norm. Today's modelled estimate of £175,000 sits 150.2% above the 2003 sale of £69,950. On a £-per-square-foot basis, the last sale (£69/sq ft) was about 39.3% below the postcode norm. At 94 m² it's 16% larger than the typical home in the postcode (81 m² median across 38 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs).