18 Gron Road, Gwaun Cae Gurwen, Ammanford, SA18 1HD

18 Gron Road is a three-bedroom detached house in Gwaun Cae Gurwen, Ammanford, Ammanford (SA18 1HD). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (December 2023) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in October 2010 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 82), a 2-band jump.

Held since March 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 137 m² the property is well over the postcode median (105 m² across 12 EPCs), placing it in the larger end of the local stock. Across 1996–2007, sale prices on this property compounded at 12.5% per year. Today's modelled estimate of £251,000 is 48.1% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£115/sq ft) was about 31.6% above the typical sold price in the postcode. One historical planning record sits against the property in 2008.