1 Llys Yr Onnen, Ffairfach, Llandeilo, SA19 6PA

1 Llys Yr Onnen is a three-bedroom detached house in Ffairfach, Llandeilo, Llandeilo (SA19 6PA). It has a recorded floor area of 216 m² (around 2325 sq ft), construction records dating it to 2007-2011 and council tax band F. The latest certificate (April 2025) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since May 2010. Between certificates, lighting went from Very Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 84). Other recorded features include notable views. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

Across 2004–2014, sale prices on this property compounded at 1.3% per year. Today's modelled estimate of £424,000 sits 51.4% above the 2014 sale of £280,000. On a £-per-square-foot basis, the last sale (£120/sq ft) was about 27.5% below the postcode norm. One planning record on file: a loft conversion approved in 2015. Past consents include a loft conversion, meaningful when judging how the property has evolved. On the market in July 2014 and unlisted since — roughly 12 years.