12 Dyffryn Terrace, Groeslon, Caernarfon, LL54 7TL

12 Dyffryn Terrace is a three-bedroom end-of-terrace house in Groeslon, Caernarfon, Caernarfon (LL54 7TL). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (September 2017) shows a C (score 71). When first surveyed in August 2014 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Good and window efficiency went from Poor to Average. The recommended improvements would push it to B (score 85).

Sale prices here have outpaced England HPI: 5.7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£259/sq ft) was about 151.5% above the typical sold price in the postcode. It changed hands recently, sold April 2025 for £195,000. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs).