1 Pen Y Graig, Bethesda, Bangor, LL57 3AS

1 Pen Y Graig is an end-of-terrace house in Bethesda, Bangor, Bangor (LL57 3AS). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (October 2019) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in August 2013 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Very Good and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to A (score 94), a 4-band jump. Main heating runs on electricity.

Held since February 2003 — that's 23 years off the open market, well above the local norm. Today's modelled estimate of £127,000 sits 154% above the 2003 sale of £50,000. On a £-per-square-foot basis, the last sale (£91/sq ft) was about 40.6% below the postcode norm.