11 Gefnan, Mynydd Llandygai, Bangor, LL57 4DJ

11 Gefnan is a three-bedroom semi-detached house in Mynydd Llandygai, Bangor, Bangor (LL57 4DJ). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (June 2013) shows a D (score 57), a step below the typical UK home. The recommended improvements would lift it to B (score 87), a 2-band jump. Main heating runs on oil. The latest certificate is from June 2013, so improvements made since then won't be reflected. Other recorded features include attached land beyond the plot.

Sale prices here have outpaced England HPI: 7.1% per year against 0% for the wider region. Today's modelled estimate of £286,000 is 39.5% above the 2017 sale price. At 108 m² it's 20% larger than the typical home in the postcode (90 m² median across 11 EPCs). Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). On the market in November 2017 and unlisted since — roughly 8 years.