9 Mostyn Terrace, Bethesda, Bangor, LL57 3AB

9 Mostyn Terrace is a two-bedroom mid-terrace house in Bethesda, Bangor, Bangor (LL57 3AB). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (August 2022) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (April 2009); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 83), a 2-band jump. Other recorded features include notable views and a loft. Records show the property has been extended at some point in its history.

Held since July 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced England HPI: 3.4% per year against 0% for the wider region. Today's modelled estimate of £177,000 is 34.1% above the 2009 sale price. At 116 m² the property is well over the postcode median (84 m² across 6 EPCs), placing it in the larger end of the local stock.