8b, Penrhyn Terrace, Bethesda, Bangor, LL57 3NB

8b is a mid-terrace house in Bethesda, Bangor, Bangor (LL57 3NB). It has a recorded floor area of 38 m² (around 409 sq ft) and construction records dating it to 1900-1929. The latest certificate (December 2023) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since January 2009. Between certificates, lighting went from Poor to Good. The recommended improvements would lift it to B (score 84), a 3-band jump. Main heating runs on electricity. At 38 m² this is the 4th smallest of 21 units on EPC record in the building, where floor areas span 32–83 m². The building's EPC ratings span F to C across 21 units on file.

Untraded for 31 years, with the last transfer in September 1995. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £126,000 sits 500% above the 1995 sale of £21,000. On a £-per-square-foot basis, the last sale (£51/sq ft) was about 44.7% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).