13 William Street, Bangor, LL57 1BG

13 William Street is a two-bedroom mid-terrace house in Bangor (LL57 1BG). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (December 2024) shows a C (score 73). When first surveyed in January 2014 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Very Good, window efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to B (score 88).

One planning record on file: an extension approved in 2000. Past consents include an extension, meaningful when judging how the property has evolved. Across 2007–2014, sale prices here grew -0.1% per year, broadly in step with England's 0% HPI growth. Today's modelled estimate of £149,000 is 12.9% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£166/sq ft) was about 16.9% above the typical sold price in the postcode. On the market in July 2014 and unlisted since — roughly 12 years.