18 Wynyard Grove, Auckland Park, Bishop Auckland, DL14 8RF

18 Wynyard Grove is a three-bedroom semi-detached house in Auckland Park, Bishop Auckland, Bishop Auckland (DL14 8RF). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (June 2014) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in February 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average and hot-water efficiency went from Poor to Good; while roof efficiency dropped from Average to Poor and lighting dropped from Good to Average. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from June 2014, so improvements made since then won't be reflected.

It hasn't traded since February 1995, a hold of 31 years that's notably long for the area. 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 £133,000 sits 212.9% above the 1995 sale of £42,500. On a £-per-square-foot basis, the last sale (£53/sq ft) was about 61.1% below the postcode norm.