18 Blackett Street, Bishop Auckland, DL14 7TD

18 Blackett Street is a mid-terrace house in Bishop Auckland (DL14 7TD). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (December 2015) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in November 2011 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, lighting went from Very Poor to Poor and main heating went from Average to Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 80). The latest certificate is from December 2015, so improvements made since then won't be reflected.

At 123 m² the property is well over the postcode median (78 m² across 16 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £122,000 sits 713.3% above the 2015 sale of £15,000. On a £-per-square-foot basis, the last sale (£11/sq ft) was about 74.4% below the postcode norm. On the market in August 2015 and unlisted since — roughly 11 years.