18 Polperro Close, Ryhope, Sunderland, SR2 0YN

18 Polperro Close is a four-bedroom detached house in Ryhope, Sunderland, Sunderland (SR2 0YN). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (March 2016) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in October 2014 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Very Poor to Good; while roof efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 79). The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include a conservatory.

Held since June 1997 — that's 29 years off the open market, well above the local norm. 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 £282,000 sits 231.8% above the 1997 sale of £84,995. On a £-per-square-foot basis, the last sale (£82/sq ft) was about 47.5% below the postcode norm.