21a, Connaught Road, Nunthorpe, Middlesbrough, TS7 0BP

21a is a four-bedroom detached house in Nunthorpe, Middlesbrough, Middlesbrough (TS7 0BP). It has a recorded floor area of 185 m² (around 1991 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (November 2016) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (January 2012); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Average; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 78).

Held since June 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. One planning record on file: an extension approved in 2008. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £720,000 is 30.9% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£276/sq ft) was about 92.3% above the typical sold price in the postcode.