17 Blackwell Hill, Northampton, NN4 9YB

17 Blackwell Hill is a four-bedroom detached house in Northampton (NN4 9YB). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (June 2011) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 69). The latest certificate is from June 2011, so improvements made since then won't be reflected. Other recorded features include a conservatory.

It hasn't traded since July 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1996–2008, sale prices on this property compounded at 10.2% per year. Today's modelled estimate of £315,000 sits 64.1% above the 2008 sale of £192,000. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 19.7% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.