1 Blackwell Hill, Northampton, NN4 9YB

1 Blackwell Hill is a four-bedroom detached house in Northampton (NN4 9YB). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (March 2017) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2010. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. Other recorded features include a conservatory. Records show the property has been extended at some point in its history.

Last sale on file: £365,000 in May 2022. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2000–2022, sale prices on this property compounded at 5.9% per year. On a £-per-square-foot basis, the last sale (£385/sq ft) was about 135.4% above the typical sold price in the postcode.