40 Blackwell End, Potterspury, Towcester, NN12 7QE

40 Blackwell End is an end-of-terrace house in Potterspury, Towcester, Towcester (NN12 7QE). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (November 2022) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in April 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Very Poor to Average and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 78).

At 117 m² the property is well over the postcode median (73 m² across 41 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2015. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Across 2000–2024, sale prices on this property compounded at 7.5% per year. On a £-per-square-foot basis, the last sale (£345/sq ft) was about 75.9% above the typical sold price in the postcode. Last sale on file: £435,000 in September 2024.