6 Duchy Close, Chelveston, Wellingborough, NN9 6AW

6 Duchy Close is a four-bedroom detached house in Chelveston, Wellingborough, Wellingborough (NN9 6AW). It has a recorded floor area of 120 m² (around 1292 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (February 2020) 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 March 2010. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Average. The recommended improvements would lift it to B (score 85), a 2-band jump.

It hasn't traded since October 2003, a hold of 23 years that's notably long for the area. Across 1999–2003, sale prices on this property compounded at 18.7% per year. Today's modelled estimate of £341,000 sits 107.3% above the 2003 sale of £164,500. On a £-per-square-foot basis, the last sale (£127/sq ft) was about 42.8% below the postcode norm. At 120 m² it's 17.6% larger than the typical home in the postcode (102 m² median across 15 EPCs).