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Get started11 Duchy Close is a three-bedroom detached house in Chelveston, Wellingborough, Wellingborough (NN9 6AW). It has a recorded floor area of 124 m² (around 1335 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (July 2015) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since January 2009. Between certificates, roof efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 78). The latest certificate is from July 2015, so improvements made since then won't be reflected.
It hasn't traded since April 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £268,000 sits 75.7% above the 2009 sale of £152,500. On a £-per-square-foot basis, the last sale (£114/sq ft) was about 37.7% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 124 m² it's 21.6% larger than the typical home in the postcode (102 m² median across 15 EPCs).
11 Duchy Close's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 19 Jul 2025
Extension: Side and rear of property
Two storey side extension and single storey rear extension.
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£268,000
Modelled from EPC, postcode comparables.
£152,500
Recorded with HM Land Registry.
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On price per m², 11 Duchy Close runs well behind the street norm.
Price per m²
£1,230
Street avg £2,902
Floor Area
124 m²
Street avg 113 m²
Habitable Rooms
5 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
47.8dB

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Single storey rear extension, two storey side extension with single storey side extension above garage
9 April 2009Most recent
£152,500
Median price across the last 5 sales in NN9 6AW: £352,000 (2025–2022).
19 Duchy Close Chelveston Wellingborough
Sold Aug 2025
23 Duchy Close Chelveston Wellingborough
Sold Feb 2025
3 Duchy Close Chelveston Wellingborough
Sold Aug 2023
22 Duchy Close Chelveston Wellingborough
Sold May 2023
15 Duchy Close Chelveston Wellingborough
Sold Oct 2022
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 6 rooms
CO₂ Emissions
6.5 t/year
Street avg 4.3 t/year
NN9 6FB
Water Lane — bus stop.
Closest school
2.1 km
Stanwick Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
40.2dB