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Get started15 Duchy Close is a three-bedroom detached house in Chelveston, Wellingborough, Wellingborough (NN9 6AW). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (March 2022) shows a C (score 72). The recommended improvements would push it to B (score 85). Our model identifies extension potential, subject to local planning policy.
Sale prices here have outpaced England HPI: 4.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£321/sq ft) was about 74.8% 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 a conservatory, meaningful when judging how the property has evolved. Last sale on file: £352,000 in October 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
15 Duchy Close has 2 separate extension applications on the council record.
Sale price has at least doubled since 2005.
£354,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.4% per year over 18 years.
£352,000
Growth on file: 4.4% per year over 18 years.
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15 Duchy Close outperforms the street on epc rating by a wide margin.
Price per m²
£3,451
Street avg £2,700
Floor Area
102 m²
Street avg 115 m²
Habitable Rooms
6 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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Extension: Rear of property
Conservatory to rear
Extension: Two storey
Two storey extension.
18 October 2022Most recent
£352,000
+95.6%over 16 years18 September 2006
£180,000
+9.1%over 1 year18 March 2005
£165,000
Median price across the last 5 sales in NN9 6AW: £357,500 (2025–2020).
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
28 Duchy Close Chelveston Wellingborough
Sold Oct 2020
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
3.4 t/year
Street avg 4.5 t/year
NN9 6FF
Water Lane — bus stop.
Closest school
2.1 km
Stanwick Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
40.2dB