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Get started6 Cowper Close is a three-bedroom semi-detached house in Irthlingborough, Wellingborough, Wellingborough (NN9 5PE). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (July 2025) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 81).
Sale prices here have outpaced England HPI: 2.1% per year against 0.1% for the wider region. Today's modelled estimate of £225,000 sits 125% above the 2025 sale of £100,000. It changed hands recently, sold August 2025 for £100,000.
6 Cowper Close's estimated value is more than triple its earliest registered sale price (2000).
£225,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.1% per year over 25 years.
£100,000
Growth on file: 2.1% per year over 25 years.
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Price per m² for 6 Cowper Close lags the street by a wide margin.
Price per m²
£1,190
Street avg £1,928
Floor Area
84 m²
Street avg 83 m²
Habitable Rooms
4 rooms
Street avg 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
47.4dB

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8 August 2025Most recent
£100,000
+66.7%over 25 years21 June 2000
£60,000
Median price across the last 5 sales in NN9 5PE: £128,500 (2021–2006).
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

CO₂ Emissions
2.6 t/year
Street avg 4.8 t/year
NN9 5DY
Thomas Flawn Road — bus stop.
Closest school
0.8 km
Irthlingborough Nursery and Infant School. 10 schools nearby.
Night-time· 23:00 – 07:00
38.7dB