5 Cowper Close, Irthlingborough, Wellingborough, NN9 5PE
About 5 Cowper Close
5 Cowper Close is a three-bedroom semi-detached house in Irthlingborough, Wellingborough, Wellingborough (NN9 5PE). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (January 2017) shows an E (score 45), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2011); the latest reading is one band lower. Between certificates, main heating went from Average to Good; while wall efficiency dropped from Average to Poor and roof efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 82), a 3-band jump. The home occupies a cul-de-sac position.
Across 2001–2014, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £232,000 sits 80.5% above the 2014 sale of £128,500. 12 years since the last transfer (June 2014). Across the public record there are 4 sales, relatively high churn for a single property.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Private gardenRear
- GarageSingle
- Cul-de-sacYes
Building
- Heating systemGas
- RefurbishedYes
Energy performance
5 Cowper Close's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
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Planning history
5 Cowper Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Sale price has at least doubled since 2001.
£232,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 13 years.
£128,500
Growth on file: 5.8% per year over 13 years.
Sales timeline
12 June 2014Most recent
£128,500
+13.7%over 3 years26 May 2011
£113,000
+50.7%over 9 years8 February 2002
£75,000
+21.0%over 7 months15 July 2001
£62,000
Median price across the last 5 sales in NN9 5PE: £112,000 (2025–2001).
Nearby sales in NN9 5PE
6 Cowper Close, Irthlingborough, Wellingborough, NN9 5PE
Sold Aug 2025
£100,0002 Cowper Close, Irthlingborough, Wellingborough, NN9 5PE
Sold Aug 2021
£225,0001 Cowper Close, Irthlingborough, Wellingborough, NN9 5PE
Sold May 2015
£132,0003 Cowper Close, Irthlingborough, Wellingborough, NN9 5PE
Sold Nov 2001
£95,000
Versus other Cowper Close homes
On years held, 5 Cowper Close stands well clear of the street.
Price per m²
£1,512
Street avg £1,821
Floor Area
85 m²
Street avg 83 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
6.2 t/year
Street avg 3.6 t/year
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The neighbourhood at a glance
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
Thomas Flawn Road — bus stop.
Closest school
0.8 km
Irthlingborough Nursery and Infant School. 10 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
47.4dB

Night-time· 23:00 – 07:00
38.7dB







