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Get started1 Cowper Close is a three-bedroom semi-detached house in Irthlingborough, Wellingborough, Wellingborough (NN9 5PE). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1976-1982 and council tax band B. The latest certificate (February 2015) shows a D (score 59), a step below the typical UK home. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from February 2015, so improvements made since then won't be reflected. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 6.3% per year against 0% for the wider region. Today's modelled estimate of £207,000 sits 56.8% above the 2015 sale of £132,000. On a £-per-square-foot basis, the last sale (£159/sq ft) was about 44% above the typical sold price in the postcode. 11 years since the last transfer (May 2015).
Recommended upgrades on file would lift this property by multiple EPC bands.
This certificate is over 10 years old and is no longer valid.Expired 05 Feb 2025
Sale price has grown by over 3x since 1995.
£207,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 20 years.
£132,000
Growth on file: 6.3% per year over 20 years.
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On floor area, 1 Cowper Close runs well behind the street norm.
Price per m²
£1,714
Street avg £1,753
Floor Area
77 m²
Street avg 86 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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22 May 2015Most recent
£132,000
+17.9%over 8 years27 October 2006
£112,000
+180.0%over 11 years29 September 1995
£40,000
Median price across the last 5 sales in NN9 5PE: £113,000 (2025–2002).
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
4.3 t/year
Street avg 4.2 t/year
NN9 5QX
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