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Get started5 Cowper Close is a three-bedroom detached house in Earls Barton, Northampton, Northampton (NN6 0PU). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (April 2017) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 81), a 3-band jump. Other recorded features include a conservatory. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 7.8% per year against 0.2% for the wider region. On a £-per-square-foot basis, the last sale (£361/sq ft) was about 97.2% above the typical sold price in the postcode. It changed hands recently, sold August 2025 for £420,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
5 Cowper Close's carbon output runs well above what efficient homes in the postcode produce.
Application for a non-material amendment to planning permission ref: WP/18/00035/FUL to allow the external facade to be rendered in white render finish with dark grey concrete tiles to slope of porch
Latest sale on 5 Cowper Close was the highest on Land Registry record across the postcode.
£400,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.8% per year over 8 years.
£420,000
Growth on file: 7.8% per year over 8 years.
On price per m², 5 Cowper Close stands well clear of the street.
Price per m²
£3,889
Street avg £2,157
Floor Area
108 m²
Street avg 107 m²
Habitable Rooms
5 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Crispin Road — bus stop.

Daytime· 07:00 – 23:00
50.4dB

Extension: Single storey · Front of property
The retrospective part of this proposal includes an infill extension to the front of the property, converting the canopy to indoor space and moving the front door to face the road. Mono pitch roof to replace flat roof above the old canopy.
20 August 2025Most recent
£420,000
+61.5%over 7 years19 December 2017
£260,000
+13.0%4 August 2017
£230,000
Median price across the last 5 sales in NN6 0PU: £240,000 (2023–2004).
4 Cowper Close Earls Barton Northampton
Sold Oct 2023
2 Cowper Close Earls Barton Northampton
Sold Sept 2020
1 Cowper Close Earls Barton Northampton
Sold Jun 2012
6 Cowper Close Earls Barton Northampton
Sold May 2011
8 Cowper Close Earls Barton Northampton
Sold May 2003
Street avg 5 rooms
CO₂ Emissions
6.5 t/year
Street avg 5.6 t/year
NN6 0PL
Closest school
0.7 km
Earls Barton Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
42.4dB
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