20 Cowgill Close, Northampton, NN3 8PB
About 20 Cowgill Close
20 Cowgill Close is a three-bedroom semi-detached house in Northampton (NN3 8PB). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1976-1982 and council tax band B. The latest certificate (September 2023) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2013. Between certificates, wall efficiency went from Poor to Good; while lighting dropped from Very Good to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
Across 1995–2024, sale prices on this property compounded at 6.7% per year. On a £-per-square-foot basis, the last sale (£294/sq ft) was about 93.8% above the typical sold price in the postcode. Sold May 2024 for £253,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Everything you need to know about 20 Cowgill Close
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
Low energy lighting percentage decreased
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Planning history
20 Cowgill Close has no planning applications on record.
But the area is active
20 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Price for 20 Cowgill Close has grown more than fourfold since the 1995 starting point.
£256,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 29 years.
£253,000
Growth on file: 6.7% per year over 29 years.
Sales timeline
16 May 2024Most recent
£253,000
+68.7%over 9 years23 October 2014
£149,995
+284.6%over 19 years27 July 1995
£39,000
Median price across the last 5 sales in NN3 8PB: £230,000 (2025–2022).
Nearby sales in NN3 8PB
Versus other Cowgill Close homes
Years Held for 20 Cowgill Close lags the street by a wide margin.
Price per m²
£3,163
Street avg £2,468
Floor Area
80 m²
Street avg 80 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 3.4 t/year
Everything you need to know about 20 Cowgill Close
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Maidencastle — bus stop.
Closest school
0.4 km
Blackthorn Primary School. 21 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
53.8dB

Night-time· 23:00 – 07:00
44.0dB






