17 Cowgill Close, Northampton, NN3 8PB
About 17 Cowgill Close
17 Cowgill Close is a five-bedroom semi-detached house in Northampton (NN3 8PB). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (April 2026) shows a C (score 75), near the top of the C band. When first surveyed in August 2013 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Poor to Good; while wall efficiency dropped from Good to Very Poor. This certificate was lodged in the last six months, so the rating reflects current condition. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Untraded for 25 years, with the last transfer in March 2001. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 115 m² the property is well over the postcode median (72 m² across 24 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. Today's modelled estimate of £301,000 sits 370.3% above the 2001 sale of £64,000. On a £-per-square-foot basis, the last sale (£52/sq ft) was about 67% below the postcode norm. One planning record on file: an extension approved in 2020. Past consents include an extension, meaningful when judging how the property has evolved.
What this property has
Inside
- Bedrooms5
- Bathrooms1
- Dining roomYes
- EnsuiteYes
Outside
- Cul-de-sacYes
Building
- Previously extendedYes
- RefurbishedYes
Everything you need to know about 17 Cowgill Close
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Certificate validity
Valid until 25 April 2036
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
17 Cowgill Close has an approved side and rear extension on the planning record.
1 application on record at 17 Cowgill Close, Northampton, NN3 8PB
- Apr 2020ExtensionFullOutcome in report
Extension: Side and rear of property
Two storey side and single storey rear extensions
- Documents
- 12 docs on file
- Reference
- N/2020/0183
Unlock 17 Cowgill Close, Northampton, NN3 8PB's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 20 notable nearby
- The 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
17 Cowgill Close's modelled value sits at over four times its earliest registered sale price (2001).
£301,000
Modelled from EPC, postcode comparables.
£64,000
Recorded with HM Land Registry.
Sales timeline
5 March 2001Most recent
£64,000
Median price across the last 5 sales in NN3 8PB: £230,000 (2025–2023).
Nearby sales in NN3 8PB
Versus other Cowgill Close homes
Price per m² for 17 Cowgill Close lags the street by a wide margin.
Price per m²
£557
Street avg £2,578
Floor Area
115 m²
Street avg 79 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.5 t/year
Everything you need to know about 17 Cowgill Close
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Similar properties nearby
The neighbourhood at a glance
Crime
461/mo
Falling 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






