21 Thorburn Road Northampton NN3 3DA Data via plota.co.uk
Proposal
Proposed two storey annexe to side and rear of dwelling Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 29 Nov 2026 and 15 Dec 2026, from West Northamptonshire's recent extensions.
Documents 14
Plans & drawings 11
Application forms 2
Other documents 1
Site constraints 2
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 1
Last sold for £370,000 in June 2005. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Every application in West Northamptonshire - and every UK council - as a live feed, an API, or a bulk CSV export.
Nearby new applications
21 Draycott Close Northampton NN3 3BD
Proposed side extension with front and rear dormer
10 Portchester Gardens Northampton NN3 9UP
Construction of outbuilding with excavation garden works (part retrospective)
1 Chilwell Court Northampton NN3 9UR
Single Storey Side Extensions
Unit 2 Marquee Drive Northampton NN3 9HY
Installation of external mechanical plant, external alterations to shopfront ele...
Unit 2 Marquee Drive Northampton NN3 9HY
1no. fascia lettering sign, 1 no. projecting sign, 2no. projecting barci signs a...
1 Milverton Crescent Northampton NN3 3AT
Proposed first floor dormer extension to side elevation
Important details
- Council
- West Northamptonshire
- Application type
- Householder Planning Permission
- Postcode
- NN3 3DA
- Received
- 24 Aug 2026
- Validated
- 23 Sept 2026
- Ward
- Weston Favell and Abington Vale Ward
- Parish
- Northampton Town Council
- Target decision
- 18 Nov 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
Decision outlook
Day 35 of the 56-day target. West Northamptonshire usually decides extensions by day 74.
Plota live figures for extensions decided by West Northamptonshire in the last twelve months, from validation. West Northamptonshire decision record →
Consultation & key dates
- Comments by
- 24 Oct 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
West Northamptonshire is one of the slowest councils in England for householder decisions, ranking #295 out of 296. The council extends the time limit on 79% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Track this application
21 Thorburn Road Northampton NN3 3DA
Tracking this application
Not there in a minute? Check junk - especially Hotmail and Outlook.
Go to your dashboard →Sign in to view contact details
Applicant and case-officer names are hidden from public view for privacy. Create a free Plota account - or sign back in - and we'll show them, plus you get a dashboard for alerts and tracked applications.

The consultation period closed on 24 Oct 2026.