10 The Gardens Brookmans Park AL9 7UL Data via plota.co.uk
Proposal
Certificate of lawfulness for hip-gable loft conversion, construction of dormer window, insertion of skylights, insertion of flank window and installation of new front door Data via plota.co.uk
Application progress
Approved on 25 Mar 2026 · Delegated · Last checked 8 Sept 2026
Documents 13
Decision & officer reports 2
Plans & drawings 7
Other documents 4
Site constraints 3
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.
Every application in Welwyn Hatfield - and every UK council - as a live feed, an API, or a bulk CSV export.
Other new applications on this street
Nearby new applications
4 Brookmans Avenue Brookmans Park AL9 7QJ
Retention of single storey timber structure as gym and addition of storm porch
4 Brookmans Avenue Brookmans Park AL9 7QJ
Submission of details pursuant to Condition 4 (landscaping) on planning permissi...
The Brookmans Park Estate Brookmans Park Hertfordshire
Hardstanding and highway access upgrade
6 The Gardens Brookmans Park AL9 7UL
Certificate of lawfulness for the conversion of garage, elevational changes to f...
Important details
- Council
- Welwyn Hatfield
- Application type
- LAWFUL DEVELOPMENT - PROPOSED
- Postcode
- AL9 7UL
- Received
- 11 Feb 2026
- Validated
- 11 Feb 2026
- Parish
- North Mymms
- Case officer
- Show
- Decision
- Granted
- Decision date
- 25 Mar 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 42 days from validation, 14 days faster than Welwyn Hatfield's median of 56 for extensions. Approved, as 87% of extensions here are.
Plota live figures for extensions decided by Welwyn Hatfield in the last twelve months, from validation. Welwyn Hatfield decision record →
Consultation & key dates
- Comments by
- 23 Feb 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Welwyn Hatfield is slower than most councils at deciding householder applications, ranking #224 out of 296. 50% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) than the national average (90%).
Track this application
10 The Gardens Brookmans Park AL9 7UL
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.