36 Thornton Road Little Heath Potters Bar EN6 1JH Data via plota.co.uk
Proposal
Certificate of lawfulness for installation of dormer window to the rear to facilitate a loft conversion with insertion of rooflights to existing front facing roof following the removal of first floor bedroom chimney breast Data via plota.co.uk
Application progress
Approved on 21 Jan 2026 · Delegated · Last checked 9 Sept 2026
Documents 20
Decision & officer reports 2
Plans & drawings 16
Consultation & comments 1
Other documents 1
Site constraints 2
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.
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Important details
- Council
- Welwyn Hatfield
- Application type
- LAWFUL DEVELOPMENT - PROPOSED
- Postcode
- EN6 1JH
- Received
- 24 Nov 2025
- Validated
- 26 Nov 2025
- Parish
- North Mymms
- Case officer
- Show
- Decision
- Granted
- Decision date
- 21 Jan 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 56 days from validation, about the council's usual 56 days. 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
- 24 Dec 2025
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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
36 Thornton Road Little Heath Potters Bar EN6 1JH
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