20 Dartmouth Road London NW4 3HU Data via plota.co.uk
Proposal
Single storey rear extension infill with 2no. rooflights Data via plota.co.uk
Application progress
Refused on 8 Sept 2026 · Delegated Decision · Last checked 10 Sept 2026
Documents 5
Decision & officer reports 2
Plans & drawings 2
Site constraints 6
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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
- Barnet
- Application type
- Proposed Lawful Development Certificate
- Postcode
- NW4 3HU
- Received
- 21 Aug 2026
- Validated
- 21 Aug 2026
- Ward
- West Hendon
- Case officer
- Show
- Target decision
- 16 Oct 2026
- Decision
- Unlawful
- Decision date
- 8 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- ClearBox Collective
How this decision compares
Decided in 18 days from validation, 34 days faster than Barnet's median of 52 for extensions. Refused, as 25% of extensions here are.
Plota live figures for extensions decided by Barnet in the last twelve months, from validation. Barnet decision record →
Public comments
No public comments yet.
Last counted 10 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15129100
- Planning Portal ref
- PP-15129100
- Statutory expiry
- 16 Oct 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Barnet is faster than most councils at deciding householder applications, ranking #42 out of 296. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Barnet is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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20 Dartmouth Road London NW4 3HU
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