37 Sunbury Avenue London NW7 3SL Data via plota.co.uk
Proposal
Two storey side extension including conversion of the existing garage into habitable room, insertion of window to replace the garage door. Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack… Data via plota.co.uk
Application progress
Approved on 14 Aug 2026 · Delegated Decision · Last checked 15 Aug 2026
Documents 16
Decision & officer reports 1
Plans & drawings 12
Application forms 2
Other documents 1
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.
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Important details
- Council
- Barnet
- Application type
- Householder Application
- Postcode
- NW7 3SL
- Received
- 18 Jun 2026
- Validated
- 19 Jun 2026
- Ward
- Edgware
- Case officer
- Show
- Target decision
- 14 Aug 2026
- Decision
- Approve subject to conditions
- Decision date
- 14 Aug 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- John Perrin & Sons Ltd
How this decision compares
Decided in 56 days from validation, about the council's usual 53 days. Approved, as 74% 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 15 Aug 2026
Consultation & key dates
- Alt. reference
- PP-15021929
- Site or press notice
- 25 Jun 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.
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37 Sunbury Avenue London NW7 3SL
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