31 Haslemere Avenue London NW4 2PU Data via plota.co.uk
Proposal
Single storey front extension with new porch with canopy and front bay window. Part single, part two storey side and rear wraparound extensions with new rear raised terrace area with access steps to garden, 1no. rooflight and new roof. New hardstanding and alteration to the existing vehicular access to off-street parking. New side gate. Roof extension involving hip to gable to both sides, rear dormer windows, 3no. front and 1no. rear facing rooflights and new side gable window. Changes to fenestration. Data via plota.co.uk
Application progress
Approved on 25 Aug 2026 · Delegated Decision · Last checked 25 Aug 2026
Documents 32
Decision & officer reports 1
Statements & assessments 1
Plans & drawings 27
Application forms 2
Other documents 1
Site constraints 4
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
- NW4 2PU
- Received
- 1 Jul 2026
- Validated
- 1 Jul 2026
- Ward
- Hendon
- Case officer
- Show
- Target decision
- 26 Aug 2026
- Decision
- Approve subject to conditions
- Decision date
- 25 Aug 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Simon Miller Architects Ltd
How this decision compares
Decided in 55 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 25 Aug 2026
Consultation & key dates
- Alt. reference
- PP-15049524
- Site or press notice
- 9 Jul 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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31 Haslemere Avenue London NW4 2PU
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