Planning application
8 Thyra Grove London N12 8HB
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Single storey rear extension with a maximum proposed depth of 4.9m, a maximum height of 3.42m and an eaves height of 2.93m
As published by the council, reference 26/2358/PNH
Application record
- Reference
- 26/2358/PNH
- Type
- Prior Notification (Householder)
- Status
- Prior Approval Required and Refused
- Decision
- Refused As published: Prior Approval Required and Refused
- Received
- 22 Jun 2026
- Validated
- 23 Jun 2026
- Decided
- 4 Aug 2026
- Ward
- West Finchley
- Decision by
- Delegated Decision
- Postcode
- N12 8HB
Site history
Applications at this address on the Barnet register
This site has had 4 applications since 2026: 1 approved, 2 refused.
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26/2357/PNH Refused
8 Thyra Grove London N12 8HB
Single storey rear extension with a maximum proposed depth of 6.0m, a maximum height of 3.42m and an eaves height of 2.93m.
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26/1850/PNH Withdrawn
8 Thyra Grove London N12 8HB
Single storey rear extension following demolition of existing rear extension at a proposed depth of 6.0m from outrigger and 6.0m from the original rear wall, a maximum height of 3.42m and an eaves height of 2.93m
-
26/0926/192 Granted
8 Thyra Grove London N12 8HB
Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights
Timeline
Dates from the published record
-
22 Jun 2026
Received by Barnet
-
23 Jun 2026
Validated
Checked as complete and ready for consideration.
-
4 Aug 2026
Decision issued: Prior Approval Required and Refused
-
9 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
10 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this refusal means
Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About prior approval applications
Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
8 Thyra Grove London N12 8HB
Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights
Granted Lawful development Extension Loft or dormer +1 5 docs -
8 Thyra Grove London N12 8HB
Single storey rear extension with a maximum proposed depth of 6.0m, a maximum height of 3.42m and an eaves height of 2.93m.
Refused Prior approval Extension 10 docsSmall domestic -
8 Thyra Grove London N12 8HB
Single storey rear extension following demolition of existing rear extension at a proposed depth of 6.0m from outrigger and 6.0m from the original rear wall, a maximum height of 3.42m and an eaves height of 2.93m
Withdrawn Prior approval Extension Demolition 11 docsSmall domestic -
11 Thyra Grove London N12 8HB
77% historically approved · decision due ~27 Nov
Single storey rear extension with new patio area. Changes to ground floor side fenestration
Awaiting decision Householder Extension Windows or glazingSmall domestic -
11 Thyra Grove London N12 8HB
56% historically approved · decision due ~16 Feb
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory
Awaiting decision Prior approval Extension Demolition 7 docsSmall domestic -
11 Thyra Grove London N12 8HB
2No. single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory.
Granted Prior approval Extension Demolition 9 docsSmall domestic
Other prior approval applications
In Barnet
-
26/3835/PNH Awaiting decision
3 Devonshire Crescent London NW7 1DN
Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.48 metres and eaves height of 3.00 metres. Following demolition of existing rear outrigger.
-
26/3832/PNH Awaiting decision
48 Alverstone Avenue Barnet EN4 8EB
Single storey rear extension with a proposed depth of 4.5 metres, maximum height of 3.15 metres and eaves height of 3 metres following demolition of existing rear extension.
-
26/3823/PNH Awaiting decision
7 Southbourne Crescent London NW4 2LB
Single storey rear extension added to an existing extension with the total extension measuring 6.00 metres deep, with a maximum height of 3.00 metres and an eaves height of 3.00 metres.
-
26/3809/PND Awaiting decision
10 Clifford Road Barnet EN5 5PG
Demolition of existing garage
-
26/3819/PNH Awaiting decision
78 Russell Lane London N20 0AP
2no. Single storey rear extensions with a proposed depth of 7.00 metres, maximum height of 3.60 metres and eaves height of 3.00 metres. Following demolition of the existing side/rear outrigger.