Planning application
143 Colindale Avenue London NW9 5HB
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 depth of 6.00 metres, a maximum height of 2.90 metres and an eaves height of 2.85 metres
As published by the council, reference 25/3363/PNH
Application record
- Reference
- 25/3363/PNH
- Type
- Prior Notification (Householder)
- Status
- Prior Approval Required and Refused
- Decision
- Refused As published: Prior Approval Required and Refused
- Received
- 12 Aug 2025
- Validated
- 21 Aug 2025
- Decided
- 17 Sep 2025
- Ward
- Colindale South
- Decision by
- Delegated Decision
- Postcode
- NW9 5HB
Site history
Applications at this address on the Barnet register
This site has had 5 applications since 2025: 1 approved, 2 refused.
-
26/3647/PNH Awaiting decision
143 Colindale Avenue London NW9 5HB
Single storey rear/side extension with a proposed depth of 6 metres, maximum height of 2.9 metres and eaves height of 2.85 metres;
-
25/4749/192 Awaiting decision
143 Colindale Avenue London NW9 5HB
Erection of a rear outbuilding
-
25/3364/192 Granted
143 Colindale Avenue London NW9 5HB
Roof extension involving rear dormer window and 2no. front facing rooflights
-
25/3362/192 Refused
143 Colindale Avenue London NW9 5HB
Erection of a garden outhouse
Timeline
Dates from the published record
-
12 Aug 2025
Received by Barnet
-
21 Aug 2025
Validated
Checked as complete and ready for consideration.
-
17 Sep 2025
Decision issued: Prior Approval Required and Refused
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Ags Limited Agent, registered in Uxbridge
Active · incorporated 1991 · Uxbridge
12 applications on PlanIndex · across 7 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
5 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
-
143 Colindale Avenue London NW9 5HB
80% historically approved · decision due ~22 Jan
Erection of a rear outbuilding
Awaiting decision Lawful development 3 docs -
143 Colindale Avenue London NW9 5HB
Roof extension involving rear dormer window and 2no. front facing rooflights
Granted Lawful development Extension Loft or dormer +1 6 docs -
-
1 Charcot Road London NW9 5HG
Submission of details of Condition 4 (Construction Management and Logistics Plan) pursuant to planning appeal APP/N5090/W/24/3353229 dated 22/04/2025 planning ref 24/2588/FUL
Granted Conditions 4 docs -
1 Charcot Road London NW9 5HG
63% historically approved · decision due ~6 Mar
Partial retention of building and continuation of Cafe use. Internal layout of building to be amended with new partitioning and subdivision into three separate units - one retained for Cafe use, second unit to be used for retail and a third unit to be used as auxiliary storage for the use of an adjacent supermarket located at the ground floor retail unit
Awaiting decision Full applications 8 docs -
1 Charcot Road London NW9 5HG
Variation of Condition 3 (Hours of Use) of planning permission reference 25/0112/FUL dated 01/04/2025 for 'Change of use of the ground floor from a restaurant Class E(b) to a retail shop Class E(a).' Variation to include increase in opening hours from 07:00am to 11:00pm Monday-Sunday including Bank and Public Holidays to 07:00am to 02:00am Monday-Sunday including Bank and Public Holidays
Refused Conditions 28 docs
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 and attached pitched-roof structure
-
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.