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Planning application

143 Colindale Avenue London NW9 5HB

Granted Barnet 25/3364/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Roof extension involving rear dormer window and 2no. front facing rooflights

As published by the council, reference 25/3364/192

Application record

Reference
25/3364/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Granted As published: Lawful
Received
12 Aug 2025
Validated
12 Aug 2025
Decided
7 Oct 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;

    Submitted 8 Oct 2026 Prior approval
  • 25/4749/192 Awaiting decision

    143 Colindale Avenue London NW9 5HB

    Erection of a rear outbuilding

    Submitted 27 Nov 2025 Lawful development
  • 25/3362/192 Refused

    143 Colindale Avenue London NW9 5HB

    Erection of a garden outhouse

    Decided 17 Oct 2025 Lawful development
  • 25/3363/PNH Refused

    143 Colindale Avenue London NW9 5HB

    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

    Decided 17 Sep 2025 Prior approval

Timeline

Dates from the published record

  1. 12 Aug 2025

    Received by Barnet

  2. 7 Oct 2025

    Decision issued: Lawful

  3. 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 record

Documents

Plans, drawings, consultee responses and the officer's report

6 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 documents

What this grant of permission means

Barnet granted permission on 7 October 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 143 Colindale Avenue London NW9 5HB

    25/4749/192 Submitted 27 Nov 2025 50 yards away

    80% historically approved · decision due ~22 Jan

    Erection of a rear outbuilding

    Awaiting decision Lawful development 3 docs

  • 143 Colindale Avenue London NW9 5HB

    25/3362/192 Submitted 12 Aug 2025 50 yards away

    Erection of a garden outhouse

    Refused Lawful development 6 docs

  • 143 Colindale Avenue London NW9 5HB

    25/3363/PNH Submitted 12 Aug 2025 50 yards away

    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

    Refused Prior approval Extension 5 docs
    Small domestic

  • 1 Charcot Road London NW9 5HG

    26/1860/CON Submitted 18 May 2026 50 yards away

    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

    26/0013/FUL Submitted 5 Jan 2026 50 yards away

    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

    25/4281/S73 Submitted 27 Oct 2025 50 yards away

    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

In Barnet

  • 26/2679/192 Granted

    21 Myddelton Park London N20 0JH

    Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

    Received 20 Jul, published by the council 7 Aug 2026 Lawful development
  • 26/1362/191 Refused

    145 Cotswold Gardens London NW2 1PL

    Use as a House in Multiple Occupation (HMO) for 6 people

    Received 14 Apr, published by the council 25 Jul 2026 Lawful development
  • 26/1907/191 Granted

    8 Golders Manor Drive London NW11 9HT

    Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

    Received 21 May, published by the council 16 Aug 2026 Lawful development
  • 26/2392/192 Refused

    6 Mostyn Road Edgware HA8 0JD

    New front hardstanding and vehicular access to provide off-street parking

    Received 23 Jun, published by the council 9 Aug 2026 Lawful development
  • 26/2059/192 Refused

    Low Ridge Rowley Lane Barnet EN5 3HS

    Erection of a rear outbuilding

    Received 3 Jun, published by the council 16 Aug 2026 Lawful development