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Planning application

57 Westbury Road London N12 7PB

Decided Barnet 26/0114/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Roof extension involving side/rear wraparound dormer window and 1no. front, 1no. side facing rooflight

As published by the council, reference 26/0114/192

Application record

Reference
26/0114/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Lawful
Received
13 Jan 2026
Validated
13 Jan 2026
Decided
19 Jan 2026
Ward
West Finchley
Decision by
Delegated Decision
Postcode
N12 7PB

Timeline

Dates from the published record

  1. 13 Jan 2026

    Received by Barnet

  2. 19 Jan 2026

    Decision issued: Lawful

  3. 10 Aug 2026

    Added to PlanIndex

Documents

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.

Trade members open them from here.

Open the documents

After the decision

The process from here

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 57 Westbury Road London N12 7PB

    26/1617/HSE Submitted 29 Apr 2026 0m away

    77% historically approved · decision due ~24 Jun

    Ground floor side extension. New balcony at first floor level and addition of a green roof on the existing ground floor extension. Alteration to the existing ground floor balcony, Alterations to fenestration including changes to rooflights

    Awaiting decision Householder Extension Loft or dormer +1 14 docs
    Domestic

  • 57 Westbury Road London N12 7PB

    25/4800/HSE Submitted 1 Dec 2025 0m away

    77% historically approved · decision due ~27 Jan

    Single storey side extension following demolition of the existing extension. Alterations to first floor side roof. First floor rear extension. Changes to side and front fenestration

    Awaiting decision Householder Extension Demolition +1 10 docs
    Small domestic

  • 65 Westbury Road London N12 7PB

    26/2670/HSE Submitted 17 Jul 2026 44m away

    77% historically approved · decision due ~11 Sep

    Erection of a rear outbuilding following demolition of the existing outbuilding

    Awaiting decision Householder Demolition
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  • 57 Westbury Road London N12 7PB

    26/2402/192 Submitted 24 Jun 2026 44m away

    79% historically approved · decision due ~20 Aug

    Changes to fenestration including insertion of 3no. new windows to north elevation, 1no. new window to south elevation. 2no. new windows to rear elevation, alterations to front elevation: front door, rooflights and windows

    Awaiting decision Loft or dormer Windows or glazing

  • 32 Walmington Fold London N12 7LR

    24/1695/HSE Submitted 29 Apr 2024 164m away

    Single storey side and rear extension following demolition of the existing conservatory. Roof extension involving hip to gable, rear dormer window with juliette balcony and 2no. front facing rooflights

    Granted Householder Extension Loft or dormer +2 4 docs
    Small domestic

  • 40 Westbury Road London N12 7PD

    25/4847/192 Submitted 3 Dec 2025 169m away

    79% historically approved · decision due ~29 Jan

    Roof extension involving rear dormer window and 3no. front facing rooflights

    Awaiting decision Lawful development Extension Loft or dormer +1 7 docs

In Barnet

  • 26/2679/192 Decided

    21 Myddelton Park London N20 0JH

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

    20 Jul 2026 Lawful development
  • 26/1907/191 Decided

    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)

    21 May 2026 Lawful development
  • 26/2059/192 Decided

    Low Ridge Rowley Lane Barnet EN5 3HS

    Erection of a rear outbuilding

    3 Jun 2026 Lawful development
  • 26/2066/192 Decided

    355 Hendon Way London NW4 3NB

    Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

    3 Jun 2026 Lawful development
  • 26/1663/192 Decided

    152 Deans Lane Edgware HA8 9NT

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    5 May 2026 Lawful development