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Planning application

48 Oakleigh Park North London N20 9AS

Decided Barnet 26/0149/192 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 hip to gable, rear dormer window and 2no. front facing rooflights. Alterations to 2no. existing chimney stacks.

As published by the council, reference 26/0149/192

Application record

Reference
26/0149/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Lawful
Received
15 Jan 2026
Validated
15 Jan 2026
Decided
20 Jan 2026
Ward
Whetstone
Decision by
Delegated Decision
Postcode
N20 9AS

Timeline

Dates from the published record

  1. 15 Jan 2026

    Received by Barnet

  2. 20 Jan 2026

    Decision issued: Lawful

  3. 10 Aug 2026

    Added to PlanIndex

Documents

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

4 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

  • 48 Oakleigh Park North London N20 9AS

    26/0431/PNH Submitted 5 Feb 2026 0m away

    58% historically approved · decision due ~7 Apr

    Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.50m and an eaves height of 3.00m following the demolition of the existing rear extension and garage

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  • 48 Oakleigh Park North London N20 9AS

    26/1381/HSE Submitted 15 Apr 2026 0m away

    77% historically approved · decision due ~11 Jun

    Single storey side extension with pitched roof and rooflights and single storey rear extension with flat roof and lantern rooflight following demolition of existing rear extension and detached garage. Roof extension including hip to gable, 1no. rear dormer with juliette balconies and 1no. front dormer window and associated alterations to side chimney. Removal of 1no. chimney to main roof. New raised rear patio. Changes to fenestration. Enlargement of existing front porch

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  • 42 Oakleigh Park North London N20 9AR

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  • 59 Oakleigh Park South London N20 9JL

    26/0318/192 Submitted 28 Jan 2026 99m away

    79% historically approved · decision due ~26 Mar

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  • 48 Oakleigh Park North London N20 9AS

    26/2242/CON Submitted 16 Jun 2026 111m away

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In Barnet

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