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Planning application

48 Oakleigh Park North London N20 9AS

Granted Barnet 26/0149/192 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 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
Granted As published: Lawful
Received
15 Jan 2026
Validated
15 Jan 2026
Decided
20 Jan 2026
Ward
Whetstone
Decision by
Delegated Decision
Postcode
N20 9AS

Site history

Applications at this address on the Barnet register

This site has had 4 applications since 2026: 2 approved, 0 refused.

  • 26/2242/CON Decided

    48 Oakleigh Park North London N20 9AS

    Submission of details of condition 6 (Foundations) 7 (Tree Protection & Method Statement) 9 (Excavation for services) 10 (Levels) pursuant to planning permission 26/1381/HSE dated 15/06/2026

    Submitted 16 Jun 2026
  • 26/1381/HSE Granted

    48 Oakleigh Park North London N20 9AS

    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

    Decided 15 Jun 2026 Householder
  • 26/0431/PNH Awaiting decision

    48 Oakleigh Park North London N20 9AS

    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

    Submitted 5 Feb 2026 Prior approval

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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Barnet granted permission on 20 January 2026, 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

  • 48 Oakleigh Park North London N20 9AS

    26/0431/PNH Submitted 5 Feb 2026 50 yards away

    56% 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

    Awaiting decision Prior approval Extension Demolition 5 docs
    Small domestic

  • 48 Oakleigh Park North London N20 9AS

    26/1381/HSE Submitted 15 Apr 2026 50 yards away

    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

    Granted Householder Extension Loft or dormer +2 7 docs
    Small domestic

  • 42 Oakleigh Park North London N20 9AR

    TPP/0273/26 Submitted 13 May 2026 100 yards away

    3 x Pine - Reduce the overhang to the drive by 2.0m back to growth points. Reduce the overhang to the neigbours drive by 2.0m back to growth points. Standing in Group G49 of Tree Preservation Order.

    Refused Trees 8 docs

  • Side Of 35 Oakleigh Park North London N20 9AN

    25/3563/LIC Submitted 28 Aug 2025 100 yards away

    Installation of 1no. 10m wooden pole

    Decided

  • 59 Oakleigh Park South London N20 9JL

    26/0318/192 Submitted 28 Jan 2026 100 yards away

    80% historically approved · decision due ~26 Mar

    Roof extension involving rear dormer window. New flat roof between existing pitched roof with new rooflights. Installation of solar panels

    Awaiting decision Lawful development Extension Loft or dormer +1 33 docs

  • 38 Oakleigh Park North London N20 9AR

    23/3582/HSE Submitted 17 Aug 2023 100 yards away

    Single storey side/rear ground floor extension (amended description)

    Granted Householder Extension 16 docs
    Small domestic

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