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Planning application

3 Oakleigh Park South London N20 9JS

Granted Barnet 26/1023/HSE Householder Application

Works: Extension Windows or glazing Small domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use

As published by the council, reference 26/1023/HSE

Application record

Reference
26/1023/HSE
Type
Householder Application
Status
Approved subject to conditions
Decision
Approve subject to conditions
Received
17 Mar 2026
Validated
17 Mar 2026
Decided
11 May 2026
Ward
Whetstone
Decision by
Delegated Decision
Postcode
N20 9JS

Site history

Applications at this address on the Barnet register

This site has had 4 applications since 2026: 1 approved, 0 refused.

  • 26/2417/NMA Decided

    3 Oakleigh Park South London N20 9JS

    Non material amendment to planning permission 26/1023/HSE dated 11/05/2026 for 'Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use' Amendments includes adding a window to the right hand elevation of the rear extension

    Submitted 25 Jun 2026 Amendments
  • 26/1148/HSE Awaiting decision

    3 Oakleigh Park South London N20 9JS

    Single storey rear extension. Changes to fenestration including installation of double width garage door to return garage to original use and removal of side window. (AMENDED DESCRIPTION)

    Submitted 26 Mar 2026 Householder
  • 26/0171/HSE Awaiting decision

    3 Oakleigh Park South London N20 9JS

    Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use

    Submitted 16 Jan 2026 Householder

Timeline

Dates from the published record

  1. 17 Mar 2026

    Received by Barnet

  2. 11 May 2026

    Decision issued: Approve subject to conditions

  3. 25 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/2417/NMA Decided

    3 Oakleigh Park South London N20 9JS

    Non material amendment to planning permission 26/1023/HSE dated 11/05/2026 for 'Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use' Amendments includes adding a window to the right hand elevation of the rear extension

    Submitted 25 Jun 2026 Amendments

Who's behind it

Company information only, from the register and Companies House

A.J Ferryman & Associates Agent

105 applications on PlanIndex · across 13 councils · 90% granted

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Documents

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

10 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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What this grant of permission means

Barnet granted permission on 11 May 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 3 Oakleigh Park South London N20 9JS

    26/1148/HSE Submitted 26 Mar 2026 0m away

    77% historically approved · decision due ~21 May

    Single storey rear extension. Changes to fenestration including installation of double width garage door to return garage to original use and removal of side window. (AMENDED DESCRIPTION)

    Awaiting decision Householder Extension Windows or glazing 9 docs
    Small domestic

  • 3 Oakleigh Park South London N20 9JS

    26/0171/HSE Submitted 16 Jan 2026 0m away

    77% historically approved · decision due ~13 Mar

    Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use

    Awaiting decision Householder Extension Windows or glazing 8 docs
    Small domestic

  • 14 Oakleigh Avenue London N20 9JH

    TPP/0705/25 Submitted 27 Oct 2025 98m away

    1 x Lime (applicants ref. T2) - Reduce by 2-3 metres back to most recent previous pruning points, leaving no furnishings. Standing in Group G68 of Tree Preservation Order. 1 x Lime (applicants ref. T3) - Re-pollard back to most recent previous points, leaving no furnishings. Standing in Group G68 of Tree Preservation Order.

    Granted Trees 4 docs

  • 3 Oakleigh Park South London N20 9JS

    26/2417/NMA Submitted 25 Jun 2026 102m away

    69% historically approved · decision due ~20 Aug

    Non material amendment to planning permission 26/1023/HSE dated 11/05/2026 for 'Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use' Amendments includes adding a window to the right hand elevation of the rear extension

    Decided Amendments Extension Windows or glazing
    Small domestic

  • The Mews Cottage 20 And A Half Oakleigh Park South London N20 9JU

    26/1578/CON Submitted 27 Apr 2026 120m away

    95% historically approved · decision due ~22 Jun

    Submission of details of condition 4 (Cycle parking/storage) 5 (Refuse storage/collection) 9 (Enclosure/boundary treatment) pursuant to planning permission 26/0724/FUL dated 22/04/2026

    Awaiting decision Conditions 2 docs

  • 30 Oakleigh Avenue London N20 9JH

    TPP/0760/25 Submitted 14 Nov 2025 123m away

    1 x Large Oak - Remove three large dead branches in the low/mid canopy overhanging the neighbouring garden. Standing in Group G124 of Tree Preservation Order. (Exempt works)

    Decided Trees 4 docs

In Barnet

  • 26/3422/HSE Awaiting decision

    Revelstroke 28 Totteridge Village London N20 8JN

    Construction of a swimming pool and associated hard and soft landscaping following demolition of the existing shed including new access steps. Alterations to the ground level. Replacement of an existing timber decking terrace with a paved terrace.

    18 Sep 2026 Householder
  • 26/3396/HSE Awaiting decision

    43 Dukes Avenue London N3 2DE

    Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof

    17 Sep 2026 Householder
  • 26/3410/HSE Awaiting decision

    54 Ferney Road Barnet EN4 8LE

    Single storey rear extension with alteration to the raised terrace area including new access steps to garden

    17 Sep 2026 Householder
  • 26/3415/HSE Awaiting decision

    11 Downage London NW4 1AS

    Alterations and extensions to the roof including rear dormer window and the partial removal of the roof of the first floor rear extension, creation of a new crown roof over main roof and rear extension, 1no. front, 1no. side, 1no. rear facing rooflight and 1no. on crown roof

    17 Sep 2026 Householder
  • 26/3382/HSE Awaiting decision

    11 Layfield Crescent London NW4 3UJ

    Part single, part two storey rear extension with flat roof and 1no. skylight

    16 Sep 2026 Householder