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Planning application

11 Northiam London N12 7ET

Granted Barnet 25/3429/HSE Householder Application

Works: 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

Conversion of the existing garage into habitable room, insertion of window to replace garage door. Alterations to existing rear patio and erection of a rear outbuilding

As published by the council, reference 25/3429/HSE

Application record

Reference
25/3429/HSE
Type
Householder Application
Status
Approved subject to conditions
Decision
Granted As published: Approve subject to conditions
Received
15 Aug 2025
Validated
20 Aug 2025
Decided
13 Oct 2025
Ward
Totteridge & Woodside
Decision by
Delegated Decision
Postcode
N12 7ET

Timeline

Dates from the published record

  1. 15 Aug 2025

    Received by Barnet

  2. 20 Aug 2025

    Validated

    Checked as complete and ready for consideration.

  3. 13 Oct 2025

    Decision issued: Approve subject to conditions

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Manu Design Limited Agent, a design practice registered in Harrow

Active · incorporated 2009 · Harrow

81 applications on PlanIndex · across 13 councils · 73% granted

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Documents

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

11 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 13 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 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 0.3 miles

  • 39 Northiam London N12 7ET

    26/2641/192 Submitted 15 Jul 2026 50 yards away

    79% historically approved · decision due ~9 Sep

    Conversion of the existing garage into habitable room, insertion of window to replace the garage door

    Awaiting decision Windows or glazing

  • 34 Northiam London N12 7HA

    25/3729/PNH Submitted 10 Sep 2025 150 yards away

    56% historically approved · decision due ~5 Nov

    Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.95 metres.

    Awaiting decision Prior approval Extension 6 docs
    Small domestic

  • 22 Laurel Way London N20 8HZ

    26/2384/192 Submitted 23 Jun 2026 150 yards away

    79% historically approved · decision due ~18 Aug

    Conversion of the existing garage into habitable room, insertion of window to replace garage door. Changes to side fenestration. Removal and alteration of existing roof above existing two storey side and rear extension (Phase 1). Roof extension involving hip to gable, rear dormer window with juliette balcony and 2no. front facing rooflights (Phase 2). (Phase 2 to commence when phase 1 completed) (AMENDED DESCRIPTION)

    Awaiting decision Extension Loft or dormer +1

  • 22 Laurel Way London N20 8HZ

    26/2385/S73 Submitted 23 Jun 2026 150 yards away

    93% historically approved · decision due ~19 Aug

    Variation of condition 1 (Approved plans) pursuant to planning permission 25/4391/HSE dated 22/12/2025 for `Single storey rear extension with 2no. rooflights.` Amendment include increase of depth of the rear extension

    Awaiting decision Conditions Extension Loft or dormer 3 docs
    Small domestic

  • 22 Laurel Way London N20 8HZ

    25/4527/192 Submitted 13 Nov 2025 150 yards away

    Conversion of the existing garage into habitable room, insertion of window to replace garage door. Roof extension involving rear dormer window

    Granted Lawful development Extension Loft or dormer +1 3 docs

  • 22 Laurel Way London N20 8HZ

    25/4391/HSE Submitted 4 Nov 2025 150 yards away

    Single storey rear extension with 2no. rooflights

    Granted Householder Extension Loft or dormer 7 docs
    Small domestic

In Barnet

  • 26/3827/HSE Awaiting decision

    43 Hermitage Lane London NW2 2HE

    Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

    22 Oct 2026 Householder
  • 26/3833/HSE Awaiting decision

    47 Holne Chase London N2 0QG

    Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

    22 Oct 2026 Householder
  • 26/3815/HSE Awaiting decision

    17 Hurstwood Road London NW11 0AS

    Single storey rear extension

    21 Oct 2026 Householder
  • 26/3800/HSE Awaiting decision

    29 Monks Avenue Barnet EN5 1BZ

    Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

    Received 20 Oct, published by the council 21 Oct 2026 Householder
  • 26/3791/HSE Awaiting decision

    149 Montrose Avenue Edgware HA8 0DZ

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

    Received 20 Oct, published by the council 21 Oct 2026 Householder