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Planning application

40 Northiam London N12 7HJ

Refused Barnet 26/0613/HSE Householder Application

Works: Extension Demolition Small domestic

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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Single storey side and rear extension including alteration to the existing access steps following demolition of the side garage and rear outbuilding

As published by the council, reference 26/0613/HSE

Application record

Reference
26/0613/HSE
Type
Householder Application
Status
Refused
Decision
Refuse
Received
17 Feb 2026
Validated
19 Feb 2026
Decided
16 Apr 2026
Ward
Totteridge & Woodside
Decision by
Delegated Decision
Postcode
N12 7HJ

Timeline

Dates from the published record

  1. 17 Feb 2026

    Received by Barnet

  2. 19 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 16 Apr 2026

    Decision issued: Refuse

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, a design practice registered in Leamington Spa

2 applications on PlanIndex

Trade members see who it is, their full track record, and every application they have filed.

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Documents

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

14 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

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • 40 Northiam London N12 7HJ

    25/4202/192 Submitted 20 Oct 2025 0m away

    Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window

    Decided Lawful development Extension Loft or dormer +1 8 docs

  • 40 Northiam London N12 7HJ

    25/4397/PNH Submitted 4 Nov 2025 0m away

    Single storey rear and side extension with a proposed depth from the rear wall of 4.00m, maximum height of 3.00m and eaves height of 3.00m following the demolition of the existing side extension and shed

    Refused Prior approval Extension Demolition 6 docs
    Small domestic

  • 71 Southover London N12 7HG

    26/0983/HSE Submitted 16 Mar 2026 47m away

    77% historically approved · decision due ~15 Jun

    Conversion of garage into habitable room including insertion of windows to replace existing garage doors and addition of new pitched roof with rooflight. Two storey side extension following demolition of existing store. Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights and increase in ridge height. Installation of solar panels. Alterations to ground floor rear projection including changes to fenestration and insertion of rooflights to flat roof. Addition of 1no. AC condenser unit and 1no. Air Source Heat Pump to side elevation. Removal of chimneys

    Awaiting decision Householder Extension Loft or dormer +3 6 docs
    Domestic

  • 40 Northiam London N12 7HJ

    26/2250/HSE Submitted 16 Jun 2026 90m away

    77% historically approved · decision due ~11 Aug

    Single storey side and rear extension including 3no. flat rooflights and alteration to the existing access steps following demolition of the side garage and rear outbuilding

    Decided Householder Extension Loft or dormer +1
    Several homes

  • 58 Northiam London N12 7HJ

    25/4079/HSE Submitted 10 Oct 2025 91m away

    77% historically approved · decision due ~8 Dec

    Part single, part two storey front, side and rear extensions following demolition of existing garage and ground floor side and rear extension. Insertion of 1no. new first floor window to flank elevation. Alterations to front steps. New front porch. Alterations to rear patio

    Awaiting decision Householder Extension Demolition +1 20 docs
    Small domestic

  • 58 Northiam London N12 7HJ

    25/4786/HSE Submitted 1 Dec 2025 91m away

    77% historically approved · decision due ~27 Jan

    Part single, part two storey front, side and rear extensions including alterations to front steps. new front porch and alterations to rear patio following demolition of existing garage and ground floor side and rear extension. Insertion of 1no. new first floor window to flank elevation.

    Awaiting decision Householder Extension Demolition +1 15 docs
    Small domestic

In Barnet

  • 26/3235/HSE Awaiting decision

    26 Mount Pleasant Barnet EN4 9HH

    Replace existing flat roof at ground floor rear elevation with pitched roof and 2no. rooflights

    4 Sep 2026 Householder
  • 26/3222/HSE Awaiting decision

    46 Michleham Down London N12 7JN

    Single storey side/rear extension with 3no. rooflights following demolition of the existing storage/utility structure. Changes to fenestration

    3 Sep 2026 Householder
  • 26/3219/HSE Awaiting decision

    53 Tudor Road Barnet EN5 5NW

    First floor rear extension with front and rear rooflights. Roof extension over existing garage

    2 Sep 2026 Householder
  • 26/3210/HSE Awaiting decision

    47 Pattison Road London NW2 2HL

    New front vehicular access to provide off-street parking. Removal of existing gate and shed, alterations to the existing front boundary wall and installation of close board fencing panels.

    2 Sep 2026 Householder
  • 26/3211/HSE Awaiting decision

    25 The Ridgeway London N11 3LG

    Single storey rear extension with 3no. rooflights following the demolition of existing conservatory

    2 Sep 2026 Householder