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Planning application

58 Northiam London N12 7HJ

Awaiting decision Barnet 25/4786/HSE Householder Application

Works: Extension Demolition Windows or glazing Small domestic

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

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

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.

As published by the council, reference 25/4786/HSE

Application record

Reference
25/4786/HSE
Type
Householder Application
Status
Pending Consideration
Received
1 Dec 2025
Validated
2 Dec 2025
Ward
Totteridge & Woodside
Postcode
N12 7HJ

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2025.

  • 25/4079/HSE Awaiting decision

    58 Northiam London N12 7HJ

    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

    Submitted 10 Oct 2025 Householder

Timeline

Dates from the published record

  1. 1 Dec 2025

    Received by Barnet

  2. 2 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 27 January 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Barnet took a median of 46 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Sureplan Technical Ltd Agent, registered in Welwyn

Active · incorporated 2014 · Welwyn

8 applications on PlanIndex · across 3 councils

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

15 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 happens while it is decided

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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

  • 58 Northiam London N12 7HJ

    25/4079/HSE Submitted 10 Oct 2025 50 yards 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

  • 40 Northiam London N12 7HJ

    26/2250/HSE Submitted 16 Jun 2026 50 yards 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

  • 40 Northiam London N12 7HJ

    26/0613/HSE Submitted 17 Feb 2026 100 yards away

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

    Refused Householder Extension Demolition 14 docs
    Small domestic

  • 40 Northiam London N12 7HJ

    25/4202/192 Submitted 20 Oct 2025 100 yards away

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

    Granted Lawful development Extension Loft or dormer +1 8 docs

  • 40 Northiam London N12 7HJ

    25/4397/PNH Submitted 4 Nov 2025 100 yards 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

  • 2 Michleham Down London N12 7JN

    24/1574/192 Submitted 19 Apr 2024 150 yards away

    Erection of a rear outbuilding

    Granted Lawful development 5 docs

In Barnet

  • 26/3853/HSE Awaiting decision

    30 Goldsmith Avenue London NW9 7HB

    Single storey rear extension following demolition of the existing extension

    23 Oct 2026 Householder
  • 26/3856/HSE Awaiting decision

    229 Hale Drive London NW7 3EH

    Single storey rear extension

    23 Oct 2026 Householder
  • 26/3863/HSE Awaiting decision

    12 Vale Drive Barnet EN5 2ED

    Single storey side and rear extension

    Received 23 Oct, published by the council 24 Oct 2026 Householder
  • 26/3858/HSE Awaiting decision

    131 Rushgrove Avenue London NW9 6RG

    Single storey rear extension. New front porch

    Received 23 Oct, published by the council 24 Oct 2026 Householder
  • 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