Skip to content
PlanIndex Get alerts
Menu

Planning application

3B Marion Road London NW7 4AL

Awaiting decision Barnet 25/4148/FUL Full Application

Works: Extension Loft or dormer Windows or glazing

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

Proposal

Roof extension with rear dormer window and 1no. front facing rooflight

As published by the council, reference 25/4148/FUL

Application record

Reference
25/4148/FUL
Type
Full Application
Status
Pending Consideration
Received
16 Oct 2025
Validated
17 Oct 2025
Ward
Mill Hill
Postcode
NW7 4AL

Timeline

Dates from the published record

  1. 16 Oct 2025

    Received by Barnet

  2. 17 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 12 December 2025, 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 43 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in Swansea

37 applications on PlanIndex · across 8 councils · 73% granted

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

See who's behind it

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.

Trade members open them 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 full applications in a median of 56 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 19 Byron Road London NW7 4AH

    26/0407/HSE Submitted 3 Feb 2026 64m away

    77% historically approved · decision due ~31 Mar

    Single storey side infill extension with 4no. rooflights

    Awaiting decision Householder Extension Loft or dormer 7 docs
    Small domestic

  • 19 Byron Road London NW7 4AH

    25/5109/192 Submitted 18 Dec 2025 64m away

    Roof extension involving rear and side dormer windows and 2no. front facing rooflights, following demolition of chimney stack (AMENDED DESCRIPTION)

    Decided Lawful development Extension Loft or dormer +2 6 docs

  • 19 Byron Road London NW7 4AH

    26/1563/HSE Submitted 27 Apr 2026 66m away

    77% historically approved · decision due ~22 Jun

    Single storey side extension to existing rear outrigger with pitched roof and rooflights. Alterations to side and rear fenestration

    Awaiting decision Householder Extension Loft or dormer +1 6 docs
    Small domestic

  • 111 Daws Lane London NW7 4SJ

    24/1624/HSE Submitted 23 Apr 2024 81m away

    Single storey side extension

    Granted Householder Extension 6 docs
    Small domestic

  • 4 Winterstoke Gardens London NW7 2RA

    TCP/0712/25 Submitted 28 Oct 2025 158m away

    1 x Oak (applicants ref. 1) - Crown reduce by 20% to allow light. 1 x Oak (applicants ref. 2) - Crown thin to reduce overhang on access road.

    Decided Trees 2 docs

  • 2 Winterstoke Gardens London NW7 2RA

    TCP/0080/26 Submitted 12 Feb 2026 163m away

    4 X Prunus Blackthorn and Plum (Applicant's Ref TR #1, TR #2, TR #3 & TR #4) Fell and replace with Magnolia, Amelanchier, Cornus.

    Decided Trees 4 docs

In Barnet

  • 26/3239/FUL Awaiting decision

    Henley Court Watford Way London NW4 4SR

    Construction of additional floor to provide 7no. self-contained flats. Construction of two storey side extension with rooms in the roofspace to provide 2no. self-contained flats. Associated refuse storage

    4 Sep 2026 Full applications
  • 26/3238/FUL Awaiting decision

    2 North End Road London NW11 7PH

    New shopfront with double glazed front folding doors

    4 Sep 2026 Full applications
  • 26/3230/FUL Awaiting decision

    50 Ballards Lane London N3 2DP

    Installation of a kitchen extract ventilation system within existing commercial unit on ground floor and flat roof with a discharge flue fixed to the rear elevation, together with associated internal alterations

    3 Sep 2026 Full applications
  • 26/3199/FUL Awaiting decision

    494 Finchley Road London NW11 8DE

    Demolition of the existing dwelling and erection of a two storey building over basement car park with rooms in the roofspace to provide 6no. self-contained residential dwellings. Associated amenity space, cycle stores and refuse/recycling storage

    1 Sep 2026 Full applications
  • 26/3200/FUL Awaiting decision

    289 Regents Park Road London N3 3JY

    Removal of front extension. Single storey side extension including new walls to replace existing boundary fences. (Part Retrospective)

    1 Sep 2026 Full applications