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Planning application

129 Russell Lane London N20 0AZ

Awaiting decision Barnet 25/3744/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer 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

Single storey side extension. Roof extension involving hip to gable with rear dormer windows and 1no. side facing rooflight

As published by the council, reference 25/3744/192

Application record

Reference
25/3744/192
Type
Proposed Lawful Development Certificate
Status
Pending Consideration
Received
11 Sep 2025
Validated
11 Sep 2025
Ward
Brunswick Park
Postcode
N20 0AZ

Timeline

Dates from the published record

  1. 11 Sep 2025

    Received by Barnet

  2. 10 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 6 November 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 42 days over the applications it decided in the last year.

Documents

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

5 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

The process from here

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 115 Russell Lane London N20 0AZ

    26/2632/192 Submitted 14 Jul 2026 2m away

    79% historically approved · decision due ~8 Sep

    Erection of a rear outbuilding

    Awaiting decision

  • 117 Russell Lane London N20 0AZ

    26/3177/HSE Submitted 28 Aug 2026 2m away

    77% historically approved · decision due ~28 Oct

    2no. single storey rear extensions following demolition of the existing garage and rear projection. Removal of front entrance canopy

    Awaiting decision Householder Extension Demolition
    Small domestic

  • 111 Russell Lane London N20 0AZ

    25/4810/HSE Submitted 2 Dec 2025 30m away

    77% historically approved · decision due ~27 Jan

    Roof extension including hip to gable, rear dormer window and 4no. rooflights to front roofslope. Changes to rear fenestration

    Awaiting decision Householder Extension Loft or dormer +1 9 docs
    Domestic

  • 129 Russell Lane London N20 0AZ

    25/3745/192 Submitted 11 Sep 2025 54m away

    79% historically approved · decision due ~6 Nov

    Single storey rear extension following the demolition of existing conservatory

    Awaiting decision Lawful development Extension Demolition 4 docs
    Small domestic

  • 80 Russell Lane London N20 0AP

    25/4596/HSE Submitted 18 Nov 2025 68m away

    77% historically approved · decision due ~22 Jan

    Single storey side/rear extension with 1no. roof lantern following the partial demolition of existing garage. Roof extension involving a side dormer window. Erection of rear outbuilding following the demolition of existing (Amended Description)

    Awaiting decision Householder Extension Loft or dormer +2 7 docs
    Small domestic

  • Rear Of 90 Russell Lane London N20 0AR

    25/3884/191 Submitted 22 Sep 2025 70m away

    79% historically approved · decision due ~17 Nov

    Use as a two storey single family dwelling

    Awaiting decision Lawful development 5 docs
    Domestic

In Barnet

  • 26/1907/191 Decided

    8 Golders Manor Drive London NW11 9HT

    Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

    21 May 2026 Lawful development
  • 26/2059/192 Decided

    Low Ridge Rowley Lane Barnet EN5 3HS

    Erection of a rear outbuilding

    3 Jun 2026 Lawful development
  • 26/2066/192 Decided

    355 Hendon Way London NW4 3NB

    Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

    3 Jun 2026 Lawful development
  • 26/1663/192 Decided

    152 Deans Lane Edgware HA8 9NT

    Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)

    5 May 2026 Lawful development
  • 26/2025/192 Decided

    18 Hale Drive London NW7 3DU

    Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

    1 Jun 2026 Lawful development