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Planning application

1515 High Road London N20 9PJ

Awaiting decision Barnet 25/4919/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer Demolition 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 rear extension with 1no. rooflight and new patio area following demolition of existing conservatory and garage

As published by the council, reference 25/4919/192

Application record

Reference
25/4919/192
Type
Proposed Lawful Development Certificate
Status
Pending Consideration
Received
8 Dec 2025
Validated
10 Dec 2025
Ward
Barnet Vale
Postcode
N20 9PJ

Timeline

Dates from the published record

  1. 8 Dec 2025

    Received by Barnet

  2. 10 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 4 February 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 42 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 London

12 applications on PlanIndex · across 4 councils · 70% 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

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 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

  • 1515 High Road London N20 9PJ

    25/4321/PNH Submitted 29 Oct 2025 2m away

    Single storey L-shaped rear extension with proposed depths of 3.0 metres and 4.85 metres, maximum height of 3.0 metres and eaves height of 2.90 metres, following demolition of existing conservatory and garage.

    Granted Prior approval Extension Demolition 16 docs
    Small domestic

  • 1522 High Road London N20 9PT

    25/4157/CON Submitted 16 Oct 2025 84m away

    Submission of details of condition 18 (Excavations for Services - tree protect) 19 (Levels) pursuant to planning permission 23/5309/FUL dated 12/02/2024

    Granted Conditions Trees 6 docs

  • 1522 High Road London N20 9PT

    25/4144/CON Submitted 15 Oct 2025 86m away

    95% historically approved · decision due ~11 Dec

    Submission of details of condition 7 (Cycle parking/storage) 20 (Refuse/recycling storage) pursuant to planning permission 23/5309/FUL dated 12/02/2024

    Awaiting decision Conditions 2 docs

  • 21 Walfield Avenue London N20 9PS

    25/3858/PNH Submitted 18 Sep 2025 100m away

    57% historically approved · decision due ~14 Nov

    Single storey rear extension with a proposed depth of 5.00m, maximum height of 3.70m and eaves height of 3.00m.

    Awaiting decision Prior approval Extension 3 docs
    Small domestic

  • 14 Walfield Avenue London N20 9PR

    25/4817/PNH Submitted 27 Nov 2025 111m away

    Ground floor single storey rear extension projecting 4m from existing rear wall and 3m in height. Demolition of existing garage.

    Granted Prior approval Extension Demolition 6 docs
    Small domestic

  • 14 Walfield Avenue London N20 9PR

    25/4815/192 Submitted 27 Nov 2025 111m away

    Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights. New front porch. Erection of a rear outbuilding.

    Decided Lawful development Extension Loft or dormer +1 5 docs
    Small 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