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Planning application

19 Hendon Avenue London N3 1UJ

Awaiting decision Barnet 25/3928/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer 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

Single storey side extensions to both sides. Single storey rear extension. Roof extension with rear dormer windows, 14no. front and 2no. side facing rooflights following the demolition of chimneys

As published by the council, reference 25/3928/192

Application record

Reference
25/3928/192
Type
Proposed Lawful Development Certificate
Status
Pending Consideration
Received
25 Sep 2025
Validated
26 Sep 2025
Ward
Finchley Church End
Postcode
N3 1UJ

Timeline

Dates from the published record

  1. 25 Sep 2025

    Received by Barnet

  2. 26 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 21 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 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 London

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

23 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

  • 19 Hendon Avenue London N3 1UJ

    26/0097/192 Submitted 12 Jan 2026 5m away

    Extension of existing swimming pool and new pool house following demolition of existing pool house

    Decided Lawful development Extension Demolition 17 docs

  • 19 Hendon Avenue London N3 1UJ

    TPP/0179/26 Submitted 25 Mar 2026 6m away

    1 X Copper Beech - fell, grind stump to a minimum depth of 300mm below ground level and replace with a copper beech (Fagus sylvatica 'Purpurea') in same location, due to significant structural decay and high risk of failure. Standing in T44 of Order (amended description)

    Granted Trees 9 docs

  • 19 Hendon Avenue London N3 1UJ

    26/1060/192 Submitted 19 Mar 2026 11m away

    79% historically approved · decision due ~19 May

    Extension of existing swimming pool and new pool house following demolition of existing pool house

    Awaiting decision Lawful development Extension Demolition 15 docs

  • 19 St Marys Avenue London N3 1SN

    26/0295/HSE Submitted 27 Jan 2026 88m away

    Single storey rear extension. Rear Patio. Roof extension including hip to gable and rear dormer window. Alterations to front elevation involving changes to fenestration and external material finishes

    Granted Householder Extension Loft or dormer +1 28 docs
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  • 23 St Marys Avenue London N3 1SN

    25/3647/HSE Submitted 4 Sep 2025 105m away

    77% historically approved · decision due ~7 Nov

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    Awaiting decision Householder 5 docs
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  • 3 Grenville Close London N3 1UF

    26/1436/NMA Submitted 17 Apr 2026 109m away

    Non-material amendments to planning permission reference 26/0029/HSE dated 28/03/26 for 'Single Storey rear infill extension, first floor side extension.' Amendments include changes to fenestration to front and rear elevations

    Granted Amendments Extension Windows or glazing 4 docs
    Small domestic

In Barnet

  • 26/2679/192 Decided

    21 Myddelton Park London N20 0JH

    Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

    20 Jul 2026 Lawful development
  • 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