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Planning application

25 Redbourne Avenue London N3 2BP

Decided Barnet 25/4570/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer Demolition Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Extension of the existing roof ridge to form rear gable window with new and replacement side facing rooflights. Changes to fenestration to side and rear elevation. Demolition of existing conservatory.

As published by the council, reference 25/4570/192

Application record

Reference
25/4570/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Lawful
Received
17 Nov 2025
Validated
17 Nov 2025
Decided
12 Jan 2026
Ward
West Finchley
Decision by
Delegated Decision
Postcode
N3 2BP

Timeline

Dates from the published record

  1. 17 Nov 2025

    Received by Barnet

  2. 12 Jan 2026

    Decision issued: Lawful

  3. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice

7 applications on PlanIndex · across 3 councils

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

9 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.

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After the decision

The process from here

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

  • 34 Hervey Close London N3 2HD

    25/3402/HSE Submitted 14 Aug 2025 50m away

    Part single, part two storey rear extension. Roof extension including hip to gable, rear dormer window and 3no. front facing rooflights

    Granted Householder Extension Loft or dormer +1 7 docs
    Domestic

  • 18 Redbourne Avenue London N3 2BS

    26/2542/192 Submitted 6 Jul 2026 52m away

    79% historically approved · decision due ~1 Sep

    Erection of rear outbuilding

    Awaiting decision

  • 18 Redbourne Avenue London N3 2BS

    26/0832/192 Submitted 5 Mar 2026 76m away

    Erection of a rear outbuilding

    Decided Lawful development 13 docs

  • 18 Redbourne Avenue London N3 2BS

    26/2082/192 Submitted 4 Jun 2026 80m away

    Erection of rear garden outbuilding

    Decided Lawful development 12 docs

  • 3 Redbourne Avenue London N3 2BP

    26/0639/192 Submitted 18 Feb 2026 105m away

    79% historically approved · decision due ~16 Apr

    Roof extension involving rear dormer window, 3no. front facing rooflights and new side gable windows. Erection of a rear outbuilding following demolition of the existing sheds

    Awaiting decision Lawful development Extension Loft or dormer +2 5 docs

  • 8 Hervey Close London N3 2HD

    26/1269/HSE Submitted 2 Apr 2026 116m away

    Single storey rear extension with associated patio and access steps (amended)

    Granted Householder Extension 6 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