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Planning application

52 Harcourt Avenue Edgware HA8 8YN

Decided Barnet 25/5148/192 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

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

Proposal

Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. New front porch. Erection of a rear outbuilding following demolition of existing garage. (amended)

As published by the council, reference 25/5148/192

Application record

Reference
25/5148/192
Type
Proposed Lawful Development Certificate
Status
Unlawful
Decision
Unlawful
Received
22 Dec 2025
Validated
9 Jan 2026
Decided
6 Feb 2026
Ward
Edgwarebury
Decision by
Delegated Decision
Postcode
HA8 8YN

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by Barnet

  2. 9 Jan 2026

    Validated

    Checked as complete and ready for consideration.

  3. 6 Feb 2026

    Decision issued: Unlawful

  4. 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

89 applications on PlanIndex · across 14 councils · 61% granted

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Documents

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

4 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

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

  • 52 Harcourt Avenue Edgware HA8 8YN

    25/5147/PNH Submitted 22 Dec 2025 1m away

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.82 metres, following demolition of the existing garage.

    Refused Prior approval Extension Demolition 4 docs
    Small domestic

  • 52 Harcourt Avenue Edgware HA8 8YN

    26/2665/PNH Submitted 16 Jul 2026 91m away

    57% historically approved · decision due ~10 Sep

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.82 metres, following demolition of the existing garage.

    Awaiting decision Prior approval Extension Demolition
    Small domestic

  • 151 Fairmead Crescent Edgware HA8 8YS

    25/4931/192 Submitted 9 Dec 2025 132m away

    Roof extension involving hip to gable, rear dormer, 3no. front facing rooflights and new side gable window. Demolition of chimney stack.

    Decided Lawful development Extension Loft or dormer +2 19 docs

  • 130A Fairmead Crescent Edgware HA8 8YP

    26/3014/FUL Submitted 17 Aug 2026 164m away

    61% historically approved · decision due ~30 Oct

    Reduction in size and retention of existing outbuilding for ancillary use

    Awaiting decision Full applications

  • 6A Maytree Close Edgware HA8 8XX

    25/5016/191 Submitted 15 Dec 2025 245m away

    79% historically approved · decision due ~13 Feb

    Single storey rear extension

    Awaiting decision Lawful development Extension 11 docs
    Small domestic

  • 41 Warwick Avenue Edgware HA8 8UN

    26/3114/HSE Submitted 24 Aug 2026 274m away

    77% historically approved · decision due ~21 Oct

    Part single, part two storey front, side and rear extensions with new raised rear terrace with access steps following demolition of the existing detached side garage and shed. Roof extension involving rear dormer window and 2no. front facing rooflights

    Awaiting decision Householder Extension Loft or dormer +2
    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