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Planning application

52 Harcourt Avenue Edgware HA8 8YN

Refused 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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

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
Refused As published: Unlawful
Received
22 Dec 2025
Validated
9 Jan 2026
Decided
6 Feb 2026
Ward
Edgwarebury
Decision by
Delegated Decision
Postcode
HA8 8YN

Site history

Applications at this address on the Barnet register

This site has had 3 applications since 2025: 0 approved, 2 refused.

  • 26/2665/PNH Decided

    52 Harcourt Avenue Edgware HA8 8YN

    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.

    Submitted 16 Jul 2026 Prior approval
  • 25/5147/PNH Refused

    52 Harcourt Avenue Edgware HA8 8YN

    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.

    Decided 13 Feb 2026 Prior approval

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

AH ARCHITECTURE Agent, an architecture practice

106 applications on PlanIndex · across 16 councils · 60% 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.

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What this refusal means

Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 52 Harcourt Avenue Edgware HA8 8YN

    25/5147/PNH Submitted 22 Dec 2025 50 yards 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 100 yards away

    56% 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.

    Decided Prior approval Extension Demolition
    Small domestic
  • 2 Fairmead Crescent Edgware HA8 8YQ

    21/4908/FUL Submitted 10 Sep 2021 100 yards away

    Conversion of property into 2no. dwellinghouses including: Single storey front, side and rear extensions: Associated alterations and extension to roof extension including insertion of roof lights on the front, and side elevations and two rear dormers: Provision of amenity space, off-street parking, cycle storage and refuse/recycling store following demolition of existing garage

    Refused Full applications Extension Loft or dormer +1 9 docs
    Several homes
  • 151 Fairmead Crescent Edgware HA8 8YS

    25/4931/192 Submitted 9 Dec 2025 150 yards away

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

    Granted Lawful development Extension Loft or dormer +2 19 docs
  • 130A Fairmead Crescent Edgware HA8 8YP

    26/3014/FUL Submitted 17 Aug 2026 200 yards away

    63% 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 250 yards away

    80% historically approved · decision due ~13 Feb

    Single storey rear extension

    Awaiting decision Lawful development Extension 11 docs
    Small domestic

In Barnet

  • 26/2679/192 Granted

    21 Myddelton Park London N20 0JH

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

    Received 20 Jul, published by the council 7 Aug 2026 Lawful development
  • 26/1362/191 Refused

    145 Cotswold Gardens London NW2 1PL

    Use as a House in Multiple Occupation (HMO) for 6 people

    Received 14 Apr, published by the council 25 Jul 2026 Lawful development
  • 26/1907/191 Granted

    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)

    Received 21 May, published by the council 16 Aug 2026 Lawful development
  • 26/2392/192 Refused

    6 Mostyn Road Edgware HA8 0JD

    New front hardstanding and vehicular access to provide off-street parking

    Received 23 Jun, published by the council 9 Aug 2026 Lawful development
  • 26/2059/192 Refused

    Low Ridge Rowley Lane Barnet EN5 3HS

    Erection of a rear outbuilding

    Received 3 Jun, published by the council 16 Aug 2026 Lawful development