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Planning application

131 Fitzjohn Avenue Barnet EN5 2HR

Awaiting decision Barnet 25/5111/192 Proposed Lawful Development Certificate

Works: Extension 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

As published by the council, reference 25/5111/192

Application record

Reference
25/5111/192
Type
Proposed Lawful Development Certificate
Status
Pending Consideration
Received
19 Dec 2025
Validated
22 Dec 2025
Ward
Underhill
Postcode
EN5 2HR

Timeline

Dates from the published record

  1. 19 Dec 2025

    Received by Barnet

  2. 22 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 16 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 46 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Brian O'Reilly Architects Agent, an architecture practice registered in London

Active · incorporated 2008 · London

4 applications on PlanIndex · across 3 councils

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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 happens while it is decided

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided lawful development applications in a median of 28 days. More in our guide to how long planning decisions take.

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

  • 146 Fitzjohn Avenue Barnet EN5 2HP

    26/1607/192 Submitted 29 Apr 2026 50 yards away

    New front porch. Changes to ground floor fenestration

    Granted Lawful development Extension Windows or glazing 3 docs
    Small domestic

  • 146 Fitzjohn Avenue Barnet EN5 2HP

    26/1599/192 Submitted 28 Apr 2026 50 yards away

    Roof extension involving hip to gable, rear dormer window, front and side facing rooflights and new side gable window

    Granted Lawful development Extension Loft or dormer +1 4 docs

  • 107 Fitzjohn Avenue Barnet EN5 2HR

    26/3017/HSE Submitted 17 Aug 2026 100 yards away

    77% historically approved · decision due ~22 Oct

    Single storey side/rear wrap-around extension including alterations to the patio area and 1no. rooflight. Roof extension involving hip to gable, rear dormer window and 2no. front facing rooflights

    Decided Householder Extension Loft or dormer +1
    Small domestic

  • 103 Fitzjohn Avenue Barnet EN5 2HR

    26/2946/HSE Submitted 10 Aug 2026 100 yards away

    77% historically approved · decision due ~5 Oct

    Roof extension including hip to gable, rear dormer window, 2no. rear and 3no. front facing rooflights and raising the ridge height

    Decided Householder Extension Loft or dormer +2 7 docs
    Domestic

  • 89 Normandy Avenue Barnet EN5 2HT

    26/2622/HSE Submitted 14 Jul 2026 100 yards away

    77% historically approved · decision due ~11 Sep

    Part single, part two storey side/rear extension with 3no. rooflights, raised decking area with glass balustrade following demolition of the existing conservatory and garage. Removal of chimney. Changes to fenestration including new front window opening

    Decided Householder Extension Loft or dormer +2
    Small domestic

  • 8 Lawnswood Manor Road Barnet EN5 2LJ

    26/2947/FUL Submitted 10 Aug 2026 150 yards away

    63% historically approved · decision due ~5 Oct

    Erection of a rear garden room

    Decided Full applications

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