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Planning application

11 Thyra Grove London N12 8HB

Awaiting decision Barnet 25/5143/PNH Prior Notification (Householder)

Works: Extension Demolition 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 with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory

As published by the council, reference 25/5143/PNH

Application record

Reference
25/5143/PNH
Type
Prior Notification (Householder)
Status
Pending Consideration
Received
22 Dec 2025
Validated
22 Dec 2025
Ward
West Finchley
Postcode
N12 8HB

Site history

Applications at this address on the Barnet register

This site has had 3 applications since 2025: 1 approved, 0 refused.

  • 26/3576/HSE Awaiting decision

    11 Thyra Grove London N12 8HB

    Single storey rear extension with new patio area. Changes to ground floor side fenestration

    Submitted 2 Oct 2026 Householder
  • 26/2208/PNH Granted

    11 Thyra Grove London N12 8HB

    2No. single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory.

    Decided 28 Jul 2026 Prior approval

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by Barnet

  2. 10 Aug 2026

    Added to PlanIndex

  3. 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.

Documents

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

7 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.

Watch members (£5 a month) open the document list from here.

Open the documents

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 prior approval applications in a median of 36 days. More in our guide to how long planning decisions take.

About prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 11 Thyra Grove London N12 8HB

    26/2208/PNH Submitted 15 Jun 2026 50 yards away

    2No. single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory.

    Granted Prior approval Extension Demolition 9 docs
    Small domestic

  • 11 Thyra Grove London N12 8HB

    26/3576/HSE Submitted 2 Oct 2026 50 yards away

    77% historically approved · decision due ~27 Nov

    Single storey rear extension with new patio area. Changes to ground floor side fenestration

    Awaiting decision Householder Extension Windows or glazing
    Small domestic

  • 8 Thyra Grove London N12 8HB

    26/0926/192 Submitted 11 Mar 2026 50 yards away

    Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights

    Granted Lawful development Extension Loft or dormer +1 5 docs

  • 8 Thyra Grove London N12 8HB

    26/2358/PNH Submitted 22 Jun 2026 50 yards away

    Single storey rear extension with a maximum proposed depth of 4.9m, a maximum height of 3.42m and an eaves height of 2.93m

    Refused Prior approval Extension 10 docs
    Small domestic

  • 8 Thyra Grove London N12 8HB

    26/2357/PNH Submitted 22 Jun 2026 50 yards away

    Single storey rear extension with a maximum proposed depth of 6.0m, a maximum height of 3.42m and an eaves height of 2.93m.

    Refused Prior approval Extension 10 docs
    Small domestic

  • 8 Thyra Grove London N12 8HB

    26/1850/PNH Submitted 18 May 2026 50 yards away

    Single storey rear extension following demolition of existing rear extension at a proposed depth of 6.0m from outrigger and 6.0m from the original rear wall, a maximum height of 3.42m and an eaves height of 2.93m

    Withdrawn Prior approval Extension Demolition 11 docs
    Small domestic

In Barnet

  • 26/3835/PNH Awaiting decision

    3 Devonshire Crescent London NW7 1DN

    Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.48 metres and eaves height of 3.00 metres. Following demolition of existing rear outrigger.

    22 Oct 2026 Prior approval
  • 26/3832/PNH Awaiting decision

    48 Alverstone Avenue Barnet EN4 8EB

    Single storey rear extension with a proposed depth of 4.5 metres, maximum height of 3.15 metres and eaves height of 3 metres following demolition of existing rear extension.

    22 Oct 2026 Prior approval
  • 26/3823/PNH Awaiting decision

    7 Southbourne Crescent London NW4 2LB

    Single storey rear extension added to an existing extension with the total extension measuring 6.00 metres deep, with a maximum height of 3.00 metres and an eaves height of 3.00 metres.

    21 Oct 2026 Prior approval
  • 26/3809/PND Awaiting decision

    10 Clifford Road Barnet EN5 5PG

    Demolition of existing garage

    21 Oct 2026 Prior approval
  • 26/3819/PNH Awaiting decision

    78 Russell Lane London N20 0AP

    2no. Single storey rear extensions with a proposed depth of 7.00 metres, maximum height of 3.60 metres and eaves height of 3.00 metres. Following demolition of the existing side/rear outrigger.

    Received 20 Oct, published by the council 22 Oct 2026 Prior approval