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Planning application

63 Sefton Avenue London NW7 3QE

Refused Barnet 26/0602/PNH Prior Notification (Householder)

Works: Extension 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

Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.50 metres and eaves height of 3.00 metres

As published by the council, reference 26/0602/PNH

Application record

Reference
26/0602/PNH
Type
Prior Notification (Householder)
Status
Prior Approval Required and Refused
Decision
Refused As published: Prior Approval Required and Refused
Received
17 Feb 2026
Validated
18 Feb 2026
Decided
31 Mar 2026
Ward
Edgware
Decision by
Delegated Decision
Postcode
NW7 3QE

Site history

Applications at this address on the Barnet register

This site has had 5 applications since 2026: 1 approved, 3 refused.

  • 26/2326/PNH Awaiting decision

    63 Sefton Avenue London NW7 3QE

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.50 metres.

    Submitted 19 Jun 2026 Prior approval
  • 26/1690/PNH Refused

    63 Sefton Avenue London NW7 3QE

    Single storey rear extension with a proposed maximum depth of 6.00 metres, maximum height of 4.00 metres and an eaves height of 2.40m

    Decided 10 Jun 2026 Prior approval
  • 26/1001/PNH Refused

    63 Sefton Avenue London NW7 3QE

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.70 metres

    Decided 20 Apr 2026 Prior approval
  • 26/0597/192 Granted

    63 Sefton Avenue London NW7 3QE

    Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

    Decided 2 Mar 2026 Lawful development

Timeline

Dates from the published record

  1. 17 Feb 2026

    Received by Barnet

  2. 18 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 31 Mar 2026

    Decision issued: Prior Approval Required and Refused

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

JPB ARCHITECTS Agent, an architecture practice

56 applications on PlanIndex · across 16 councils · 72% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

13 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 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

  • 63 Sefton Avenue London NW7 3QE

    26/1001/PNH Submitted 16 Mar 2026 50 yards away

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.70 metres

    Refused Prior approval Extension 14 docs
    Small domestic

  • 63 Sefton Avenue London NW7 3QE

    26/1690/PNH Submitted 6 May 2026 50 yards away

    Single storey rear extension with a proposed maximum depth of 6.00 metres, maximum height of 4.00 metres and an eaves height of 2.40m

    Refused Prior approval Extension 12 docs
    Small domestic

  • 63 Sefton Avenue London NW7 3QE

    26/0597/192 Submitted 16 Feb 2026 50 yards away

    Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

    Granted Lawful development Extension Loft or dormer +1 11 docs

  • 63 Sefton Avenue London NW7 3QE

    26/2326/PNH Submitted 19 Jun 2026 50 yards away

    56% historically approved · decision due ~14 Aug

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.50 metres.

    Awaiting decision Prior approval Extension 11 docs
    Small domestic

  • 36 Delamere Gardens London NW7 3EB

    25/3683/HSE Submitted 8 Sep 2025 50 yards away

    77% historically approved · decision due ~3 Nov

    Single storey side/rear extension with 2no. rooflights

    Awaiting decision Householder Extension Loft or dormer 14 docs
    Small domestic

  • 3 Delamere Gardens London NW7 3EA

    26/2813/HSE Submitted 30 Jul 2026 100 yards away

    77% historically approved · decision due ~24 Sep

    Single storey front extension incorporating a front porch, raising existing side extension floor level to match main house level, new roof with increased height to the side extension and 2no. rooflights, single storey rear extension with 4no. rooflights with new patio area, access steps to garden and hard and soft landscaping. Changes to fenestration: replacement of existing windows

    Decided Householder Extension Loft or dormer +2
    Small domestic

In Barnet

  • 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 and attached pitched-roof structure

    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
  • 26/3787/PNH Awaiting decision

    8 Wessex Gardens London NW11 9RT

    2no. single-storey rear extensions with a proposed depth of 6.00 metres, a maximum height of 4.00 metres and an eaves height of 3.00 metres, following the demolition of the existing rear bay window.

    19 Oct 2026 Prior approval
  • 26/3696/PNH Awaiting decision

    14 Langford Road Barnet EN4 9DS

    Single storey rear extension with a proposed depth of 5 metres, maximum height of 3.97 metres and eaves height of 2.6 metres

    13 Oct 2026 Prior approval