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Planning application

23 Sanderstead Avenue London NW2 1SE

Awaiting decision Barnet 25/4880/HSE Householder Application

Works: Extension Loft or dormer Demolition Windows or glazing 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 side and rear extensions following demolition of the existing garage. Roof extension involving enlargement of the rear dormer window and 2no. front dormer windows

As published by the council, reference 25/4880/HSE

Application record

Reference
25/4880/HSE
Type
Householder Application
Status
Pending Consideration
Received
4 Dec 2025
Validated
17 Dec 2025
Ward
Childs Hill
Postcode
NW2 1SE

Site history

Applications at this address on the Barnet register

This site has had 4 applications since 2025: 1 approved, 0 refused.

  • 26/1701/HSE Granted

    23 Sanderstead Avenue London NW2 1SE

    Single storey side and rear extensions. Roof extension involving 2no. front dormer windows. Front Porch Extension (AMENDED DESCRIPTION)

    Decided 3 Sep 2026 Householder
  • 25/4525/PNH Awaiting decision

    23 Sanderstead Avenue London NW2 1SE

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres. (AMENDED PLANS)

    Submitted 13 Nov 2025 Prior approval
  • 25/3987/PNH Awaiting decision

    23 Sanderstead Avenue London NW2 1SE

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

    Submitted 1 Oct 2025 Prior approval

Timeline

Dates from the published record

  1. 4 Dec 2025

    Received by Barnet

  2. 17 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 11 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 45 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Excel Planning Agent, a planning consultancy registered in London

Active · incorporated 2022 · London

193 applications on PlanIndex · across 16 councils · 82% 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

5 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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 23 Sanderstead Avenue London NW2 1SE

    25/3987/PNH Submitted 1 Oct 2025 50 yards away

    56% historically approved · decision due ~27 Nov

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

    Awaiting decision Prior approval Extension 6 docs
    Small domestic

  • 23 Sanderstead Avenue London NW2 1SE

    25/4525/PNH Submitted 13 Nov 2025 50 yards away

    56% historically approved · decision due ~8 Jan

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres. (AMENDED PLANS)

    Awaiting decision Prior approval Extension 7 docs
    Small domestic

  • 23 Sanderstead Avenue London NW2 1SE

    26/1701/HSE Submitted 6 May 2026 50 yards away

    Single storey side and rear extensions. Roof extension involving 2no. front dormer windows. Front Porch Extension (AMENDED DESCRIPTION)

    Granted Householder Extension Loft or dormer +1 6 docs
    Small domestic

  • 20 Sanderstead Avenue London NW2 1SG

    26/1621/HSE Submitted 30 Apr 2026 50 yards away

    Single storey side and rear extension with 2no. rooflights and new patio area. Roof extension involving side and rear dormer window

    Granted Householder Extension Loft or dormer +1 10 docs
    Small domestic

  • 60A Purley Avenue London NW2 1SB

    25/4124/CON Submitted 14 Oct 2025 50 yards away

    93% historically approved · decision due ~9 Dec

    Submission of details of condition 12 (Pre-completion Sound Insulation Test Certificates) pursuant to planning permission 22/3145/PNZ dated 19/08/22

    Awaiting decision Conditions 2 docs

  • 60A Purley Avenue London NW2 1SB

    25/3445/CON Submitted 18 Aug 2025 100 yards away

    93% historically approved · decision due ~13 Oct

    Submission of details of condition 8 (Section 278 Highways Agreement) pursuant to planning permission 22/3145/PNZ dated 19/08/2022

    Awaiting decision Conditions 13 docs

In Barnet

  • 26/3881/HSE Awaiting decision

    9 Walfield Avenue London N20 9PS

    Single storey rear extension. Replacement front porch

    26 Oct 2026 Householder
  • 26/3028/HSE Refused

    50 Riverdene Edgware HA8 9TD

    First floor front extension. Proposed roof extension involving hip to gable with rear dormer window and 3no. front facing rooflights

    Received 18 Aug, published by the council 22 Aug 2026 Householder
  • 26/3861/HSE Awaiting decision

    9 St Marys Road London NW11 9UE

    Rear raised platform with associated access steps, guard rails and privacy screen

    Received 23 Oct, published by the council 26 Oct 2026 Householder
  • 26/3853/HSE Awaiting decision

    30 Goldsmith Avenue London NW9 7HB

    Single storey rear extension following demolition of the existing extension

    23 Oct 2026 Householder
  • 26/3866/HSE Awaiting decision

    50 Brookside Road London NW11 9NE

    Part single, part two storey side and rear with alterations to the exising patio area

    Received 23 Oct, published by the council 26 Oct 2026 Householder