Planning application
23 Sanderstead Avenue London NW2 1SE
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.
-
26/1701/HSE Awaiting decision
23 Sanderstead Avenue London NW2 1SE
Single storey side and rear extensions. Roof extension involving 2no. front dormer windows
-
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)
-
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.
Timeline
Dates from the published record
-
4 Dec 2025
Received by Barnet
-
17 Dec 2025
Validated
Checked as complete and ready for consideration.
-
10 Aug 2026
Added to PlanIndex
-
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 43 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file, a planning consultancy registered in London
151 applications on PlanIndex · across 13 councils · 84% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
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.
Trade members open them from here.
Open the documentsWhat 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 500 metres
-
23 Sanderstead Avenue London NW2 1SE
77% historically approved · decision due ~1 Jul
Single storey side and rear extensions. Roof extension involving 2no. front dormer windows
Awaiting decision Householder Extension Loft or dormer +1 6 docsSmall domestic -
23 Sanderstead Avenue London NW2 1SE
58% 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 docsSmall domestic -
23 Sanderstead Avenue London NW2 1SE
58% 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 docsSmall domestic -
20 Sanderstead Avenue London NW2 1SG
77% historically approved · decision due ~30 Jun
Single storey side and rear extension with 2no. rooflights and new patio area. Roof extension involving side and rear dormer window
Awaiting decision Householder Extension Loft or dormer +1 9 docsSmall domestic -
60A Purley Avenue London NW2 1SB
95% 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
95% 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
Other householder applications
In Barnet
-
26/3249/HSE Awaiting decision
19 Rushdene Avenue Barnet EN4 8EN
New front vehicular access and hardstanding to provide off-street parking space. New retaining wall following demolition of the existing wall and raised planted beds
-
26/3235/HSE Awaiting decision
26 Mount Pleasant Barnet EN4 9HH
Replace existing flat roof at ground floor rear elevation with pitched roof and 2no. rooflights
-
26/3222/HSE Awaiting decision
46 Michleham Down London N12 7JN
Single storey side/rear extension with 3no. rooflights following demolition of the existing storage/utility structure. Changes to fenestration
-
26/3219/HSE Awaiting decision
53 Tudor Road Barnet EN5 5NW
First floor rear extension with front and rear rooflights. Roof extension over existing garage
-
26/3210/HSE Awaiting decision
47 Pattison Road London NW2 2HL
New front vehicular access to provide off-street parking. Removal of existing gate and shed, alterations to the existing front boundary wall and installation of close board fencing panels.