Planning application
23 Sanderstead Avenue London NW2 1SE
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 with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.
As published by the council, reference 25/3987/PNH
Application record
- Reference
- 25/3987/PNH
- Type
- Prior Notification (Householder)
- Status
- Pending Consideration
- Received
- 1 Oct 2025
- Validated
- 2 Oct 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)
-
25/4880/HSE Awaiting decision
23 Sanderstead Avenue London NW2 1SE
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
-
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)
Timeline
Dates from the published record
-
1 Oct 2025
Received by Barnet
-
2 Oct 2025
Validated
Checked as complete and ready for consideration.
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 27 November 2025, 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 recordDocuments
Plans, drawings, consultee responses and the officer's report
6 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 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 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
-
23 Sanderstead Avenue London NW2 1SE
77% historically approved · decision due ~11 Feb
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
Awaiting decision Householder Extension Loft or dormer +2 5 docsSmall domestic -
23 Sanderstead Avenue London NW2 1SE
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 docsSmall domestic -
23 Sanderstead Avenue London NW2 1SE
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 docsSmall domestic -
20 Sanderstead Avenue London NW2 1SG
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 docsSmall domestic -
60A Purley Avenue London NW2 1SB
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
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
Other prior approval applications
In Barnet
-
26/3877/PNH Awaiting decision
90 Cumbrian Gardens London NW2 1EL
Single storey rear extension with a proposed depth of 6.00 metres, a maximum height of 3.00 metres and an eaves height of 3.00 metres, following demolition of the existing conservatory
-
26/3874/PNH Awaiting decision
9 Devonshire Road London NW7 1NE
Single storey rear extension with a proposed depth of 6 metres, maximum height of 3.4 metres and eaves height of 3 metres
-
26/3886/PNH Awaiting decision
31 Bethune Avenue London N11 3LD
Single Storey Rear Extension with a depth of 4.00 metres, a maximum height of 3.10 metres and an eaves height of 2.68 metres
-
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.
-
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.