Planning application
37 Sunbury Avenue London NW7 3SL
Works: Extension Loft or dormer Windows or glazing 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
Two storey side extension including conversion of the existing garage into habitable room, insertion of window to replace the garage door. Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack
As published by the council, reference 26/2310/HSE
Application record
- Reference
- 26/2310/HSE
- Type
- Householder Application
- Status
- Pending Consideration
- Received
- 18 Jun 2026
- Validated
- 19 Jun 2026
- Ward
- Edgware
- Postcode
- NW7 3SL
Site history
Applications at this address on the Barnet register
This site has had 2 applications since 2026: 1 approved, 0 refused.
-
26/1422/192 Granted
37 Sunbury Avenue London NW7 3SL
Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack [Amended Description]
Timeline
Dates from the published record
-
18 Jun 2026
Received by Barnet
-
19 Jun 2026
Validated
Checked as complete and ready for consideration.
-
25 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 14 August 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 44 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
John Perrin & Sons Ltd Agent, registered in Enfield
Active · incorporated 2013 · Enfield
99 applications on PlanIndex · across 8 councils · 86% 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
11 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
-
37 Sunbury Avenue London NW7 3SL
Roof extension involving hip to gable to rear with rear juliette balcony, and 1no. side dormer window on either side. Removal of the existing chimney stack [Amended Description]
Granted Lawful development Extension Loft or dormer +1 10 docs -
34 Selvage Lane London NW7 3SP
79% historically approved · decision due ~5 Oct
Single storey rear infill extension
Awaiting decision ExtensionSmall domestic -
34 Selvage Lane London NW7 3SP
58% historically approved · decision due ~29 Oct
Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.
Awaiting decision Prior approval Extension DemolitionSmall domestic -
8 Sunbury Avenue London NW7 3SJ
77% historically approved · decision due ~12 Mar
Conversion of the existing garage into habitable room, insertion of window to replace garage door. Increase of pitched roof to rear elevation. Changes to side and rear fenestration
Awaiting decision Householder Windows or glazing 4 docsDomestic -
31 Maxwelton Avenue London NW7 3NB
Part single, part two storey rear extension. Creation of side window openings.
Granted Householder Extension Windows or glazing 10 docsDomestic -
23 Selvage Lane London NW7 3SS
80% historically approved · decision due ~30 Jul
Erection of a rear outbuilding following demolition of the existing
Awaiting decision Lawful development Demolition 6 docs
Other householder applications
In Barnet
-
26/3422/HSE Awaiting decision
Revelstroke 28 Totteridge Village London N20 8JN
Construction of a swimming pool and associated hard and soft landscaping following demolition of the existing shed including new access steps. Alterations to the ground level. Replacement of an existing timber decking terrace with a paved terrace.
-
26/3396/HSE Awaiting decision
43 Dukes Avenue London N3 2DE
Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof
-
26/3410/HSE Awaiting decision
54 Ferney Road Barnet EN4 8LE
Single storey rear extension with alteration to the raised terrace area including new access steps to garden
-
26/3415/HSE Awaiting decision
11 Downage London NW4 1AS
Alterations and extensions to the roof including rear dormer window and the partial removal of the roof of the first floor rear extension, creation of a new crown roof over main roof and rear extension, 1no. front, 1no. side, 1no. rear facing rooflight and 1no. on crown roof
-
26/3382/HSE Awaiting decision
11 Layfield Crescent London NW4 3UJ
Part single, part two storey rear extension with flat roof and 1no. skylight