Planning application
30 Derwent Avenue London NW7 3DZ
Works: Extension Loft or dormer 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 rear extension with 2no. rooflights. Conversion and extension of the existing integral store into habitable space, replacement of garage door with window
As published by the council, reference 26/0342/HSE
Application record
- Reference
- 26/0342/HSE
- Type
- Householder Application
- Status
- Pending Consideration
- Received
- 29 Jan 2026
- Validated
- 29 Jan 2026
- Ward
- Edgware
- Postcode
- NW7 3DZ
Timeline
Dates from the published record
-
29 Jan 2026
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 26 March 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 42 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, an architecture practice
14 applications on PlanIndex · across 5 councils
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
12 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
The process from here
This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
3 Delamere Gardens London NW7 3EA
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
Awaiting decision Householder Extension Loft or dormer +2Small domestic -
36 Delamere Gardens London NW7 3EB
77% historically approved · decision due ~3 Nov
Single storey side/rear extension with 2no. rooflights
Awaiting decision Householder Extension Loft or dormer 14 docsSmall domestic -
18 Hale Drive London NW7 3DU
Single storey rear infill extension
Granted Householder Extension 12 docsSmall domestic -
18 Hale Drive London NW7 3DU
Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window
Decided Lawful development Extension Loft or dormer +1 9 docs -
2 Derwent Avenue London NW7 3DZ
79% historically approved · decision due ~1 Apr
Roof extension involving rear dormer windows and 2no. front facing rooflights
Awaiting decision Lawful development Extension Loft or dormer +1 5 docs -
37 Hale Drive London NW7 3EL
77% historically approved · decision due ~18 Nov
Roof extension involving hip to gable, juliette balcony with rear dormer window and 1no. side gable window following the demolition of existing side and rear dormer windows. Conversion of garage into habitable room, insertion of window to replace garage door and replacement of front door. Changes to rear fenestration
Awaiting decision Householder Extension Loft or dormer +2 13 docsDomestic
Other householder applications
In Barnet
-
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.
-
26/3211/HSE Awaiting decision
25 The Ridgeway London N11 3LG
Single storey rear extension with 3no. rooflights following the demolition of existing conservatory