Planning application
24 Tretawn Gardens London NW7 4NR
Works: Extension Loft or dormer Roofing Windows or glazing Domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Roof extension involving extended crown roof, raising of the ridge height, side and rear dormer windows and 2no. front facing rooflights
As published by the council, reference 26/0266/HSE
Application record
- Reference
- 26/0266/HSE
- Type
- Householder Application
- Status
- Approved subject to conditions
- Decision
- Approve subject to conditions
- Received
- 23 Jan 2026
- Validated
- 23 Jan 2026
- Decided
- 24 Feb 2026
- Ward
- Mill Hill
- Decision by
- Delegated Decision
- Postcode
- NW7 4NR
Timeline
Dates from the published record
-
23 Jan 2026
Received by Barnet
-
24 Feb 2026
Decision issued: Approve subject to conditions
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Bedford
9 applications on PlanIndex · across 4 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
16 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 a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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
-
38 Tretawn Gardens London NW7 4NR
77% historically approved · decision due ~2 Sep
Roof extension involving triple rear dormer window, 2no. front facing rooflights and new side gable windows
Awaiting decision Householder Extension Loft or dormer +1Domestic -
43 Sunnyfield London NW7 4RD
Roof extension involving wraparound side and rear dormer window with 1no. front facing and 1no. side facing rooflight sited on existing roof slopes (amended description)
Decided Lawful development Extension Loft or dormer +1 6 docs -
Trees Austell Gardens London NW7 4NS
77% historically approved · decision due ~30 Apr
Erection of a rear outbuilding
Awaiting decision Householder 8 docsSmall domestic -
Trees Austell Gardens London NW7 4NS
Variation of Condition 1 (Approved Plans) of planning permission reference 20/4044/FUL dated 03/06/21 for 'Erection of new dwelling on side of house. Associated refuse/recycling area, cycle store and amenity space, provision off street parking.' Variation to include alterations to hard and soft landscaping and vehicle access
Granted Conditions New dwelling 10 docsDomestic -
Trees Austell Gardens London NW7 4NS
95% historically approved · decision due ~18 Nov
Variation of condition 1 (Approved Plans) of planning permission reference 20/4044/FUL dated 03/06/21 for 'Erection of new dwelling on side of house. Associated refuse/recycling area, cycle store and amenity space, provision off street parking.' Variation to include: Addition of 1no. north-facing side dormer window; Installation of 1no. additional rooflight to south facing roofslope; Installation of 1no. rooflight to ground floor flat roof; Alterations to north and south fenestration; Internal alterations; Amendments to landscaping proposals
Awaiting decision Conditions New dwelling Loft or dormer +2 10 docsDomestic -
Small domestic
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