Planning application
Garden Flat 25 Lancaster Grove London NW3 4EX
Works: Trees
Relates to 2025/5477/P
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Green roof details and tree protection details required by conditions 3 and 4 of planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.
As published by the council, reference 2026/3432/P
Application record
- Reference
- 2026/3432/P
- Type
- Approval of Details
- Status
- Registered
- Received
- 11 Aug 2026
- Validated
- 20 Aug 2026
- Ward
- Belsize
- Postcode
- NW3 4EX
Site history
Applications at this address on the Camden register
This site has had 3 applications since 2025: 1 approved, 0 refused.
-
2026/3587/06BGP Awaiting decision
Garden Flat 25 Lancaster Grove London NW3 4EX
Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.
-
2025/5477/P Granted
Garden Flat 25 Lancaster Grove London NW3 4EX
Erection of a garden room at rear
Timeline
Dates from the published record
-
11 Aug 2026
Received by Camden
-
20 Aug 2026
Validated
Checked as complete and ready for consideration.
-
22 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 15 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Camden took a median of 42 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
-
2025/5477/P Granted
Garden Flat 25 Lancaster Grove London NW3 4EX
Erection of a garden room at rear
Documents
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 Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided full applications in a median of 56 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
25 Lancaster Grove London NW3 4EX
Change of use from six self-contained flats to a single-family dwellinghouse (Class C3).
Refused Full applications New dwellingDomestic -
Garden Flat 25 Lancaster Grove London NW3 4EX
Erection of a garden room at rear
Granted Full applications 16 docs -
25 Lancaster Grove London NW3 4EX
Single storey rear extension to lower ground floor; creation of a rear roof terrace to ground floor flat; enlargement of lower ground floor unit to a 3 bed flat and ground floor unit to a 2 bed flat; additional side windows at lower ground floor level and associated works.
Granted Full applications Extension Windows or glazingSmall domestic -
Garden Flat 25 Lancaster Grove London NW3 4EX
94% historically approved · decision due ~15 Oct
Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.
Awaiting decision 5 docs -
25 Lancaster Grove London NW3 4EX
Proposed conversion of 1no. one-bedroom flat and 1no. studio flat into 1no. two-bedroom flat at first floor level.
Granted Full applications -
25 Lancaster Grove London NW3 4EX
Conversion of lower ground floor and ground floor flats (1 x 1 bed and 1 x 2 bed) to a 4 bed maisonette and erection of single storey lower ground floor rear extension.
Granted Full applications New dwelling ExtensionSmall domestic
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2026/2697/P Awaiting decision
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