Planning application
Garden Flat 25 Lancaster Grove London NW3 4EX
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of a garden room at rear
As published by the council, reference 2025/5477/P
Application record
- Reference
- 2025/5477/P
- Type
- Full Planning Permission
- Status
- Final Decision
- Decision
- Granted
- Received
- 2 Dec 2025
- Validated
- 4 Dec 2025
- Decided
- 14 May 2026
- Ward
- Belsize
- Decision by
- Delegated
- 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.
-
2026/3432/P Awaiting decision
Garden Flat 25 Lancaster Grove London NW3 4EX
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.
-
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.
Timeline
Dates from the published record
-
2 Dec 2025
Received by Camden
-
4 Dec 2025
Validated
Checked as complete and ready for consideration.
-
14 May 2026
Decision issued: Granted
-
9 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
2 later applications on the register refer to this one:
-
2026/3432/P Awaiting decision
Garden Flat 25 Lancaster Grove London NW3 4EX
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.
-
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.
Documents
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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Camden granted permission on 14 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
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 0.3 miles
-
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 -
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
92% historically approved · decision due ~15 Oct
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.
Awaiting decision Full applications Trees 11 docs -
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
Other full applications
In Camden
-
2026/0990/P Refused
1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ
Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.
-
2026/3044/P Granted
London Irish Centre 50-52 Camden Square London NW1 9XB
Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.
-
2026/4338/P Awaiting decision
32 Willoughby Road London NW3 1RU
Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.
-
2026/4141/P Awaiting decision
24 Endell Street London WC2H 9HQ
Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.
-
2026/3907/P Awaiting decision
Flat 1 16 Lyndhurst Road London NW3 5NL
External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.