Planning application
340 Grays Inn Road London WC1X 8BG
Works: Extension
Relates to 2022/4469/P
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Amendment to trigger points of conditions 9 (cycle parking) and 10 (waste storage) of planning permission ref. 2022/4469/P (dated 05/12/24) for Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works
As published by the council, reference 2025/4671/P
Application record
- Reference
- 2025/4671/P
- Type
- Non Material Amendments
- Status
- Final Decision
- Decision
- Granted
- Received
- 17 Oct 2025
- Validated
- 23 Oct 2025
- Decided
- 3 Nov 2025
- Decision by
- Delegated
- Postcode
- WC1X 8BG
Site history
Applications at this address on the Camden register
This site has had 5 applications since 2025: 5 approved, 0 refused.
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2025/5074/P Granted
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 18 (basement engineer) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
-
2025/4764/P Granted
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 16 (green roof) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
-
2025/4762/P Granted
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 14 (enhanced sound insulation) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
-
2025/4763/P Granted
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 13 (internal noise levels habitable rooms) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
Timeline
Dates from the published record
-
17 Oct 2025
Received by Camden
-
23 Oct 2025
Validated
Checked as complete and ready for consideration.
-
3 Nov 2025
Decision issued: Granted
-
9 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
2022/4469/P Granted
340 Gray's Inn Road London Camden WC1X 8BG
Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works
Documents
Plans, drawings, consultee responses and the officer's report
3 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 this grant of permission means
Camden granted permission on 3 November 2025, 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 amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 14 (enhanced sound insulation) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
Granted Full applications Extension 5 docs -
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 18 (basement engineer) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
Granted Full applications Extension 6 docs -
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 16 (green roof) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
Granted Full applications Extension 7 docs -
340 Grays Inn Road London WC1X 8BG
Details pursuant to condition 13 (internal noise levels habitable rooms) of planning permission ref. 2022/4469/P (dated 05/12/2024) for 'Change of use of first floor commercial floorspace to residential use and erection of a two storey (plus basement) extension fronting Britannia Street comprising commercial floorspace at basement and ground floors and 5 residential units at first floor; public realm works'
Granted Full applications Extension 7 docs -
Business Centre 344 Gray's Inn Road London WC1X 8BP
Proposed external alterations to front and rear facade including the installation of replacement mansard windows and proposed extension of rendered brickwork to arched window surround on front elevation
Granted Full applications Extension Loft or dormer +1 -
344 Gray's Inn Road London WC1X 8BX
Display of 1 x internally illuminated fascia sign with illuminated lettering only.
Granted Advertising 4 docs
Other amendment applications
In Camden
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2026/3509/P Awaiting decision
Flat A 55 Leverton Street London NW5 2NX
Non-material amendment to planning permission 2026/0413/P dated 12/05/2026 (Erection of a single storey side and rear extension, re-construction of rear garden boundary wall, replacement of a ground floor rear window with an access door, replacement of a side door with a window, insertion of two rooflights and reinstatement of front sash windows), namely to reduce the depth of the side element of the approved extension.
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2026/2540/P Granted
50-51 Russell Square London WC1B 4JP
Non-material amendment to planning permission ref. 2023/5470/P (dated 13/03/2025) for: Deep refurbishment of existing building including new facades; erection of replacement roof extension with terrace to rear; reopening of lightwell to front and reconfiguration of entrance area; demolition of two storey outrigger and replacement with three storeys plus plant enclosure; single storey rear infill extension to existing car park with terrace above; erection of full height stair rear core extension. NAMELY for alterations to the front lightwell, ground floor entrances, fifth floor fenestration, plant enclosure, and rear terrace.
-
2026/3341/P Granted
Flat A 71 Fitzjohn's Avenue London NW3 6PD
Non-material amendment to planning permission 2025/2351/P dated 30/07/2025 (Various external works including refurbishment and alterations to rear elevation fenestration and entrance door, replacement of existing single glazed windows with double glazed windows and alterations to side elevation fenestration, and re-landscaping works to rear garden), namely to alter the design of the rear doors and replace an existing timber louvre with brickwork to side elevation.
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2026/3097/P Awaiting decision
7 Belsize Park Gardens London NW3 4LB
Non-material amendment to planning permission ref. 2025/5424/P dated 06/05/2026 for 'front alterations including reduction of length of metal railings and widening of opening for access to bins, installation of tiling to new entrance steps, installation of door to storage area & handrail to Flat A, and alterations to side boundary doorway', namely, to change the material for the new entrance steps and front paving.
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2026/2606/P Granted
Chester Road Hostel 2 Chester Road London N19 5BP
Non-material amendments to planning permission 2020/3461/P dated 11/05/2021 (for: Redevelopment of the site to include demolition of existing hostel building and the erection of a new hostel building (sui generis) formed of 3 x part 3, part 4 storey blocks with 2 x external stairwells arranged around a central courtyard. Associated works include installation of plant equipment, access arrangements and tree and landscaping works) NAMELY re-design and re-positioning of the boundary treatment near the site entrance and erection of retaining wall and balustrade in connection with revisions to ramp access to bin store