340 Grays Inn Road London WC1X 8BG

This site has had 6 applications since 2025: 5 approved, 0 refused.

• 2026/2399/P Awaiting decision

  340 Grays Inn Road London WC1X 8BG

  Variation of conditions to planning permission ref. 2022/4469/P (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 on 05/12/2024) to amend the configuration of the ground floor including the location of the cycle storage from inside to outside the building, residential staircase doors and entrance lobby, creation of a single commercial unit at ground floor level, increasing the amount of commercial floorspace, removing the level change at the entrance, introducing entrances from Britannia Street into the commercial unit, reconfiguration of the basement to create separate commercial spaces without the level changes, internal alterations to flats 1, 2, 4 and 5 at first floor level, relocation of the first floor riser, movement of a stairwell door to minimise levels differences, the introduction of an AOV to address fire requirements, the introduction of a first floor lift door and external changes to switch balcony sliding doors for swing doors.

  Submitted 9 Sep 2026 Amendments
• 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'

  Decided 16 Feb 2026 Full applications
• 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'

  Decided 17 Nov 2025 Full applications
• 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'

  Decided 28 Apr 2026 Full applications
• 2025/4671/P Granted

  340 Grays Inn Road London WC1X 8BG

  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

  Decided 3 Nov 2025 Amendments

1. 10 Nov 2025

   Received by Camden

2. 14 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 17 Nov 2025

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

• 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

  Decided 5 Dec 2024 Full applications

Camden granted permission on 17 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.

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.

• 340 Grays Inn Road London WC1X 8BG

  2025/4762/P Submitted 30 Oct 2025 50 yards away

  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

  2025/4671/P Submitted 17 Oct 2025 50 yards away

  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

  Granted Amendments Extension 3 docs

• 340 Grays Inn Road London WC1X 8BG

  2025/4764/P Submitted 6 Nov 2025 50 yards away

  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

  2026/2399/P Submitted 9 Sep 2026 50 yards away

  99% historically approved · decision due ~17 Nov

  Variation of conditions to planning permission ref. 2022/4469/P (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 on 05/12/2024) to amend the configuration of the ground floor including the location of the cycle storage from inside to outside the building, residential staircase doors and entrance lobby, creation of a single commercial unit at ground floor level, increasing the amount of commercial floorspace, removing the level change at the entrance, introducing entrances from Britannia Street into the commercial unit, reconfiguration of the basement to create separate commercial spaces without the level changes, internal alterations to flats 1, 2, 4 and 5 at first floor level, relocation of the first floor riser, movement of a stairwell door to minimise levels differences, the introduction of an AOV to address fire requirements, the introduction of a first floor lift door and external changes to switch balcony sliding doors for swing doors.

  Awaiting decision Amendments New dwelling Extension 6 docs

• 340 Grays Inn Road London WC1X 8BG

  2025/4763/P Submitted 23 Oct 2025 50 yards away

  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

  2015/5871/P 50 yards away

  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

• 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.

  Received 26 Mar, published by the council 24 Jul 2026 Full applications
• 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'.

  Received 20 Jul, published by the council 2 Aug 2026 Full applications
• 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'.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 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.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 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.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications