27 Crosby Row London Southwark SE1 3YD

1. 26 Jan 2026

   Received by Southwark

2. 27 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 11 Feb 2026

   Decision issued: Certificate of Lawfulness Exist- GRANTED

4. 10 Aug 2026

   Added to PlanIndex

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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3477 Submitted 28 Nov 2025 0m away

  Details of condition 4 samples to be prepared on site for review using London stock bricks, lime mortar and recessed pointing as requiredby planning permission 22/AP/1686 dated 30/11/2022 for Alterations to roof including construction of new dormer windows to front and rear, repair and refurbishment of existing fenestration, erection of rear extension at first and second floor levels, refurbishment and alterations including removal of historically unsympathetic fabric to reinstate courtyard at rear. Part of ground floor level in use as office space to continue to be used as office as well as studio workspace with remainder of property being retained as single residential unit.

  Refused Conditions Extension Loft or dormer +1 6 docs

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3479 Submitted 28 Nov 2025 0m away

  Details of condition 6 juliet balcony as required by planning application 22/AP/1686 dated 30/11/2022 for alterations to roof including construction of new dormer windows to front and rear, repair and refurbishment of existing fenestration, erection of rear extension at first and second floor levels, refurbishment and alterations including removal of historically unsympathetic fabric to reinstate courtyard at rear. Part of ground floor level in use as office space to continue to be used as office as well as studio workspace with remainder of property being retained as single residential unit.

  Granted Conditions Extension Loft or dormer +1 10 docs

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3481 Submitted 28 Nov 2025 0m away

  Details of condition 8 replacement window details as required by planning permission 22/AP/1686 dated 30/11/2022 for Alterations to roof including construction of new dormer windows to front and rear, repair and refurbishment of existing fenestration, erection of rear extension at first and second floor levels, refurbishment and alterations including removal of historically unsympathetic fabric to reinstate courtyard at rear. Part of ground floor level in use as office space to continue to be used as office as well as studio workspace with remainder of property being retained as single residential unit.

  Refused Conditions Extension Loft or dormer +1 23 docs

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3476 Submitted 28 Nov 2025 0m away

  Details of condition 3 Courtyard windows and doors as required by planning permission 22/AP/1686 dated 30/11/2022 for Alterations to roof including construction of new dormer windows to front and rear, repair and refurbishment of existing fenestration, erection of rear extension at first and second floor levels, refurbishment and alterations including removal of historically unsympathetic fabric to reinstate courtyard at rear. Part of ground floor level in use as office space to continue to be used as office as well as studio workspace with remainder of property being retained as single residential unit.

  Refused Conditions Extension Loft or dormer +1 33 docs

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3480 Submitted 28 Nov 2025 0m away

  Details of condition 7 for Listed building consent 22/AP/1686 dated 30/11/2022 for "Alterations to roof including construction of new dormer windows to front and rear, repair and refurbishment of existing fenestration, erection of rear extension at first and second floor levels, refurbishment and alterations including removal of historically unsympathetic fabric to reinstate courtyard at rear. Part of ground floor level in use as office space to continue to be used as office as well as studio workspace with remainder of property being retained as single residential unit".

  Granted Conditions Extension Loft or dormer +1 17 docs

• 27 Crosby Row London Southwark SE1 3YD

  25/AP/3482 Submitted 28 Nov 2025 0m away

  Details of condition 10 sample area required by Listed building consent ref no 22/AP/1686

  Refused Conditions 6 docs

• 26/AP/1316 Granted

  Seavington House Champion Hill London Southwark SE5 8DN

  Certificate of lawfulness (proposed) to confirm excavation works carried out on the site in the form of trial pits constitute a material operation under the Town and Country Planning Act 1990 and therefore represent lawful commencement of the approved planning permission 22/AP/0174.

  7 May 2026 Lawful development
• 26/AP/1420 Granted

  40 Strathnairn Street London Southwark SE1 5BL

  Certificate of lawfulness (proposed) for construction of a ground floor rear extension and a rear dormer.

  18 May 2026 Lawful development
• 26/AP/1618 Granted

  252 Barry Road London Southwark SE22 0JS

  Certificate of lawful development (proposed) for the construction of a rear dormer extension.

  5 Jun 2026 Lawful development
• 26/AP/1577 Granted

  Residence Inn By Marriott London Bridge 201-211 Long Lane London SE1 4PN

  Certificate of lawfulness (proposed) for undertaking of facade remedial works to remove combustible cladding materials and replace with a like-for-like non-combustible cladding with no change to the outer aesthetics of the building.

  2 Jun 2026 Lawful development
• 26/AP/1509 Withdrawn

  Railway Arch 101 Rockingham Street London Southwark SE1 6PD

  Certificate of lawfulness (proposed) for confirmation of implementation of planning permission 22/AP/3065: Change of use of the railway arch at 101 Rockingham Street from Use Class B8 (Storage/Distribution) to Use Classes E (Commercial, Business and Service) and F2 (Local Community) and a new glazed facade to the exterior including 2x extractor fans.

  27 May 2026 Lawful development