23 Lyndhurst Grove London Southwark SE15 5AN

1. 30 Jun 2022

   Received by Southwark

2. 1 Jul 2022

   Validated

   Checked as complete and ready for consideration.

3. 3 Aug 2022

   Decision issued: Certificate of Lawfulness Prop- GRANTED

4. 26 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

• 23 Lyndhurst Grove London Southwark SE15 5AN

  22/AP/2327 Submitted 30 Jun 2022 0m away

  Construction of a ground floor side return extension, with alterations to two first floor windows in the side elevation.

  Granted Householder Extension Windows or glazing 23 docs
  Domestic

• 17 Lyndhurst Grove London Southwark SE15 5AN

  25/AP/3390 Submitted 20 Nov 2025 18m away

  Construction of a second-floor side extension on the existing balcony; construction of a small ground floor rear extension; construction of a cycle store at the side of the property; installation of a ground floor side door; installation of a window on the side elevation at second floor; installation of windows on the rear elevation at first and second floor; replacement of windows on the front elevation at ground and first floor with new sash windows; re-glazing of bay windows; replacement of the front door; and new plasterwork to the entrance architrave.

  Granted Householder Extension Windows or glazing 20 docs
  Domestic

• 12 Gairloch Road London Southwark SE5 8NG

  22/AP/2742 Submitted 2 Aug 2022 27m away

  Ground floor side extension to the rear and L-shaped rear dormer roof extension (over main roof and outrigger with 1No. rooflight to main dormer flat roof) and 100mm ridge raise.

  Granted Householder Extension Loft or dormer 26 docs
  Domestic

• 5 Cactus Close London Southwark SE15 5AY

  25/AP/2552 Submitted 5 Sep 2025 42m away

  95% historically approved · decision due ~6 Nov

  Replacement of the existing single-glazed timber windows and doors at the front, rear and side elevations for double-glazed uPVC windows, double glazed uPVC door at the rear and double-glazed timber door at the front.

  Awaiting decision Householder Windows or glazing 10 docs
  Domestic

• 15 Gairloch Road London Southwark SE5 8NG

  22/AP/3267 Submitted 13 Sep 2022 52m away

  Construction of a L-shaped dormer loft conversion with raised ridge of 0.4m, associated with x1 rooflight; construction of a single-storey side infill ground extension with rooflight.

  Granted Householder Extension Loft or dormer 31 docs
  Small domestic

• 1 Ainsworth Close London Southwark SE15 5AX

  25/AP/2551 Submitted 5 Sep 2025 55m away

  95% historically approved · decision due ~6 Nov

  Replacement of the existing single-glazed timber windows and doors at the front and rear for double-glazed uPVC windows, uPVC door at the rear and composite door at the front.

  Awaiting decision Householder Windows or glazing 8 docs
  Domestic

• 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