29 Dundas Road London Southwark SE15 2DR

1. 19 Dec 2025

   Received by Southwark

2. 29 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 23 Feb 2026

   Decision issued: Certificate of Lawfulness Prop- 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

• 29 Dundas Road London Southwark SE15 2DR

  26/AP/0718 Submitted 12 Mar 2026 2m away

  Prior Approval for a single-storey rear extension extending 4.90m beyond the original rear wall of the dwellinghouse, with a maximum height of 3.80m and an eaves height of 2.90m. The proposal follows the demolition of an existing conservatory. External materials, including brickwork, roof tiles, and fenestration profiles, to be of a similar appearance to the dwellinghouse as approved under LDC Ref: 25/AP/3755.

  Granted Full applications Extension Roofing +2 17 docs
  Small domestic

• 29 Dundas Road London Southwark SE15 2DR

  26/AP/1759 Submitted 17 Jun 2026 39m away

  95% historically approved · decision due ~19 Aug

  Certificate of Lawful Development (Proposed) for loft conversion with rear dormer, installation of roof lights to front roof slope, construction of a rear outbuilding and ground floor rear extension, fenestration changes including new and replacement windows and installation of soil vent pipe.

  Awaiting decision Extension Loft or dormer +1

• 99 Hollydale Road London Southwark SE15 2TE

  26/AP/1561 Submitted 1 Jun 2026 86m away

  95% historically approved · decision due ~10 Aug

  Construction of a rear dormer including raising the ridge height 0.3m and two rooflights to the front roofslope

  Decided Loft or dormer Roofing

• 25 Hollydale Road London Southwark SE15 2TE

  26/AP/2159 Submitted 22 Jul 2026 86m away

  95% historically approved · decision due ~1 Oct

  Construction of a single storey side extension at ground floor and the construction of an L-shaped rear dormer extension and a raised roof ridge 0.42m, and the installation of external air conditioning units on the roofs of both the ground floor extension and dormer extension.

  Awaiting decision Extension Loft or dormer
  Small domestic

• 99 Hollydale Road London Southwark SE15 2TE

  26/AP/1745 Submitted 16 Jun 2026 86m away

  95% historically approved · decision due ~12 Aug

  Demolition of the existing wrap-around ground floor extension and the erection of a new wrap-around rear extension incorporating a flat roof at 3.0 m above finished floor level.

  Awaiting decision Extension Demolition

• 9 Ansdell Road London Southwark SE15 2DT

  26/AP/1187 Submitted 24 Apr 2026 95m away

  Wrap around extension at ground floor level, rear extension at first floor level and loft conversion with roof ridge raise of 400mm, L shape dormer extension and two roof light at front elevation.

  Granted Householder Extension Loft or dormer 17 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