23 Abercorn Way London Southwark SE1 5HL

1. 14 May 2026

   Received by Southwark

2. 15 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 9 Jul 2026

   Decision issued: Certificate of Lawfulness Prop- GRANTED

4. 25 Jul 2026

   Added to PlanIndex

Southwark granted permission on 9 July 2026, 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 lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 25 Abercorn Way London Southwark SE1 5HL

  26/AP/1393 Submitted 14 May 2026 50 yards away

  Certificate of Lawfulness (proposed) for the proposed development of a garage conversion to replace the garage door with a window.

  Granted Lawful development Windows or glazing 10 docs

• 29 Abercorn Way London Southwark SE1 5HL

  26/AP/1614 Submitted 5 Jun 2026 50 yards away

  Certificate of Lawfulness (proposed) for the development of a garage conversion to replace the garage door with a window.

  Granted Windows or glazing

• 64 Abercorn Way London Southwark SE1 5HL

  26/AP/2259 Submitted 29 Jul 2026 50 yards away

  Prior approval notification for the construction of a single storey extension measuring at 5.4m in depth, 3.0m maxium height and 4.7m in width

  Granted Extension 10 docs
  Small domestic

• 50 Abercorn Way London Southwark SE1 5HL

  26/AP/2095 Submitted 16 Jul 2026 50 yards away

  Prior approval notification for the construction of a single storey extension measuring at 6.0m in depth, 3.0m maxium height and 4.8m in width

  Granted Extension 10 docs
  Small domestic

• 42 Abercorn Way London Southwark SE1 5HL

  26/AP/0217 Submitted 26 Jan 2026 50 yards away

  Prior approval notification (Schedule 2, Part 1, Class A) for the erection of a single-storey rear extension projecting 5 metres from the original rear elevation of the property, with a maximum height of 3m.

  Granted Full applications Extension 8 docs
  Small domestic

• 42C Abercorn Way London Southwark SE1 5HL

  25/AP/3245 Submitted 7 Nov 2025 50 yards away

  90% historically approved · decision due ~5 Jan

  Erection of a single-storey rear extension projecting 5 metres from the original rear elevation of the property.

  Awaiting decision Full applications Extension 8 docs
  Small domestic

• 26/AP/2574 Awaiting decision

  23 Alberta Street London Southwark SE17 3SF

  Certificate of lawfulness (proposed) for construction of a rear dormer and the installation of 1x rooflight to the front roofslope.

  Received 1 Sep, published by the council 8 Sep 2026 Lawful development
• 26/AP/2509 Awaiting decision

  Newington Gardens Harper Road London Southwark SE1

  Certificate of Lawfulness (proposed) for improvement works to the playground at Newington Gardens to include the removal of current playground equipment and installation of new accessible equipment.

  Received 21 Aug, published by the council 7 Sep 2026 Lawful development
• 26/AP/1673 Granted

  Flat 67 Benbow House 24 New Globe Walk London Southwark SE1 9DS

  Certificate of Lawful Development to replace existing external doors with new thermally improved doors

  Received 11 Jun, published by the council 25 Jul 2026 Lawful development
• 26/AP/1909 Granted

  6 Ethnard Road London Southwark SE15 1RU

  Certificate of lawfulness (proposed) for a loft conversion with rear dormer

  Received 30 Jun, published by the council 25 Jul 2026 Lawful development
• 26/AP/1759 Granted

  29 Dundas Road London Southwark SE15 2DR

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

  Received 17 Jun, published by the council 25 Jul 2026 Lawful development