5 Ildersly Grove London Southwark SE21 8EU

1. 17 Sep 2021

   Received by Southwark

2. 1 Nov 2021

   Decision issued: Certificate of Lawfulness Prop- GRANTED

3. 12 Oct 2026

   Added to PlanIndex

Southwark granted permission on 1 November 2021, 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.

• 16 Croxted Road London Southwark SE21 8SW

  25/AP/3340 Submitted 14 Nov 2025 50 yards away

  97% historically approved · decision due ~9 Jan

  Removal of a Condition 1 and 3 for planning application 24/AP/3816 dated 14/02/2025 for Removal of existing rear extension and construction of single-storey rear extension and rear roof dormer on main roof house. Removal Condition(s): 1 and 3 Propose a reduction in size for the ground floor extension and a minor material amendment to the ground floor aluminium glazing following conservation conditions on permits issued by the Dulwich Estate Scheme of Management. We are proposing changes to conditions 1 'The development shall be carried out in accordance with the following approved plans' and 3 'The materials to be used in the implementation of this permission shall not be otherwise than as described and specified in the application and on the drawings hereby approved'. Condition 1- Propose to reduce the massing of the extension and potential impact on the neighbours following discussions with the Dulwich Estate Scheme of Management. The extension will now step 5.2m across the rear elevation, stepping back by 1m. This sees the GIA of the ground floor extension reduce from 19.3sqm to 16.6sqm. Propose to change the location of the bin store and omit the bike store from the scheme. This allows us to better meet the planting requirements, as per the Dulwich Estate Guidelines, where at least 50% of the total garden area should be planted. Condition 3: The glazing frames to the ground floor extension are being changed from Dark Grey PPC aluminium frame to White PPC aluminium frame, to better match the appearance of the windows on the storey above. The white painted timber sash windows to the dormer are now revised to add an additional vertical glazing bar to better match the appearance of the windows on the storey below, following discussions with the Dulwich Estate Scheme of Management.

  Awaiting decision Amendments Extension Loft or dormer +1 12 docs
  Small domestic

• 14 Croxted Road London Southwark SE21 8SW

  23/AP/2171 Submitted 2 Aug 2023 50 yards away

  Demolition and reconstruction of the existing outbuilding ancillary to the main house, rear dormer extension and all associated works.

  Granted Householder Extension Loft or dormer +1 25 docs
  Small domestic

• 8 Ildersly Grove London Southwark SE21 8EU

  21/AP/2837 Submitted 9 Aug 2021 50 yards away

  Single-storey rear extension.

  Granted Householder Extension 10 docs
  Small domestic

• 12 Croxted Road London Southwark SE21 8SP

  20/AP/1070 Submitted 10 Apr 2020 100 yards away

  Change of use from Use Class A2 (bank) to Use Class A3 (cafe) at ground floor and basement levels; creation of plant; insertion of new service door and bin store.

  Granted Full applications 41 docs

• 12 Croxted Road London Southwark SE21 8SW

  20/AP/3827 Submitted 24 Dec 2020 100 yards away

  Construction of verandah-type timber structure and 1.8m replacement fence

  Granted Full applications 15 docs
  Small domestic

• Alleyns Head 75 Alleyn Park London Southwark SE21 8BW

  23/AP/2090 Submitted 26 Jul 2023 100 yards away

  Tree works 5 day notification: T1 Dead TPO Sycamore, remove to ground level. Replacement planting as conditioned.

  Granted Trees 4 docs

• 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/2486 Awaiting decision

  84 Croxted Road London Southwark SE21 8NP

  Certificate of lawfulness (proposed) for the formation of a moveable structure (as defined under the Caravan Site Act) that can be separated into 2 sections and removed from the rear garden by crane. Refer to the following drawings: 318 SP 00 (PD) 318 SP 01 (PD) 318 SP 101 (PD) 318 GS 01 (PD) 318 GS 02 (PD)

  Received 19 Aug, published by the council 20 Aug 2026 Lawful development