29 Tylney Avenue London Southwark SE19 1LN

1. 15 Sep 2025

   Received by Southwark

2. 16 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 23 Oct 2025

   Decision issued: Certificate of Lawfulness Prop- GRANTED

4. 10 Aug 2026

   Added to PlanIndex

Southwark granted permission on 23 October 2025, 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.

• Pavement At Dulwich Wood Park London Southwark SE19 1XQ

  22/AP/2985 Submitted 25 Aug 2022 31m away

  Prior approval notification for proposed telecommunications installation for a proposed 15.0m Phase 9 slimline Monopole and associated ancillary works.

  Refused Telecoms 17 docs

• 34 Tylney Avenue London Southwark SE19 1LN

  22/AP/3260 Submitted 12 Sep 2022 42m away

  Certificate of lawful development (proposed) for a single storey rear extension and rear dormer to terraced house.

  Granted Lawful development Extension Loft or dormer 10 docs
  Small domestic

• Ingall Lodge 8 Dulwich Wood Park London Southwark SE19 1XQ

  22/AP/3587 Submitted 17 Oct 2022 57m away

  T1 - Mature Oak tree, to lightly thin overcrowded areas and gently shape the overhang into the garden with a maximum reduction where needed of 1m. Dead wood also to be removed.

  Granted Trees 7 docs

• 88 Farquhar Road London Southwark SE19 1LT

  26/AP/1041 Submitted 10 Apr 2026 65m away

  Details of condition 3 (details foundation design (trees)) pursuant to planning permission 25/AP/1743 (Construction of a single-storey front extension with 1no. rooflight, and replacement of existing windows and doors)

  Granted Conditions Extension Loft or dormer +2 13 docs
  Small domestic

• 6 Dulwich Wood Park London Southwark SE19 1XQ

  22/AP/3667 Submitted 21 Oct 2022 68m away

  Oak tree approximately 15m in height situated in the right hand corner of the front garden adjacent to Dulwich Wood Park. The tree is a little dense and leaning to the left side when viewed from the road. Crown thin by 20% including the removal of dead wood lifting low branches and necessary reshaping. The height, balance and basic shape should be retained. To prune at convenient growth points rather than all round reduction and pollarding which is not permitted.

  Granted Trees 5 docs

• 18 Tylney Avenue London Southwark SE19 1LN

  22/AP/1575 Submitted 5 May 2022 70m away

  A rear roof-level dormer extension and a single sloping rooflight at roof level that is sized and positioned to operate as a smoke vent

  Granted Lawful development Extension Loft or dormer 19 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