15A Sydenham Hill London Southwark SE26 6SH

1. 30 Oct 2025

   Received by Southwark

2. 31 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 26 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Southwark took a median of 52 days over the applications it decided in the last year.

This application is with Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 15 Sydenham Hill London Southwark SE26 6SH

  25/AP/3772 Submitted 22 Dec 2025 23m away

  95% historically approved · decision due ~17 Feb

  Single-storey rear extension, side staircase, extension to existing annexe, basement conversion with extension, roof dormers and front boundary treatment.

  Awaiting decision Householder Extension Loft or dormer 30 docs
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  23/AP/1965 Submitted 14 Jul 2023 23m away

  Works to TPO trees:T1 - Cherry tree approximately 6m in height: Crown thin by 20% including the removal of dead wood and necessary re-shaping. The height and basic shape would be retained. It is important to prune branches at convenient growth points rather than an all round reduction or pollarding which is not permitted.T2 - Camellia tree approximately 6m in height: Reduce in height to just below cill level of the front bedroom window and reshape as necessary.T3 - Almond tree approximately 6m in height: Crown thin by 20% including the removal of dead wood and necessary reshapingT4 - Oak tree approximately 16m in height: Crown thin by 20% including the removal of dead wood and necessary reshaping. The height and basic shape should be retained. It is important to prune branches at convenient growth points rather than an all round reduction or pollarding which is not permitted.T5 - Camellia tree approximately 5.5m in height: Reduce all round to a more formal shape including the removal of dead wood.T6 - Magnolia tree approximately 5-6m in height: Reshape to form a more balanced specimen including the removal of dead woodT7 - Two cherry trees approximately 7.5m in height: Lightly thin and reshape to provide more formal specimensT8 - Hornbeam group approximately 9m in height: The height to be reduced from under the Oak canopy and crown thinned by 20% including the removal of dead wood and necessary reshaping.T9 - Yew tree approximately 6m in height: Crown thin by 20% including the removal of dead wood and necessary reshaping. The height and basic shape should be retained.

  Granted Trees 6 docs

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2074 Submitted 13 Jul 2026 33m away

  95% historically approved · decision due ~8 Sep

  Details of condition 8 (Hedgehog accesses) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing ground floor fenestration, and installation of new front boundary treatment.'

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2042 Submitted 13 Jul 2026 33m away

  95% historically approved · decision due ~8 Sep

  Details of condition 3 (Demolition and Construction Environmental Management Plan (DCEMP)) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing ground floor fenestration, and installation of new front boundary treatment.'

  Awaiting decision Extension Loft or dormer +2
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2075 Submitted 13 Jul 2026 33m away

  95% historically approved · decision due ~8 Sep

  Details of condition 9a (Bee bricks and/or invertebrate hotels) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing ground floor fenestration, and installation of new front boundary treatment.'

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2073 Submitted 13 Jul 2026 33m away

  95% historically approved · decision due ~8 Sep

  Details of condition 7a (Bat tubes, bricks or boxes) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing ground floor fenestration, and installation of new front boundary treatment.'

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 26/AP/0707 Granted

  33 Abbotswood Road London Southwark SE22 8DJ

  Construction of a rear dormer extension and ground floor rear extension.

  11 Mar 2026 Householder
• 26/AP/0784 Granted

  60 Grove Park London Southwark SE5 8LF

  Refurbishment of the property including replacement of glazing with thermally efficient conservation windows templated after originals, construction of a single-storey rear extension, a loft extension, minor internal partition alterations, and removal of external soil vent pipes.

  18 Mar 2026 Householder
• 26/AP/1488 Granted

  15 Canon Beck Road London Southwark SE16 7DJ

  Loft conversion including the insertion of 2 no. rooflights to the front roof slope; conversion of the existing garage to a habitable room with an associated window to replace the existing garage door on the front elevation, installation of an Air Source Heat Pump and other alterations to the rear elevation fenestration at ground floor level.

  22 May 2026 Householder
• 26/AP/0971 Granted

  86 Henslowe Road London Southwark SE22 0AS

  Retrospective planning permission for alterations to front garden layout including a front porch with projecting canopy, alterations to window apertures and fenestration, provision of cycle and refuses stores, along with hard and soft landscaping. new bin store and raised porch roof and revisions to front elevation fenestration.

  2 Apr 2026 Householder
• 26/AP/1519 Granted

  61 Tyrrell Road London Southwark SE22 9NE

  Construction for a rear and side wrap around ground floor extension

  27 May 2026 Householder