15 Sydenham Hill London Southwark SE26 6SH

This site has had 10 applications since 2023: 4 approved, 0 refused.

• 26/AP/2548 Awaiting decision

  15 Sydenham Hill London Southwark SE26 6SH

  Non-material amendment to 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.) The amendment seeks to remove the approved basement extension and reconfigure the terrace above; remove the approved south side (staircase) extension; replace the approved two side-facing windows within the existing annexe with a single high level window; amend the description of development accordingly; and remove Condition 11 (Basement Impact Assessment), which is no longer required.

  Submitted 26 Aug 2026
• 26/AP/2227 Decided

  15 Sydenham Hill London Southwark SE26 6SH

  Details of Condition 5 (Detailed drawings) 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.'

  Submitted 27 Jul 2026
• 26/AP/2254 Decided

  15 Sydenham Hill London Southwark SE26 6SH

  Details of Condition 4 (Material samples) 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.'

  Submitted 27 Jul 2026
• 26/AP/2074 Granted

  15 Sydenham Hill London Southwark SE26 6SH

  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.'

  Decided 1 Sep 2026
• 26/AP/2042 Awaiting decision

  15 Sydenham Hill London Southwark SE26 6SH

  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.'

  Submitted 13 Jul 2026 Conditions
• 26/AP/2073 Decided

  15 Sydenham Hill London Southwark SE26 6SH

  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.'

  Submitted 13 Jul 2026
• 26/AP/2044 Granted

  15 Sydenham Hill London Southwark SE26 6SH

  Details of condition 6a (Bird 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.'

  Decided 1 Sep 2026
• 25/AP/3772 Awaiting decision

  15 Sydenham Hill London Southwark SE26 6SH

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

  Submitted 22 Dec 2025 Householder
• 23/AP/1965 Granted

  15 Sydenham Hill London Southwark SE26 6SH

  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.

  Decided 16 Aug 2023 Trees

1. 13 Jul 2026

   Received by Southwark

2. 14 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. 1 Sep 2026

   Decision issued: AOD - Granted

5. 10 Sep 2026

   Status changed to Granted

   Previously Under consideration/assessment.

• 25/AP/3772 Awaiting decision

  15 Sydenham Hill London Southwark SE26 6SH

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

  Submitted 22 Dec 2025 Householder

Southwark granted permission on 1 September 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.

The published feed does not state which type of application this is; the register entry on Southwark's portal will say. Our guide explains the common types.

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2074 Submitted 13 Jul 2026 0m away

  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.'

  Granted Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2073 Submitted 13 Jul 2026 0m 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.'

  Decided Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2044 Submitted 13 Jul 2026 0m away

  Details of condition 6a (Bird 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.'

  Granted Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2548 Submitted 26 Aug 2026 0m away

  95% historically approved · decision due ~4 Nov

  Non-material amendment to 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.) The amendment seeks to remove the approved basement extension and reconfigure the terrace above; remove the approved south side (staircase) extension; replace the approved two side-facing windows within the existing annexe with a single high level window; amend the description of development accordingly; and remove Condition 11 (Basement Impact Assessment), which is no longer required.

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2227 Submitted 27 Jul 2026 0m away

  95% historically approved · decision due ~22 Sep

  Details of Condition 5 (Detailed drawings) 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.'

  Decided Extension Loft or dormer +1
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2254 Submitted 27 Jul 2026 0m away

  95% historically approved · decision due ~22 Sep

  Details of Condition 4 (Material samples) 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.'

  Decided Extension Loft or dormer +1
  Small domestic