15A Sydenham Hill London Southwark SE26 6SH

This site has had 2 applications since 2022: 1 approved, 0 refused.

• 22/AP/0118 Granted

  15A Sydenham Hill London Southwark SE26 6SH

  Sycamore (T1) positioned to the lower rear right hand boundary of the garden - remove. Replace with 14-16cm Gleditsia triacanthos Sunburst.Oak (T2) - positioned reasonably close to the rear right hand side of the garden - lightly thin overcrowded areas by up to 20% including the removal of epicormic and dead wood.

  Decided 4 Mar 2022 Trees

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.

• 15A Sydenham Hill London Southwark SE26 6SH

  22/AP/0118 Submitted 17 Jan 2022 50 yards away

  Sycamore (T1) positioned to the lower rear right hand boundary of the garden - remove. Replace with 14-16cm Gleditsia triacanthos Sunburst.Oak (T2) - positioned reasonably close to the rear right hand side of the garden - lightly thin overcrowded areas by up to 20% including the removal of epicormic and dead wood.

  Granted Trees 11 docs

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2074 Submitted 13 Jul 2026 50 yards 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 Conditions Extension Loft or dormer +1 5 docs
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2075 Submitted 13 Jul 2026 50 yards away

  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.'

  Granted Conditions Extension Loft or dormer +1 5 docs
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  26/AP/2044 Submitted 13 Jul 2026 50 yards 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 Conditions Extension Loft or dormer +1 5 docs
  Small domestic

• 15 Sydenham Hill London Southwark SE26 6SH

  25/AP/3772 Submitted 22 Dec 2025 50 yards 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 50 yards 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

• 26/AP/2158 Granted

  7 Alma Grove London Southwark SE1 5PY

  Erection of a rear ground floor side extension with a framed glass roof and bi-folding rear doors. Replacement of windows and door. Alterations to external facade.

  Received 21 Jul, published by the council 25 Jul 2026 Householder
• 26/AP/2601 Awaiting decision

  49 Henshaw Street London Southwark SE17 1PE

  Demolition of existing rear extension and construction of part single, part two storey rear extension and erection of roof terrace on main roof with balustrades and glazed access hatch.

  2 Sep 2026 Householder
• 26/AP/2545 Awaiting decision

  76 Shenley Road London Southwark SE5 8NQ

  Construction of a single storey side and rear extension to the rear; construction of a rear dormer roof extension over the main roofslope and the installation of 3x rooflights to the front roofslope.

  Received 26 Aug, published by the council 3 Sep 2026 Householder
• 26/AP/2533 Awaiting decision

  28 Tyrrell Road London Southwark SE22 9NE

  Construction of rear extension.

  Received 25 Aug, published by the council 28 Aug 2026 Householder
• 26/AP/2517 Awaiting decision

  65 Calton Avenue London Southwark SE21 7DF

  Construction of a ground-floor side-rear extension with terrace reinstated above; alterations to the rear outrigger, including raising the eaves and ridge, removal of the chimney stack, replacement windows, and installation of two rooflights; enlargement of the existing rear dormer; erection of bin and bike stores in the front garden, together with new landscaping and a front boundary wall; installation of an EV charger to front elevation and removal of existing front porch door; removal of existing garden buildings and erection of a shed, sauna and pergola in the rear garden, together with new landscaping and decking.

  Received 24 Aug, published by the council 28 Aug 2026 Householder