123 Alleyn Park London Southwark SE21 8AA

This site has had 2 applications since 2026.

• 26/AP/1767 Decided

  123 Alleyn Park London Southwark SE21 8AA

  Tree ID 7971 A Bullbay Magnolia tree approximately 9.7m in height, situated in the rear garden. Reduce height by up to 2m back to closest growth point. Reshape canopy by tying into height. Tree ID 7972 A Tulip tree approximately 13.8m in height, situated in the front garden. The tree overhangs the pavement and the TFL signs. Reduce branches to 50cm away from street sign, back to closest growth point and crown lift to 3m above ground level over pavement. Tree ID 7973 A Bird Cherry tree approximately 4.6m in height, situated in the front garden. The canopy is overhanging the pavement. Crown lift to 2.4m above ground level over pavement.

  Submitted 18 Jun 2026

1. 19 Aug 2026

   Received by Southwark

2. 20 Aug 2026

   Added to PlanIndex

3. 24 Aug 2026

   Status changed to Granted

   Previously Under consideration/assessment.

Southwark has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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.

• 123 Alleyn Park London Southwark SE21 8AA

  26/AP/1767 Submitted 18 Jun 2026 0m away

  95% historically approved · decision due ~13 Aug

  Tree ID 7971 A Bullbay Magnolia tree approximately 9.7m in height, situated in the rear garden. Reduce height by up to 2m back to closest growth point. Reshape canopy by tying into height. Tree ID 7972 A Tulip tree approximately 13.8m in height, situated in the front garden. The tree overhangs the pavement and the TFL signs. Reduce branches to 50cm away from street sign, back to closest growth point and crown lift to 3m above ground level over pavement. Tree ID 7973 A Bird Cherry tree approximately 4.6m in height, situated in the front garden. The canopy is overhanging the pavement. Crown lift to 2.4m above ground level over pavement.

  Decided Trees

• 121 Alleyn Park London Southwark SE21 8AA

  22/AP/1968 Submitted 1 Jun 2022 0m away

  Non-material amendment following planning permission 21/AP/2708 (Construction of ground floor L shape rear extension) to install solar panels on the roof, extend the proposed rear extension but remove the proposed side extension.

  Decided Conditions Extension 11 docs

• 109 Alleyn Park London Southwark SE21 8AA

  23/AP/2535 Submitted 7 Sep 2023 69m away

  Works to trees in a conservation area. T1. A Judas tree (Cercis) approximately 9m in height, situated in the front right-hand corner. Lightly thin by approximately 15% including the removal of any dead wood, lifting of low branches and the necessary shaping of the tree, ensuring the height and basic shape is retained.T2. A Holm Oak tree approximately 10m in height, situated in a central location on the front boundary. Low branches to be lifted or shortened back to convenient growth points. The crown should be thinned by approximately 20% including the removal of dead wood, and necessary re-shaping ensuring the height and basic shape is retained.T3. A Eucalyptus tree approximately 16m in height, situated close to the house on the left-hand side boundary of the rear garden. Reduce in height by up to 5m and re-shape as necessary.

  Granted Trees 7 docs

• 121 Alleyn Park London Southwark SE21 8AA

  20/AP/2719 Submitted 22 Sep 2020 169m away

  Holm Oak (T1) - crown reduce, lift & thin. Reduce height by 1m from 10m to 9m and reduce lateral spread by 1m from 8m to 7m. Very light reduction to shape tree whilst maintaining natural canopy and natural aesthetic. Crown lift live canopy to 4m above ground level. Crown thin by 20%. Work undertaken to improve light conditions in owners and neighbouring properties.

  Granted Trees 8 docs

• 150 Thurlow Park Road London Southwark SE21 8HN

  23/AP/2616 Submitted 18 Sep 2023 213m away

  Tree works 5 day notification: T1 Sycamore: Tree in Severe Decline. Potential Sooty Bark Disease. Fell and replace with 14-16cm Sorbus torminalis (Wild Service tree) in next planting season.

  Granted Trees 4 docs

• 16 Croxted Road London Southwark SE21 8SW

  25/AP/3340 Submitted 14 Nov 2025 240m away

  95% 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