57 Calton Avenue London Southwark SE21 7DF

1. 2 Oct 2025

   Received by Southwark

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 27 November 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 tree works applications in a median of 35 days. More in our guide to how long planning decisions take.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 55 Calton Avenue London Southwark SE21 7DF

  23/AP/2601 Submitted 15 Sep 2023 50 yards away

  Proposed works to replace the existing conservatory with a new single storey side infill extension; increase the height of the rear outrigger roof to create a new bedroom within the attic space, with associated roof lights. The reconfiguration of the outrigger's first floor window and door to the terrace, and the replacement of the second floor rear dormer with a wider dormer window. Window replacements to front, rear and side elevations.

  Granted Householder Extension Loft or dormer +1 30 docs
  Small domestic

• 55 Calton Avenue London Southwark SE21 7DF

  25/AP/3065 Submitted 21 Oct 2025 50 yards away

  99% historically approved · decision due ~16 Dec

  Works to tree in a conservation area: Lime (T1) - crown reduce Reduce height by 3m from 11m to 8m. Reduce lateral spread by 3m from 10m to 7m. Reduction to shape canopy, pruning to suitable points and maintaining natural aesthetic. There are a number of dead limbs and die back in the canopy. The general physiological condition appears to be declining. It is hoped that the reduction will promote healthier growth. The tree will tolerate the pruning as specified above.

  Awaiting decision Trees 5 docs

• 61 Calton Avenue London Southwark SE21 7DF

  23/AP/1984 Submitted 17 Jul 2023 50 yards away

  Raising of the existing outrigger roof by approx. 1050mm, to provide additional floorspace on the Second Floor. A new sash window matching the existing windows will replace the small existing window of the outrigger and two rooflights are added to the outrigger roof. The existing dormer on the rear elevation is proposed to be widened by approx. 700mm with two new sash windows to match the existing. The new dormer roof will be finished with roof tiles that will match the existing.The proposed works also include a new conservatory infill extension to the Ground Floor and the Crittall -type glazed conservatory extension will have a matching glazed roof to provide further sunlight into the Ground Floor space. The existing rooflight and double doors to the side of the proposed conservatory will be replaced with a Crittall-type rooflight and double doors, respectively, to match the proposed conservatory.

  Granted Householder Extension Loft or dormer +2 32 docs
  Small domestic

• 51 Calton Avenue London Southwark SE21 7DF

  21/AP/3895 Submitted 9 Nov 2021 50 yards away

  (T1) Dead Willow: Monolith / pollard to a height of 4m, leaving stubs for a feature (T2) Apple: crown thin by 20%, crown reduce and reshape by 30% - tree is dying (one limb almost completely dead) - will try to retain tree for another two years then replant with a high amenity species. Height from 5.8m to 4m N from 1.9m to 1.5m E from 2.2m to 1.5m S from 2.0m to 1.5m W from 2.3m to 1.5m (T3) Cherry: remove dying stem affected by bacterial canker and remove any remaining deadwood from rest of tree.

  Granted Trees 8 docs

• 51 Calton Avenue London Southwark SE21 7DF

  26/AP/0030 Submitted 7 Jan 2026 50 yards away

  Replace exiting timber framed outbuilding and hardstanding with new insulated timber framed outbuilding to be used for purposes ancillary to the main home.

  Granted Householder 19 docs
  Small domestic

• 65 Calton Avenue London Southwark SE21 7DF

  26/AP/2517 Submitted 24 Aug 2026 50 yards away

  95% historically approved · decision due ~29 Oct

  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.

  Awaiting decision Householder Extension Loft or dormer +1 33 docs
  Small domestic

• 26/AP/2635 Awaiting decision

  Flat 3 3 Crescent Wood Road London Southwark SE26 6RT

  T7473 - Common Holly -Young twin-stemmed holly, (likely self set) with very sparse canopy and poor vitality, symptomatic with the suppression from the adjacent mature trees. Proposed fell to 50cm above ground level and treat with systemic herbicide (ECO-PLUG). Replacement tree in line with TDE's tree replacement policy.

  Received 4 Sep, published by the council 7 Sep 2026 Trees
• 26/AP/2625 Awaiting decision

  Alleyns School Townley Road London Southwark SE22 8SU

  Works to a tree with a TPO: 1. Sorbus aucuparia T164 - Condemed by tree officer. Slow death, bacterial canker, vigarous shooting from the base. Remove tree and replace with Sciadopitys verticillata. 2. Aesculus hippocastanum T161 - Veteranisation over two years. First cuts to 8m reduction. Mower damage and Ganoderma present. 3m radial mulch and rope off to reduce risk of failing and prolong life of tree. 3. Aesculus hippocastanum T157 - Condemed by tree officer. Reduce height to 3m monolith for biodiversity, replant with with Celtis australis. 4. Aesculus hippocastanum T156 - Condemed by tree officer. Reduce height to 4m monolith for biodiversity, replant with Liquidambar styraciflua. 5. Aesculus hippocastanum T154 - Lift to 5m above storage bays to reduce potential for damage. Tree officer stated that A. hippocastanum is becoming less and less suitable for our climate, with considerations to site and use. All efforts made to rope off mature trees and mulch root plate to prolong their life.

  Received 4 Sep, published by the council 7 Sep 2026 Trees
• 26/AP/2602 Awaiting decision

  24A Talfourd Road London Southwark SE15 5NY

  Works to tree with a TPO: T1 - Common ash - fell. 18m in height. Fell tree to ground level. A mature common ash (Fraxinus excelsior) standing in the rear garden, closely surrounded by residential property on several sides.

  2 Sep 2026 Trees
• 26/AP/2584 Awaiting decision

  Naismith House 175 Tower Bridge Road London Southwark SE1 2AH

  To carry out works to trees with a TPO within the grounds of St Johns Churchyard, Southwark, London, SE1 2AH.

  Received 1 Sep, published by the council 8 Sep 2026 Trees
• 26/AP/2033 Granted

  South London Scout Centre Grange Lane London Southwark SE21 7LH

  Works to trees in a Conservation Area. Agreed amendment email dated Fri 31/07/2026 11:57 T1 Lombardy Poplar. Fell to Ground Level. T2 Lombardy Poplar. Large Trunk wound. Fell to Ground Level. T3 Lombardy Poplar. Fire Damaged. Fell to Ground Level. Review fire protocols. i.e.; no fires within 5m of any tree and 2m away from any canopy. T4 Hybrid Poplar. Reduce to 1m Above Ground Level (AGL). T5 Lombardy Poplar. 50% reduction back to live wood, leaving a 10m high tree. T6 Lombardy Poplar. 50% reduction back to live wood, leaving a 10m high tree. T7 Carolina Poplar. Fell to Ground Level T8 Carolina Poplar Further testing required. PICUS. Wound occlusion and physiology appear GOOD. T9 Carolina Poplar. Good rib formation. Reduce to 4m AGL and retain as monolith for biodiversity. T10 Crack Willow. Reduce to previous reduction points, retaining knuckles. T11 Carolina Poplar. Remove specified branch. Move Mobile Home to designated parking area or install no-dig 3D geocellular ground protection within RPA. Remove rope from stem or install cambium saver. T12 European Ash. scar indicates failure of a bifurcated stemmed tree. Reduce to 4m AGL and retain as monolith. T13. Wild Cherry. Fell to Ground Level. Dead Tree T14 Lombardy Poplar. Crown Dieback. Reduce to 6m AGL. Crown Dieback T15 Lombardy Poplar. Dead Tree, Fell to Ground Level.

  Received 13 Jul, published by the council 25 Jul 2026 Trees