65 Calton Avenue London Southwark SE21 7DF

1. 24 Aug 2026

   Received by Southwark

2. 28 Aug 2026

   Added to PlanIndex

3. 3 Sep 2026

   Validated

   Checked as complete and ready for consideration.

4. Decision

   Awaiting decision

   Decision expected by 29 October 2026, 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.

• 81 Calton Avenue London Southwark SE21 7DF

  26/AP/2694 Submitted 11 Sep 2026 50 yards away

  95% historically approved · decision due ~9 Nov

  Works to a tree in a conservation area: XL Weeping Willow tree. Main stem of Willow snapped out in the middle of the summer. Remaining tree needs to be reduced and reshaped as annotated in the photos attached. Consider having a prop to support lower lateral limb growing towards the house.

  Decided Trees

• 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

• 69 And 71 Calton Avenue London SE21 7DF

  21/AP/3772 Submitted 1 Nov 2021 50 yards away

  Non material amendment to planning permission ref. 19/AP/0231 dated 20th June 2019 for 'Proposed Works to No 71 Construction of a single storey rear extension with roof terrace at first floor level and new balustrade to existing roof terrace. Proposed Works to No 69Construction of ground floor rear extension, increase in height of two storey rear outrigger, replacement of rear dormer with a rear dormer widened by 150mm and new balustrade to existing roof terrace'. The amendment seeks the following: two roof lights added to roof. All new bricks changed from reclaimed London Stock to new 'London Stocks' to match existing by Imperial Bricks. Roof dormer cladding changed from render to zinc. Concealed retractable awning added to rear elevation of extension.

  Decided Conditions Extension Loft or dormer 9 docs
  Small domestic

• 71 Calton Avenue London Southwark SE21 7DF

  24/AP/0316 Submitted 7 Feb 2024 50 yards away

  The retention of the squaring of the existing rear outrigger facade and non retention of rear chimney

  Granted Householder Extension 22 docs
  Domestic

• 57 Calton Avenue London Southwark SE21 7DF

  25/AP/2851 Submitted 2 Oct 2025 50 yards away

  99% historically approved · decision due ~27 Nov

  Willow (T1) - Reduction in height by 2m, from 10m to 8m, reduction in lateral spread by 2m, from 9m to 7m, reduction to shape canopy, pruning to suitable points and maintaining natural aesthetic Cordyline (T2) - fell tree approximately 8m in height

  Awaiting decision Trees 8 docs

• 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

• 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/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.

  Received 18 Mar, published by the council 28 Jul 2026 Householder