51 Calton Avenue London Southwark SE21 7DF

1. 7 Jan 2026

   Received by Southwark

2. 8 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 Mar 2026

   Decision issued: Householder - GRANTED

4. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 55 Calton Avenue London Southwark SE21 7DF

  23/AP/2601 Submitted 15 Sep 2023 17m 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 17m away

  100% 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

• 57 Calton Avenue London Southwark SE21 7DF

  25/AP/2851 Submitted 2 Oct 2025 26m away

  100% 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

• 61 Calton Avenue London Southwark SE21 7DF

  23/AP/1984 Submitted 17 Jul 2023 43m 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

• 39 Calton Avenue London Southwark SE21 7DF

  20/AP/3048 Submitted 19 Oct 2020 44m away

  T1 - Medium Bay tree on LHS of rear garden. Tree is causing excessive shading and needs to be maintained at a significantly smaller size. Crown reduce by 50%. T2 - Umbrella Pine on RHS of garden. Tree is causing excessive shading to Japanese Acer under canopy and should be removed to allow space for this to grow. Section fell to ground level.

  Granted Trees 7 docs

• 33 Calton Avenue London Southwark SE21 7DE

  26/AP/1314 Submitted 7 May 2026 65m away

  Tree ID -Common Name Work Task Description 7874 Common Lime Crown Lift crown lift to 2.4m above ground level over pavement and over adjacent property (reduce back to closest growth point). retaining branches where applicable. 7869 Common lime - Crown Lift .crown lift to 2.4m above ground level over pavement. (reduce to closest growth point) retaining branches where applicable.

  Granted Trees 6 docs

• 26/AP/0707 Granted

  33 Abbotswood Road London Southwark SE22 8DJ

  Construction of a rear dormer extension and ground floor rear extension.

  11 Mar 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.

  18 Mar 2026 Householder
• 26/AP/1488 Granted

  15 Canon Beck Road London Southwark SE16 7DJ

  Loft conversion including the insertion of 2 no. rooflights to the front roof slope; conversion of the existing garage to a habitable room with an associated window to replace the existing garage door on the front elevation, installation of an Air Source Heat Pump and other alterations to the rear elevation fenestration at ground floor level.

  22 May 2026 Householder
• 26/AP/0971 Granted

  86 Henslowe Road London Southwark SE22 0AS

  Retrospective planning permission for alterations to front garden layout including a front porch with projecting canopy, alterations to window apertures and fenestration, provision of cycle and refuses stores, along with hard and soft landscaping. new bin store and raised porch roof and revisions to front elevation fenestration.

  2 Apr 2026 Householder
• 26/AP/1519 Granted

  61 Tyrrell Road London Southwark SE22 9NE

  Construction for a rear and side wrap around ground floor extension

  27 May 2026 Householder