Planning application
65 Calton Avenue London Southwark SE21 7DF
Works: Extension Loft or dormer Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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.
As published by the council, reference 26/AP/2517
Application record
- Reference
- 26/AP/2517
- Status
- Under consideration/assessment
- Received
- 24 Aug 2026
- Validated
- 3 Sep 2026
- Postcode
- SE21 7DF
Timeline
Dates from the published record
-
24 Aug 2026
Received by Southwark
-
28 Aug 2026
Added to PlanIndex
-
3 Sep 2026
Validated
Checked as complete and ready for consideration.
-
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.
What happens while it is decided
The process from here
This application is with Southwark for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About this record
Reading the register
This page mirrors an entry on the statutory planning register that Southwark is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.
Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.
Nearby applications
Within 500 metres
-
61 Calton Avenue London Southwark SE21 7DF
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 docsSmall domestic -
57 Calton Avenue London Southwark SE21 7DF
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 -
11 Gilkes Crescent London Southwark SE21 7BP
Tree works 5 day notification: Dead, dying and dangerous' for a dead Willow tree to be felled
Granted Trees 4 docs -
55 Calton Avenue London Southwark SE21 7DF
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 docsSmall domestic -
55 Calton Avenue London Southwark SE21 7DF
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 -
51 Calton Avenue London Southwark SE21 7DF
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 docsSmall domestic