Planning application
20 A Quinton Street SW18 3QS
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Alterations including erection of mansard roof extension to main rear roof (with French doors and safety railings) including raising the ridge by 200mm and extension above part of two-storey back addition; formation of roof terrace above two-storey back addition with 1.7m high screen surround. Metal staircase to rear (AMMENDED DESCRIPTION)
As published by the council, reference 2026/1234
Application record
- Reference
- 2026/1234
- Type
- Application for Full Permission
- Status
- FINAL DECISION
- Decision
- Approve with Conditions
- Received
- 30 Mar 2026
- Validated
- 20 Apr 2026
- Decided
- 5 Jun 2026
- Ward
- Wandsworth Common
- Decision by
- Delegated Standard
- Postcode
- SW18 3QS
Timeline
Dates from the published record
-
30 Mar 2026
Received by Wandsworth
-
20 Apr 2026
Validated
Checked as complete and ready for consideration.
-
5 Jun 2026
Decision issued: Approve with Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
7 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat a grant of permission means
The process from here
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.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
-
26 A Quinton Street SW18 3QS
Alterations including erection of mansard roof extension to main rear roof including raising the ridge by 200mm and extension above part of two-storey back addition
Granted Full applications Extension Loft or dormer 21 docs -
5 A Quinton Street SW18 3QR
Non-material amendment to planning permission dated 06/06/2024 ref 2024/0668 (Alterations including erection of mansard roof extension to main rear roof; erection of roof extension and formation of roof terrace with 1.7m glass safety surround above two storey back addition. Installation of external staircase to rear elevation provide access to garden.) to allow amendments to roof lights and raise the rear flat roof about 10cm to be same level as front flat roof, changes to roof terrace and other design changes
Refused Amendments Extension Loft or dormer 4 docs -
5 A Quinton Street SW18 3QR
Variation of condition 2 (in accordance with approved drawings) pursuant to planning permission dated 04/06/2024 ref 2024/0668 (Alterations including erection of mansard roof extension to main rear roof; erection of roof extension and formation of roof terrace with 1.7m glass safety surround above two storey back addition. Installation of external staircase to rear elevation provide access to garden.) to allow design changes including roof and fenestration changes as follows: flat roof now flush, removal of windows to the dormer side wall, increase in the size of the roof terrace, front roof slope to include one skylight and two skylights on the flat roof, face of the primary dormer wing previously slanted, now straight, amendments to external staircase dimensions.
Granted Amendments Extension Loft or dormer +1 6 docs -
9 Littleton Street SW18 3SZ
89% historically approved · decision due ~24 Sep
Alterations including extension over two storey back addition.
Awaiting decision Extension -
51 Littleton Street SW18 3SZ
Alterations including erection of second floor rear extension to provide enlarged mansard extension above two-storey back addition; replacement of window within existing mansard extension to main rear roof with french doors with railing in front and installation of new skylight; replacement of glazing within existing single storey rear/side addition.
Refused Householder Extension Loft or dormer +1 6 docsSmall domestic -
51 Littleton Street SW18 3SZ
Erection of a dormer extension to main rear roof and extension above rear two-storey addition.
Granted Lawful development Extension Loft or dormer 8 docs
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