Planning application
14-16 Treport Street SW18 2BP
Works: New dwelling Extension Loft or dormer
Relates to 2025/4086
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Details of water calculations, cycle storage, and waste stroage pursuant to conditions 7, 8 and 9 of planning permission dated 20/02/2026 ref. 2025/4086 (Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats.
As published by the council, reference 2026/1059
Application record
- Reference
- 2026/1059
- Type
- Details (following full perm.)
- Status
- FINAL DECISION
- Decision
- Refuse
- Received
- 17 Mar 2026
- Validated
- 27 Mar 2026
- Decided
- 27 May 2026
- Ward
- Wandle
- Decision by
- Delegated Standard
- Postcode
- SW18 2BP
Site history
Applications at this address on the Wandsworth register
This site has had 3 applications since 2025: 2 approved, 1 refused.
-
2026/2100 Granted
14-16 Treport Street SW18 2BP
Details of water calculations, cycle storage, and waste storage pursuant to conditions 7, 8 and 9 of planning permission dated 20/02/2026 ref. 2025/4086 - Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats.
-
2025/4086 Granted
14-16 Treport Street SW18 2BP
Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats. [RECONSULT DUE TO AMENDMENTS] namely: reduced size of rear terraces, installation of 1.7m opaque screens surrounding terraces, reduced size of rooflights to front elevation and open riser stairs to access new residential units.
Timeline
Dates from the published record
-
17 Mar 2026
Received by Wandsworth
-
27 Mar 2026
Validated
Checked as complete and ready for consideration.
-
27 May 2026
Decision issued: Refuse
-
10 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
2025/4086 Granted
14-16 Treport Street SW18 2BP
Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats. [RECONSULT DUE TO AMENDMENTS] namely: reduced size of rear terraces, installation of 1.7m opaque screens surrounding terraces, reduced size of rooflights to front elevation and open riser stairs to access new residential units.
Documents
Plans, drawings, consultee responses and the officer's report
10 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 this refusal means
Wandsworth refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
14-16 Treport Street SW18 2BP
Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats. [RECONSULT DUE TO AMENDMENTS] namely: reduced size of rear terraces, installation of 1.7m opaque screens surrounding terraces, reduced size of rooflights to front elevation and open riser stairs to access new residential units.
Granted Full applications New dwelling Extension +1 12 docs -
14-16 Treport Street SW18 2BP
Details of water calculations, cycle storage, and waste storage pursuant to conditions 7, 8 and 9 of planning permission dated 20/02/2026 ref. 2025/4086 - Alterations including erection of mansard extensions to the main rear roof including raising the existing ridge heights by 180mm; erection of extensions above part of the two-storey back additions and formation of roof terraces above the two-storey back additions. Proposed works in connection with creation of 2 additional two-bedroom flats.
Granted New dwelling Extension +1 -
6B Treport Street SW18
Erection of mansard style rear roof extension to main roof and over part of rear addition.
Withdrawn Householder Extension Loft or dormer 10 docsDomestic -
50 Aslett Street SW18 2BN
89% historically approved · decision due ~24 Sep
Alterations including erection of a rear roof extension to main roof and an extension over the two-storey rear addition.
Awaiting decision Extension -
42 Aslett Street SW18 2BN
Erection of single storey side extension.
Granted Householder Extension 6 docsSmall domestic -
Flat First Floor A 195 Garratt Lane SW18 4DR
Details of BREEAM (post construction) pursuant to condition 4 planning permission dated 18/12/2023 ref 2023/3708 (Alterations including erection of mansard roof extension to main rear roof, including raising the ridge by 300mm. Extension above twostorey back addition with French doors and formation of a roof terrace with glazed 1.7m screen surround; Installation of French doors and safety railings to first and second floor back addition replacing existing windows; installation of 2 x windows to second floor, and replacement windows to first floor side elevation of back addition. Works in connection with the proposed conversion of the existing 1 x 3-bedroom flat to 3 x 1-bedroom flats with associated cycle and refuse storage.)
Granted Full applications New dwelling Extension +2 7 docs
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