14-16 Treport Street SW18 2BP
Approved on 20 February 2026
Council decision: Approve with Conditions CIL LiablePlanning committee
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
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.
- Received
- 11 November 2025
- Decision level
- Planning committee
- Council
- London Borough of Wandsworth
- Ward
- Wandle
- ReceivedReceived11 Nov
- ValidatedValidated20 Nov
- Consult.Consultation3 Feb
- TargetTarget Date
- DecidedDecided20 Feb
Decided in 92 days (council typically 56)
About this application
This is a full planning application for an extension at 14-16 Treport Street SW18 2BP. Wandsworth has handled 3,005 applications of this type. This one was decided in 101 days, 6 weeks longer than Wandsworth's typical decision time. There has been 1 other application at this address. In the past year there have been 54 applications across Wandle. We hold 2,266 applications in total for the SW18 postcode area.
91% of full applications at London Borough of Wandsworth were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- SW18 2BP
- Application type
- Application for Full Permission
- Development type
- C3 - Dwellings
- Scale / size
- Small
Planning application dates
- Date validated
- 20 November 2025
- Consultation expiry
- 3 February 2026
- Consultation start
- 20 November 2025
- Consultation end
- 3 February 2026
- Last date for comments
- 3 February 2026
- Committee meeting
- 19 February 2026
- Application expires
- 12 January 2026
- Permission expires
- 20 February 2029
Planning decision
- Statutory period
- 53 days
Additional information
- Documents
- 12
Site constraints
Designations that overlap or adjoin the site outline.
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
2 other applications at this property, newest first.
Source: Wandsworth
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering2.6 mi
- Bello Electrics LTDVerifiedElectrician4.1 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing4.5 mi
- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman5.5 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.