11 Water Lane Twickenham TW1 3NP
Approved on 14 November 2025
Council decision: Granted PermissionDelegated (officer decision)
Proposal
Two rear dormer roof extensions, two conservation rooflights to front roof slope, alterations to front and rear fenestrations, erection of fence, creation of rear terrace, internal alterations and hard and soft landscaping.
- Received
- 5 September 2025
- Decision level
- Delegated (officer decision)
- Ward
- Twickenham Riverside Ward [TRW]
- ReceivedReceived5 Sep
- ValidatedValidated18 Sep
- Consult.Consultation17 Oct
- TargetTarget Date13 Nov
- DecidedDecided14 Nov
Decided in 57 days (council typically 49)
About this application
This is a full planning application for a dormer extension at 11 Water Lane Twickenham TW1 3NP. Richmond has handled 4,063 applications of this type. This one was decided in 70 days, 3 weeks longer than Richmond's typical decision time. The site is in the Twickenham Riverside conservation area, with 17 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 233 applications across Twickenham Riverside Ward [TRW]. We hold 1,488 applications in total for the TW1 postcode area.
83% of full applications at London Borough of Richmond upon Thames were approved. Across all application types, the council typically decides in about 7 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
- TW1 3NP
- Application type
- Householder Application
- Scale / size
- Small
- District
- DC Strategic Team
Planning application dates
- Date validated
- 18 September 2025
- Consultation expiry
- 17 October 2025
- Consultation end
- 17 October 2025
- Target decision date
- 13 November 2025
- Application expires
- 9 October 2025
- Permission expires
- 13 November 2028
Planning decision
- Statutory period
- 56 days
Publicity
- First advertised
- 26 September 2025
- Site notice start
- 26 September 2025
Additional information
- Planning Portal ID
- PP-14175467
- UPRN
- 10002263958
- Documents
- 23
Site constraints
Designations at the address point. Ones next to the site may also apply.
- Flood zone 2: Medium probability (rivers and sea)
- Conservation area: Twickenham Riverside
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 (21)
flood storage 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.
Source: Richmond
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 & RefurbishmentsPlastering8.5 mi
- Bello Electrics LTDVerifiedElectrician8.7 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing9.1 mi
- Lambert Heating & Renewables LtdVerified9.4 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.