15 Castle Avenue Datchet Slough SL3 9BA
Proposal
Certificate of lawfulness to determine whether the proposed single storey rear extension is lawful.
- Received
- 9 September 2026
- Public comments
- 0 · last counted 5 October 2026
- ReceivedSubmitted9 Sep
- ValidatedValidated9 Sep
- Consult.Consultation
- TargetTarget Date
- DecidedDecided
This is a planning application for a single storey rear extension at 15 Castle Avenue Datchet Slough SL3 9BA. Windsor has handled 4,812 applications of this type and approves 80% of them, typically deciding them in 56 days. It was submitted on 9 September 2026 and is still awaiting a decision. The site is in a conservation area. There are no previous applications recorded at this address. We hold 2,592 applications in total for the SL3 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Windsor
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Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 3: High probability (rivers and sea)
Not published by this council, so not checked: conservation areas, Article 4 directions and tree preservation orders. Ask the council if these matter.
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 2026-10-09. 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.
Before the decision
You may need a flood risk assessment. Drainage & flood risk consultants near this site
The site is in flood zone 3 (Environment Agency).
- 10.8 miTwickenham
- 11.0 miTeddingtonRTPI
- 11.8 miWoking
Nearest first, within 25 miles of the site. Every firm is listed free.
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