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26 Lawn Close Datchet Slough SL3 9JZ

26/01609/CPDCert of Lawfulness of Proposed DevAwaiting decision
Outline / PiP

Proposal

Certificate of lawfulness to determine whether the proposed hip to gable and 1no. rear dormer following the removal of the existing chimney is lawful.

Received
1 July 2026
Decision due
25 August 2026
Ward
Datchet Horton And Wraysbury
  1. Received1 Jul
  2. Validated1 Jul
  3. Consult.
  4. Target25 Aug
  5. Decided

Have your say

Comment on the council's siteDocuments (13)

About this application

This is an outline application for a dormer extension at 26 Lawn Close Datchet Slough SL3 9JZ. Windsor has handled 644 applications of this type. It has been with the council since 1 July 2026 and is still awaiting a decision. The site is in a conservation area. There have been 2 other applications at this address. In the past year there have been 75 applications across Datchet Horton And Wraysbury. We hold 2,640 applications in total for the SL3 postcode area.

67% of outline applications at Royal Borough of Windsor and Maidenhead 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.See what's approved near your address

Application details

Postcode
SL3 9JZ
Application type
Cert of Lawfulness of Proposed Dev
Scale / size
Small
Parish
Datchet Parish

Planning application dates

Date validated
1 July 2026

Applicant and agent

Agent address
124 City Road London EC1V 2NX

Planning decision

Statutory period
55 days

Additional information

Planning Portal ID
PP-15050997
Documents
13

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Flood zone 2: Medium 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 2026-11-03. 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: Windsor

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For applicants and trades

Before the decision

You may need a flood risk assessment. Drainage & flood risk consultants near this site

The site is in flood zone 2 (Environment Agency).

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