47 Westwood Green Cookham Maidenhead SL6 9DE Data via plota.co.uk
Proposal
Certificate of lawfulness to determine whether the proposed conversion of integral garage to form habitable room is lawful. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 10 Nov 2026, from Windsor and Maidenhead's recent extensions.
Documents 2
Application forms 1
Other documents 1
Site constraints 3
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Building
From the energy performance certificate lodged in August 2018, the latest held for this property. The building may have changed since. View the certificate
Every application in Windsor and Maidenhead - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Windsor and Maidenhead
- Application type
- Cert of Lawfulness of Proposed Dev
- Postcode
- SL6 9DE
- Received
- 18 Sept 2026
- Validated
- 18 Sept 2026
- Ward
- Bisham And Cookham
- Parish
- Cookham Parish
- Target decision
- 12 Nov 2026
- Applicant
- Show
- Agent
- Show
Decision outlook
Day 21 of the 56-day target. Windsor and Maidenhead usually decides extensions by day 53.
Plota live figures for extensions decided by Windsor and Maidenhead in the last twelve months, from validation. Windsor and Maidenhead decision record →
Consultation & key dates
- Alt. reference
- PP-15224906
- Planning Portal ref
- PP-15224906
- Statutory expiry
- 12 Nov 2026
- Env. assessment
- No
Historical activity at this location
13 nearby applications on record - archival context, not part of the live application.
Nearby activity
Windsor and Maidenhead is faster than most councils at deciding householder applications, ranking #82 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Windsor and Maidenhead is also one of the strictest councils - it refuses more householder applications than almost any other, with only 74% approved vs 90% nationally.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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47 Westwood Green Cookham Maidenhead SL6 9DE
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