Brendon Station Road Cookham Maidenhead SL6 9BU Data via plota.co.uk
Proposal
Certificate of lawfulness to determine whether the proposed erection of a hip to gable extension, new rear dormer and 2 No. front rooflights is lawful. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 20 Nov 2026, from Windsor and Maidenhead's recent extensions.
Documents 4
Statements & assessments 1
Application forms 1
Consultation & comments 1
Other documents 1
Site constraints 4
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.
Sales history 3
Last sold for £440,000 in December 2007. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
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 9BU
- Received
- 21 Sept 2026
- Validated
- 28 Sept 2026
- Ward
- Bisham And Cookham
- Parish
- Cookham Parish
- Case officer
- Show
- Target decision
- 22 Nov 2026
- Applicant
- Show
- Agent
- Heighway Associates
Decision outlook
Day 11 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-15209536
- Planning Portal ref
- PP-15209536
- Statutory expiry
- 22 Nov 2026
- Env. assessment
- No
Historical activity at this location
25 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.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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Brendon Station Road Cookham Maidenhead SL6 9BU
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