352 St Leonards Road Windsor SL4 3DX Data via plota.co.uk
Proposal
Certificate of lawfulness to determine whether the proposed enlargement and conversion of the existing detached outbuilding incidental to the main dwelling is lawful. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 13 Dec 2026, from Windsor and Maidenhead's recent extensions.
Documents 3
Statements & assessments 1
Application forms 1
Other documents 1
Site constraints 5
Checked on 28 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England 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.
Every application in Windsor and Maidenhead - and every UK council - as a live feed, an API, or a bulk CSV export.
Other new applications on this street
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Nearby new applications
251 St Leonards Road Windsor SL4 3DR
Single storey side/rear extension following demolition of existing conservatory.
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Important details
- Council
- Windsor and Maidenhead
- Application type
- Cert of Lawfulness of Proposed Dev
- Postcode
- SL4 3DX
- Received
- 21 Oct 2026
- Validated
- 21 Oct 2026
- Ward
- Clewer East
- Parish
- Windsor Unparished
- Target decision
- 15 Dec 2026
- Applicant
- Show
- Agent
- Show
Decision outlook
Day 8 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-15312644
- Planning Portal ref
- PP-15312644
- Statutory expiry
- 15 Dec 2026
- Env. assessment
- No
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.
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352 St Leonards Road Windsor SL4 3DX
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