15 The Avenue Old Windsor Windsor SL4 2RS Data via plota.co.uk
Proposal
Certificate of lawfulness to determine whether the proposed detached outbuilding incidental to the main dwelling is lawful. Data via plota.co.uk
Application progress
Approved on 17 Feb 2026 · Delegated · Last checked 7 Jul 2026
Documents 5
Decision & officer reports 1
Statements & assessments 1
Application forms 1
Site constraints 3
Checked on 6 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.
Sales history 1
Last sold for £455,000 in October 2023. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in April 2023, the latest held for this property, matched to this application by its address. 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
- SL4 2RS
- Received
- 4 Feb 2026
- Validated
- 4 Feb 2026
- Ward
- Old Windsor
- Parish
- Old Windsor Parish
- Case officer
- Show
- Target decision
- 1 Apr 2026
- Decision
- Permitted Development
- Decision date
- 17 Feb 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 13 days from validation, 40 days faster than Windsor and Maidenhead's median of 53 for extensions. Approved, as 75% of extensions here are.
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-14674722
- Planning Portal ref
- PP-14674722
- Statutory expiry
- 1 Apr 2026
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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.
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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15 The Avenue Old Windsor Windsor SL4 2RS
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