74 Illingworth Windsor SL4 4UP Data via plota.co.uk
Proposal
First floor rear extension with 1no. bay window, raising of the ridge and 3no. dormers to facilitate a loft conversion and alterations to fenestration. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 7 Dec 2026, from Windsor and Maidenhead's recent extensions.
Documents 8
Statements & assessments 3
Plans & drawings 1
Application forms 2
Consultation & comments 1
Other documents 1
Site constraints 1
Checked on 17 October 2026. 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 £975,000 in December 2016. 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 July 2016, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Windsor and Maidenhead
- Application type
- Full
- Postcode
- SL4 4UP
- Received
- 8 Oct 2026
- Validated
- 15 Oct 2026
- Ward
- Clewer And Dedworth East
- Parish
- Windsor Unparished
- Case officer
- Show
- Target decision
- 9 Dec 2026
- Applicant
- Show
- Agent
- Show
Decision outlook
Day 13 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-15247086
- Planning Portal ref
- PP-15247086
- Comments by
- 12 Nov 2026
- Statutory expiry
- 9 Dec 2026
- Env. assessment
- No
Historical activity at this location
26 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.
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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74 Illingworth Windsor SL4 4UP
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Comments are open until 12 Nov 2026