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Planning application

Chanonry St Leonards Hill Windsor SL4 4AT

Refused Windsor and Maidenhead 25/02471/FULL Full

Works: Extension Loft or dormer Roofing Windows or glazing

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

New front entrance canopy, part single, part two storey front/side extension with enlargement of the existing garage and habitable accommodation within the roofspace, two storey rear extension, new roof, raising of the eaves and ridge, loft conversion with 1no. front dormer and alterations to the external finish and fenestration.

As published by the council, reference 25/02471/FULL

Application record

Reference
25/02471/FULL
Type
Full
Status
Decided
Decision
Refused As published: Refuse
Received
22 Sep 2025
Validated
22 Sep 2025
Decided
17 Nov 2025
Ward
Clewer And Dedworth East
Parish
Windsor Unparished
Decision by
Delegated
Postcode
SL4 4AT

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 3 applications since 2022: 0 approved, 2 refused.

  • 23/01834/FULL Withdrawn

    Chanonry St Leonards Hill Windsor SL4 4AT

    New front canopy, part single part two storey part first floor wrap around link extension (rear/side/front), new roof, raising of the ridge, loft conversion with 3no. front dormers, 1no. rear Juliet balcony and alterations to external finishes and fenestration.

    Decided 17 Oct 2023 Full applications
  • 22/00923/TPO Refused

    Chanonry St Leonards Hill Windsor SL4 4AT

    Willow tree - fell, Conifer - fell (007/1959/TPO)

    Decided 26 May 2022 Trees

Timeline

Dates from the published record

  1. 22 Sep 2025

    Received by Windsor and Maidenhead

  2. 17 Nov 2025

    Decision issued: Refuse

  3. 11 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

13 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this refusal means

Windsor and Maidenhead refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Chanonry St Leonards Hill Windsor SL4 4AT

    23/01834/FULL Submitted 28 Jul 2023 50 yards away

    New front canopy, part single part two storey part first floor wrap around link extension (rear/side/front), new roof, raising of the ridge, loft conversion with 3no. front dormers, 1no. rear Juliet balcony and alterations to external finishes and fenestration.

    Withdrawn Full applications Extension Loft or dormer +2 11 docs

  • Chanonry St Leonards Hill Windsor SL4 4AT

    22/00923/TPO Submitted 4 Apr 2022 50 yards away

    Willow tree - fell, Conifer - fell (007/1959/TPO)

    Refused Trees 7 docs

  • The Corner House St Leonards Hill Windsor SL4 4AL

    22/03008/TPO Submitted 10 Nov 2022 50 yards away

    (T1 and T2) - Ash - Fell. (002/1960/TPO)

    Granted Trees 5 docs

  • Brancepeth St Leonards Hill Windsor SL4 4AT

    23/02287/TPO Submitted 18 Sep 2023 50 yards away

    (T1) Eucalyptus - to crown reduce one eucalyptus tree to previous reduction points (approx. 4-5m) (007/1959/TPO).

    Granted Trees 6 docs

  • Valley View And Brancepeth And The Old Ruins And Chanonry St Leonards Hill Windsor

    21/02382/TPO Submitted 2 Aug 2021 50 yards away

    Front gardens - (T2) Leyandi tree - fell; (T3) Maple - pollard back to previous points; (T4) Eucalyptus - reduce the canopy by 7m to leave a height and spread of 8m. Rear gardens - (T1) Ash - fell; (T2) Cherry - fell; (T3) Willow - cut back overhanging branches, (T4) Goat Willow - fell; (T5) Thuja Hedge - reduce to 1m below trim line; (T6) Sycamore - raise crown to 5m and remove deadwood; (T7) Ash - fell; (T8) Sycamore - cut back overhanging branches; (T9) Ash - remove dangerous limbs overhanging neighbouring properties; (T10) - remove overhanging branches. (TPO 7 of 1959).

    Granted Trees 8 docs

  • Blandford St Leonards Hill Windsor SL4 4AT

    25/03361/TPO Submitted 18 Dec 2025 50 yards away

    TG1 - Cypress - fell (007/1959/TPO).

    Granted Trees 10 docs

In Windsor and Maidenhead

  • 26/02029/FULL Granted

    5 Kimber Close Windsor SL4 4BJ

    Single storey rear extension.

    Received 17 Aug, published by the council 27 Aug 2026 Full applications
  • 26/01955/FULL Granted

    2 Holmlea Road Datchet Slough SL3 9HQ

    Change of use from a dwellinghouse (Use Class C3) to a children's home (Use Class C2) for up to three children, together with conversion of the garage to an office with an en-suite facilities and alterations to fenestration.

    Received 7 Aug, published by the council 27 Aug 2026 Full applications
  • 26/01121/FULL Granted

    Zain House 15 Wilton Crescent Windsor SL4 4YJ

    Single storey side/front extension, first floor extension over existing side element with 1no. Juliet balcony and 1no. Juliet balcony to existing rear elevation.

    Received 6 May, published by the council 11 Aug 2026 Full applications
  • 26/01977/FULL Granted

    9 St Marks Place Windsor SL4 3BG

    Garage conversion and alterations to fenestration.

    Received 11 Aug, published by the council 24 Aug 2026 Full applications
  • 26/01804/FULL Granted

    16 Devereux Road Windsor SL4 1JJ

    Installation of air conditioning compressor unit to the first floor side elevation.

    Received 23 Jul, published by the council 24 Aug 2026 Full applications