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Planning application

4 Horseguards Drive Maidenhead SL6 1XL

Granted Windsor and Maidenhead 25/02717/CPD Cert of Lawfulness of Proposed Dev

Works: Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of lawfulness to determine whether the proposed garage conversion and alterations to fenestration is lawful.

As published by the council, reference 25/02717/CPD

Application record

Reference
25/02717/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Permitted Development
Received
14 Oct 2025
Validated
14 Oct 2025
Decided
21 Nov 2025
Ward
St Marys
Parish
Maidenhead Unparished
Decision by
Delegated
Postcode
SL6 1XL

Timeline

Dates from the published record

  1. 14 Oct 2025

    Received by Windsor and Maidenhead

  2. 21 Nov 2025

    Decision issued: Permitted Development

  3. 11 Aug 2026

    Added to PlanIndex

Documents

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

5 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.

Trade members open them from here.

Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 21 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 20 Horseguards Drive Maidenhead SL6 1XL

    21/02657/CPD Submitted 31 Aug 2021 33m away

    Certificate of lawfulness to determine whether the erection of two rear dormers with Juliet balconies and 5 No. front rooflights to facilitate a loft conversion and a garage conversion to habitable room is lawful

    Granted Lawful development Loft or dormer 9 docs

  • 7 Horseguards Drive Maidenhead SL6 1XL

    22/01290/FULL Submitted 13 May 2022 45m away

    Two storey rear extension to include x2 Juliette balcony, raised decking, new steps and alterations to fenestration on first floor level.

    Granted Full applications Extension Windows or glazing 9 docs

  • The Bridge Clinic Oldfield Lodge Bridge Road Maidenhead SL6 8DG

    25/02931/TCA Submitted 5 Nov 2025 61m away

    T10 - Sycamore - Remove basal growth T20 - Horse Chestnut - Reduce extended limb on to north by a maximum of 2m T29 - Sycamore- Remove basal growth T33 and T34 - Portuguese Laure -l Trim as necessary T35 - London Plane - Crown Lift to a height of 3.5-4m over ground level and tip reduce branches on southern side to provide a clearance of 2m over the archway and 2-3m from Oldfield lodge, remove any dead and broken branches T50 - Contorted Willow - Fell T71 - Smoke bush - Fell T55 - Poplar aurora - Fell T155 - Sweet Gum - Prune away from building T159 - Goat Willow - Fell T662 - Ash - Fell T191 - Goat Willow - Fell

    Granted Trees 7 docs

  • The Bridge Clinic Oldfield Lodge Bridge Road Maidenhead SL6 8DG

    23/00653/TCA Submitted 10 Mar 2023 65m away

    (T6 - Scots Pine) (T7 - Yew) (T23 - Sycamore) (T186 - Sweet Gum) (T40 - Lime) (T662 - Ash) (T49 - Ash) (T664 - Oak) - Please refer to survey.

    Granted Trees 5 docs

  • The Bridge Clinic Oldfield Lodge Bridge Road Maidenhead SL6 8DG

    21/01718/TCA Submitted 2 Jun 2021 65m away

    (T17) Ash - fell to ground level (T24) Lawson Cypress - reduce by 4m in height (T32) Yew - prune away from property by 2m (T35) London Plane - prune to clear archway by 3m (T46) Ash - fell to ground level (T60) Ash - fell to ground level (T191) Great Willow - prune to clear property by 2m (T186) Liquidamber - prune to clear property by 2m.

    Granted Trees 4 docs

  • Oldfield Lodge Bridge Road Maidenhead SL6 8DG

    21/03730/FULL Submitted 23 Dec 2021 76m away

    The provision of additional parking spaces and relocation of the existing bin store.

    Granted Full applications 44 docs

In Windsor and Maidenhead

  • 26/00501/CPU Refused

    143 Cookham Road Maidenhead SL6 7EU

    Certificate of lawfulness to determine whether the proposed use of the dwelling as a small childrens home for up to two children and two carers is lawful.

    25 Feb 2026 Lawful development
  • 26/01763/CPU Refused

    Land At The Junction of Warners Hill And Dean Lane Cookham Maidenhead

    Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful.

    17 Jul 2026 Lawful development
  • 26/01615/CLU Granted

    Riding Court Farm Riding Court Riding Court Road Datchet Slough SL3 9JT

    Certificate of lawfulness to determine whether the existing units 'JKL' (use class B8) used for storage and distribution; unit 'AB' (use class B8) used for hiring, maintaining, and cleaning concrete screed and machinery and 'storage yard 2' (use class B8) used for the storage of scaffolding is lawful.

    1 Jul 2026 Lawful development
  • 26/01581/CLD Granted

    The George Public House The Brewhouse The Green Holyport Road Holyport Maidenhead

    Certificate of lawfulness to determine whether the existing bollard is lawful.

    26 Jun 2026 Lawful development
  • 26/02117/CPD Awaiting decision

    27 Tyrell Gardens Windsor SL4 4DH

    Certificate of lawfulness to determine whether the proposed garage conversion is lawful.

    26 Aug 2026 Lawful development