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Planning application

Southleigh & Willianns High Street Cookham Maidenhead

Granted Windsor and Maidenhead 25/03339/FULL Full

Works: Extension Loft or dormer

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

Proposal

Two storey rear extensions with 1no. Juliet balcony. A loft conversion with 2no. rear rooflights to Southleigh.

As published by the council, reference 25/03339/FULL

Application record

Reference
25/03339/FULL
Type
Full
Status
Decided
Decision
Granted As published: Application Permitted
Received
16 Dec 2025
Validated
16 Dec 2025
Decided
10 Feb 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Decision by
Delegated

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 26/02209/CONDIT Granted

    Southleigh & Willianns High Street Cookham Maidenhead

    Details required by Condition 4 (Roof tiles) and 8 (Biodiversity enhancements) of planning permission 25/03339/FULL for a Two storey rear extensions with 1no. Juliet balcony. A loft conversion with 2no. rear rooflights to Southleigh.

    Decided 7 Oct 2026 Conditions

Timeline

Dates from the published record

  1. 16 Dec 2025

    Received by Windsor and Maidenhead

  2. 10 Feb 2026

    Decision issued: Application Permitted

  3. 11 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/02209/CONDIT Granted

    Southleigh & Willianns High Street Cookham Maidenhead

    Details required by Condition 4 (Roof tiles) and 8 (Biodiversity enhancements) of planning permission 25/03339/FULL for a Two storey rear extensions with 1no. Juliet balcony. A loft conversion with 2no. rear rooflights to Southleigh.

    Decided 7 Oct 2026 Conditions

Documents

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

23 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 10 February 2026, 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 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

  • Southleigh & Willianns High Street Cookham Maidenhead

    26/02209/CONDIT Submitted 8 Sep 2026 50 yards away

    Details required by Condition 4 (Roof tiles) and 8 (Biodiversity enhancements) of planning permission 25/03339/FULL for a Two storey rear extensions with 1no. Juliet balcony. A loft conversion with 2no. rear rooflights to Southleigh.

    Granted Conditions Extension Loft or dormer +1 6 docs

  • Moor Cottage High Street Cookham Maidenhead SL6 9SF

    22/02007/TCA Submitted 21 Jul 2022 50 yards away

    T2 - Beech - tip reduce by 4m in height to leave a final height of 14m, tip reduce the side laterals by 2.5m back to the boundary on the northern side to leave a final spread of 14m, T3 - Ash - reduce in height by 3m to leave a final height of 8m and spread of 2m.

    Granted Trees 7 docs

  • Shelleys High Street Cookham Maidenhead SL6 9SF

    26/00525/CONDIT Submitted 27 Feb 2026 50 yards away

    Details required by Condition 3 (Rooflights) of planning permission 25/01198/FULL for a single storey rear extension with raised terrace and alterations to fenestration.

    Refused Conditions Extension Loft or dormer +1 5 docs
    Small domestic

  • Shelleys High Street Cookham Maidenhead SL6 9SF

    26/00630/CONDIT Submitted 10 Mar 2026 50 yards away

    Details required by Condition 2 (Windows and Doors), 4 (Materials) and 5 (SuDS) of planning permission 25/01198/FULL for a Single storey rear extension with raised terrace and alterations to fenestration

    Refused Conditions Extension Windows or glazing 11 docs
    Small domestic

  • Shelleys High Street Cookham Maidenhead SL6 9SF

    25/02579/CONDIT Submitted 1 Oct 2025 50 yards away

    Details required by Condition 6 (Archaeological work - partial) of planning permission 25/01198/FULL for a Single storey rear extension with raised terrace and alterations to fenestration.

    Granted Conditions Extension Windows or glazing 7 docs
    Small domestic

  • Moor Cottage High Street Cookham Maidenhead SL6 9SF

    21/01077/FULL Submitted 7 Apr 2021 50 yards away

    Change of use from C2 (residential home) to C3 (residential) to create x1 dwelling.

    Granted Full applications 13 docs
    Domestic

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