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Planning application

Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

Granted Windsor and Maidenhead 26/00579/CONDIT Discharge of Condition

Works: New dwelling Domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Details required by Condition 6 (BNG Calculations) and Condition 7 (Biodiversity Enhancements) of planning permission 24/00494/FULL for a replacement detached dwelling with solar panels.

As published by the council, reference 26/00579/CONDIT

Application record

Reference
26/00579/CONDIT
Type
Discharge of Condition
Status
Decided
Decision
Granted As published: Approve Discharge of Condition
Received
2 Mar 2026
Validated
3 Mar 2026
Decided
1 Apr 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Decision by
Delegated
Postcode
SL6 9AE

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 10 applications since 2022: 4 approved, 2 refused.

  • 26/02161/NMA Awaiting decision

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Non material amendments to planning permission 24/01755/FULL for alterations to the roof, roof overhang, fenestration and external finish.

    Submitted 2 Sep 2026 Amendments
  • 26/01326/NMA Refused

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Non material amendments to planning permission 24/00494/FULL for changes to ground floor roof overhangs to be supported by beams and posts or with additional posts, alterations to fenestration on ground and first floor and additional windows to gable ends in roof-space, and insertion of rooflight in flat-top roof. Alterations to chimneys and 3no additional flues.

    Decided 23 Jun 2026 Amendments
  • 24/02271/VAR Withdrawn

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Variation (under Section 73) of Condition 13 to substitute those plans approved under 24/00494/FULL for the Replacement detached dwelling with solar panels with amended plans.

    Decided 5 Nov 2024 Amendments
  • 23/02120/TPO Granted

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    As per submitted schedule, but with the following amendments: no works to T2 Oak, T29 Sycamore, T31 Sycamore and T32 Sycamore, and no works to T3 Oak other than pruning to give 2m clearance to the roof of the existing wooden garage and up to 5.2m clearance over the shared driveway east of the wooden access gate. (012/1984/TPO)

    Decided 17 Nov 2023 Trees
  • 23/02029/PDXL Granted

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.00m.

    Decided 18 Sep 2023 Prior approval
  • 23/02004/CPD Withdrawn

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Certificate of lawfulness to determine whether the proposed single storey side extension, loft conversion with 2 no. rooflights, rear dormer and 3 no. outbuildings following demolition of existing garage is lawful.

    Decided 30 Oct 2023 Lawful development
  • 23/01793/CPD Refused

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Certificate of lawfulness to determine whether the proposed single storey side extension, 1no. rear dormer, 2no. detached outbuildings and a replacement detached triple garage with office ancillary to the main dwelling is lawful.

    Decided 3 Aug 2023 Lawful development
  • 23/01789/PDXL Withdrawn

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.00m.

    Decided 1 Sep 2023 Prior approval
  • 22/03414/TPO Granted

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    T3 - Beech - Crown reduction by 9m leaving a final height of 14m (012/1984/TPO).

    Decided 29 Mar 2023 Trees

Timeline

Dates from the published record

  1. 2 Mar 2026

    Received by Windsor and Maidenhead

  2. 3 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 1 Apr 2026

    Decision issued: Approve Discharge of Condition

  4. 25 Jul 2026

    Added to PlanIndex

Documents

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

7 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 grant of permission means

Windsor and Maidenhead granted permission on 1 April 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 condition discharge and variation applications

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    26/01326/NMA Submitted 28 May 2026 0m away

    Non material amendments to planning permission 24/00494/FULL for changes to ground floor roof overhangs to be supported by beams and posts or with additional posts, alterations to fenestration on ground and first floor and additional windows to gable ends in roof-space, and insertion of rooflight in flat-top roof. Alterations to chimneys and 3no additional flues.

    Refused Amendments Loft or dormer Roofing +1 10 docs

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    23/01789/PDXL Submitted 21 Jul 2023 2m away

    Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.00m.

    Withdrawn Prior approval Extension 10 docs
    Small domestic

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    23/02029/PDXL Submitted 15 Aug 2023 2m away

    Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.00m.

    Granted Prior approval Extension 12 docs
    Small domestic

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    26/02161/NMA Submitted 2 Sep 2026 2m away

    71% historically approved · decision due ~28 Oct

    Non material amendments to planning permission 24/01755/FULL for alterations to the roof, roof overhang, fenestration and external finish.

    Awaiting decision Amendments Windows or glazing 5 docs

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    23/02004/CPD Submitted 15 Aug 2023 2m away

    Certificate of lawfulness to determine whether the proposed single storey side extension, loft conversion with 2 no. rooflights, rear dormer and 3 no. outbuildings following demolition of existing garage is lawful.

    Withdrawn Lawful development Extension Loft or dormer +1 13 docs
    Small domestic

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    24/02271/VAR Submitted 19 Sep 2024 3m away

    Variation (under Section 73) of Condition 13 to substitute those plans approved under 24/00494/FULL for the Replacement detached dwelling with solar panels with amended plans.

    Withdrawn Amendments New dwelling 20 docs
    Domestic

In Windsor and Maidenhead

  • 26/01561/CONDIT Withdrawn

    Magnet Leisure Centre And Magnet Leisure Complex Car Park Holmanleaze Maidenhead SL6 8AW

    Details required by Condition 25 (Tree planting strategy) of planning permission 25/00655/VAR for a Variation (under Section 73) of planning permission 21/00502/FULL to vary the wording of Condition 2 (Approved plans), 3 (Phasing plan), 4 (External materials), 5 (Demolition of footbridge), 6 (CEMP), 7 (Dust management plan), 8 (Demolition bat supervision), 9 (Lighting scheme), 10 (Biodiversity enhancements), 11 (Tree replacement), 12 (Piling), 13 (SUDS), 14 (Sub station contamination), 15 (Land contamination verification), 16 (Provision of cycle parking), 17 (Parking management plan), 18 (Travel plan), 22 (Public realm maintenance plan), 23 (Access control system), 26 (Acessible housing) and 27 (Number of homes).

    Received 25 Jun, published by the council 25 Jul 2026 Conditions
  • 26/01621/CONDIT Granted

    Braywick House 14 Windsor Road Maidenhead SL6 1DN

    Details required by Condition 12 (Parking and Turning Layout); Condition 13 (Car Park Management Plan); Condition 16 (Pedestrian Access) and Condition 19 (Access) of planning permission 24/02036/FULL for a change of use of Braywick House from Offices (Use Class E) to a SEND School (Use Class F1), minor external alterations including the reconfiguration of parking spaces, two replacement escape stairs and new boundary treatment.

    Received 2 Jul, published by the council 25 Jul 2026 Conditions
  • 26/01090/LEG Granted

    Land South And East of Badgers Wood Kimbers Lane Maidenhead

    Discharge of planning obligation Schedule 4, Paragraph 7 in regards to planning permission 23/00511/FULL

    Received 1 May, published by the council 25 Jul 2026 Conditions
  • 26/01935/CONDIT Granted

    Land To The Rear of 45 To 63 London Road Datchet Slough SL3 9JY

    Details required by Condition 16 (EV Charging) of planning permission 25/01583/VAR for the Variation (under Section 73) of planning permission 22/02737/FULL to vary the wording of Condition 5 (Flood Risk Assessment And Drainage Strategy).

    Received 5 Aug, published by the council 11 Aug 2026 Conditions
  • 26/02260/CONDIT Awaiting decision

    St Marys Chapel Eton College Slough Road Eton Windsor

    Details required by Condition 2 (Fixings) and 3 (Type of Stone) of listed building consent 26/00658/LBC for Consent for the replacement of the stone handrail.

    Received 14 Sep, published by the council 18 Sep 2026 Conditions