Skip to content
PlanIndex Get alerts
Menu

Planning application

Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

Withdrawn Windsor and Maidenhead 23/01789/PDXL Permitted Development Extended

Works: Extension Small domestic

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

Withdrawn before a decision, so it carries no planning weight. A revised scheme can be submitted at any time.

Proposal

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

As published by the council, reference 23/01789/PDXL

Application record

Reference
23/01789/PDXL
Type
Permitted Development Extended
Status
Decided
Decision
Withdrawn As published: Application Withdrawn
Received
21 Jul 2023
Validated
21 Jul 2023
Decided
1 Sep 2023
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
  • 26/00579/CONDIT Granted

    Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    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.

    Decided 1 Apr 2026 Conditions
  • 24/02271/VAR Withdrawn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
  • 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. 21 Jul 2023

    Received by Windsor and Maidenhead

  2. 1 Sep 2023

    Decision issued: Application Withdrawn

  3. 12 Sep 2026

    Added to PlanIndex

Documents

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

10 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 withdrawal means

The applicant withdrew this application before Windsor and Maidenhead decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

About prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    23/02029/PDXL Submitted 15 Aug 2023 0m 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 0m 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

    24/02271/VAR Submitted 19 Sep 2024 1m 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

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    23/01793/CPD Submitted 21 Jul 2023 1m away

    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.

    Refused Lawful development Extension Loft or dormer 14 docs
    Small domestic

  • Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE

    26/01326/NMA Submitted 28 May 2026 2m 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

    26/00579/CONDIT Submitted 2 Mar 2026 2m away

    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.

    Granted Conditions New dwelling 7 docs
    Domestic

In Windsor and Maidenhead

  • 26/01684/PDXL Refused

    9 Duncroft Windsor SL4 4HH

    Single storey rear extension no greater than 6.00m in depth, 3.20m high with an eaves height of 2.90m.

    Received 10 Jul, published by the council 11 Aug 2026 Prior approval
  • 26/01861/PDXL Granted

    6 Hendons Way Holyport Maidenhead SL6 2LF

    Single storey rear extension no greater than 6.00m in depth, 2.78m high with an eaves height of 2,70m.

    Received 29 Jul, published by the council 4 Aug 2026 Prior approval
  • 26/01912/PDXL Granted

    Fourwinds 2 Green Lane Ascot SL5 7QJ

    Single storey rear extension no greater than 7.46m in depth, 3.20m high with an eaves height of 2.45m.

    Received 3 Aug, published by the council 11 Aug 2026 Prior approval
  • 26/01789/PDXL Granted

    6 The Dell Maidenhead SL6 3NS

    Single storey rear extension no greater than 3.76m in depth, 2.90m high with an eaves height of 2.90m.

    Received 22 Jul, published by the council 31 Jul 2026 Prior approval
  • 26/01831/PDXL Granted

    1 Bell View Windsor SL4 4ET

    Single storey rear extension no greater than 4.30m in depth, 2.80m high with an eaves height of 2.50m.

    Received 27 Jul, published by the council 31 Jul 2026 Prior approval