Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

This site has had 11 applications since 2020: 8 approved, 0 refused.

• 25/02892/TCA Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  T001 Sycamore - remove basal growth. T002 Ash - fell. T005 Leyland cypress - remove broken branches. T006 Norway Maple - remove section on south side and remove weaker of crossing / rubbing branches.

  Decided 22 Dec 2025 Trees
• 25/02716/TCA Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  (T1) Holly - Reduce height by 2m and shape round, leaving a final hight of 6m and spread of 5m. (T2) Lawson Cypress - Fell. (T3) Unknown - Fell.

  Decided 20 Nov 2025 Trees
• 22/01786/FULL Withdrawn

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Single storey rear extension with glazed link to the main dwelling and covered area on the South East elevation.

  Decided 15 Sep 2022 Full applications
• 22/01787/LBC Withdrawn

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Consent for a single storey rear extension with glazed link to the main dwelling and covered area on the South East elevation.

  Decided 15 Sep 2022 Heritage and listed buildings
• 21/02276/TCA Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  T1 - Horse Chestnut - cut back from summer house, T2 - Lawson Cypress - reduce height by 3 meters, T5 - Sycamore - fell. T6 - Species unknown - fell, T7 - Ash - fell, T8 - Tulip tree - pollard to a height of 4m.

  Decided 1 Sep 2021 Trees
• 21/00759/LBC Withdrawn

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Consent for detached garage with workshop/storage above and extension to drive following demolition of existing garage.

  Decided 27 May 2021 Heritage and listed buildings
• 20/02313/CPD Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Certificate of lawfulness to determine whether the provision of a mobile home (not operational development) within the garden of the residential property for use as additional accommodation by one household (not a material change of use) is lawful.

  Decided 2 Nov 2020 Lawful development
• 20/01133/TCA Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  (T1) Lawson's Cypress - fell; (T20) Horse Chestnut - cut back north east side by 3 -4 meters where it encroaches in to the crown of Beech tree to leave 10m; (T23) Lawson's Cypress - crown reduce by 10-11m to leave a height of 4m and (T27) Lawson's Cypress - fell.

  Decided 5 Aug 2020 Trees
• 20/00030/LBC Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Consent for a single storey rear extension with glazed link to the main dwelling

  Decided 25 Feb 2020 Heritage and listed buildings
• 20/00029/FULL Granted

  Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  Single storey rear extension with glazed link to the main dwelling

  Decided 25 Feb 2020 Full applications

1. 23 Sep 2020

   Received by Windsor and Maidenhead

2. 18 Nov 2020

   Decision issued: Approve Discharge of Condition

3. 12 Sep 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 18 November 2020, 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.

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.

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  20/00030/LBC Submitted 8 Jan 2020 50 yards away

  Consent for a single storey rear extension with glazed link to the main dwelling

  Granted Heritage and listed buildings Extension Windows or glazing 13 docs
  Small domestic

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  20/00029/FULL Submitted 8 Jan 2020 50 yards away

  Single storey rear extension with glazed link to the main dwelling

  Granted Full applications Extension Windows or glazing 23 docs
  Small domestic

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  20/02313/CPD Submitted 7 Sep 2020 50 yards away

  Certificate of lawfulness to determine whether the provision of a mobile home (not operational development) within the garden of the residential property for use as additional accommodation by one household (not a material change of use) is lawful.

  Granted Lawful development 22 docs

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  22/01786/FULL Submitted 4 Jul 2022 50 yards away

  Single storey rear extension with glazed link to the main dwelling and covered area on the South East elevation.

  Withdrawn Full applications Extension Windows or glazing 17 docs
  Small domestic

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  21/00759/LBC Submitted 11 Mar 2021 50 yards away

  Consent for detached garage with workshop/storage above and extension to drive following demolition of existing garage.

  Withdrawn Heritage and listed buildings Extension Demolition 12 docs

• Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

  22/01787/LBC Submitted 1 Jul 2022 50 yards away

  Consent for a single storey rear extension with glazed link to the main dwelling and covered area on the South East elevation.

  Withdrawn Heritage and listed buildings Extension Windows or glazing 16 docs
  Small domestic

• 26/02463/CONDIT Awaiting decision

  Land Adjacent To 4 Block D Cavalry Crescent Windsor

  Details required by Condition 2 (Contaminated Land) of planning permission 23/01817/FULL for 2no. three bedroom dwellings with associated parking and landscaping following the demolition of the existing garage block.

  Received 8 Oct, published by the council 12 Oct 2026 Conditions
• 26/02232/CONDIT Granted

  Riverside Gibraltar Lane Cookham Maidenhead SL6 9TR

  Details required by Condition 3 (Bat Licence) of planning permission 23/03099/FULL for the enlargement of existing lower ground floor, two storey front extension with front gable, single storey rear extension with balustrade, 2no. proposed rear dormers, , 3no. chimneys, raised terrace with balustrade, steps and conversion of existing garage to an annex ancillary to main dwelling with new roof, alterations to fenestration and external finishes, replacement garage, new EV charger, hardstanding, landscaping, retaining wall and boundary treatment to front, following demolition of existing elements.

  Received 9 Sep, published by the council 12 Sep 2026 Conditions
• 26/02217/CONDIT Granted

  Land South of Kimbers Lane Maidenhead

  Details required by Condition 25 (Bat Licence confirmation) of planning permission 24/02786/FULL for a Full planning application for 225 dwellings together with access, landscaping, open space, parking and associated infrastructure.

  Received 8 Sep, published by the council 12 Sep 2026 Conditions
• 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.

  Received 8 Sep, published by the council 12 Sep 2026 Conditions
• 26/02455/CONDIT Awaiting decision

  Bisham Abbey Bisham Village Marlow Road Bisham Marlow SL7 1RR

  Details required by Condition 2 (Ecology) of listed building consent 26/01697/LBC for roof repairs including renewal of the lead coverings to Roofs O1, O2 and O3, replacement of the modern Roof M with a new lead roof, localised repairs to other lead and felt roofs, and replacement of defective clay roof tiles. Localised repairs to masonry, windows, joinery, rainwater goods and soil pipes. Replacement of the external fire escape stair and installation of new roof access hatches and permanent mansafe systems to facilitate future inspection and maintenance.

  Received 7 Oct, published by the council 12 Oct 2026 Conditions