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Planning application

Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

Granted Windsor and Maidenhead 20/00029/FULL Full

Works: Extension Windows or glazing Small 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

Single storey rear extension with glazed link to the main dwelling

As published by the council, reference 20/00029/FULL

Application record

Reference
20/00029/FULL
Type
Full
Status
Decided
Decision
Granted As published: Application Permitted
Received
8 Jan 2020
Validated
10 Jan 2020
Decided
25 Feb 2020
Ward
Bisham And Cookham
Parish
Cookham Parish
Decision by
Delegated
Postcode
SL6 9AD

Site history

Applications at this address on the Windsor and Maidenhead register

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  • 22/01786/FULL Withdrawn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  • 22/01787/LBC Withdrawn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  • 21/00759/LBC Withdrawn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
  • 20/02498/CONDIT Granted

    Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

    Details required by condition 2 (drawings and methodology) of listed building consent 20/00030/LBC for consent for a single storey rear extension with glazed link to the main dwelling.

    Decided 18 Nov 2020 Conditions
  • 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

Timeline

Dates from the published record

  1. 8 Jan 2020

    Received by Windsor and Maidenhead

  2. 10 Jan 2020

    Validated

    Checked as complete and ready for consideration.

  3. 25 Feb 2020

    Decision issued: Application Permitted

  4. 12 Oct 2026

    Added to PlanIndex

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.

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Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 25 February 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.

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

  • Cromwell Cottage Alleyns Lane Cookham Maidenhead SL6 9AD

    20/02498/CONDIT Submitted 23 Sep 2020 50 yards away

    Details required by condition 2 (drawings and methodology) of listed building consent 20/00030/LBC for consent for a single storey rear extension with glazed link to the main dwelling.

    Granted Conditions Extension Windows or glazing 6 docs
    Small domestic

  • 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

    20/02313/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

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