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Planning application

Alleyn House Alleyns Lane Cookham Maidenhead SL6 9AD

Granted Windsor and Maidenhead 21/03201/CPD Cert of Lawfulness of Proposed Dev

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

Proposal

Certificate of lawfulness to determine whether the proposed x2 outbuildings are lawful.

As published by the council, reference 21/03201/CPD

Application record

Reference
21/03201/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Permitted Development
Received
28 Oct 2021
Validated
28 Oct 2021
Decided
21 Dec 2021
Ward
Bisham And Cookham
Parish
Cookham Parish
Decision by
Delegated
Postcode
SL6 9AD

Timeline

Dates from the published record

  1. 28 Oct 2021

    Received by Windsor and Maidenhead

  2. 21 Dec 2021

    Decision issued: Permitted Development

  3. 16 Aug 2026

    Added to PlanIndex

Documents

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

9 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.

Trade members open them from here.

Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 21 December 2021, 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Applewood Alleyns Lane Cookham Maidenhead SL6 9AD

    25/02901/TPO Submitted 3 Nov 2025 55m away

    T1 - Oak tree - fell (019/2010/TPO).

    Granted Trees 13 docs

  • Mulberry Lodge Alleyns Lane Cookham Maidenhead SL6 9AD

    22/00164/FULL Submitted 24 Jan 2022 68m away

    Decrease size of x1 garage door, raising of the eves and ridge with x1 front Juliet balcony, x2 side dormers and x1 side gable on NE elevation, x1 side dormer and alteration to existing chimney on SW elevation, x1 front dormers, x2 front gables to NW elevation, x1 rear gable, x1 rear dormer and first floor extension on SE elevation to enlarge existing accommodation in roof space, alterations to external finishes and fenestration.

    Granted Full applications Extension Loft or dormer +1 18 docs

  • Mulberry Lodge Alleyns Lane Cookham Maidenhead SL6 9AD

    21/03157/VAR Submitted 25 Oct 2021 69m away

    Variation (under Section 73a) of planning permission 09/01137/FULL without complying with Condition 2 matching materials to alter the design of the proposal, to include an increase in ridge height of the gable, and a new double gabled dormer.

    Withdrawn Amendments Loft or dormer Roofing 14 docs

  • Hill Grove Farm Bradcutts Lane Cookham Dean Maidenhead SL6 9AA

    22/01806/FULL Submitted 5 Jul 2022 183m away

    New dual pitched roof above the existing single storey element on the South East elevation with accommodation in the roof space and alterations to fenestration and to external finishes/materials, following demolition of the existing single storey element on the South West elevation and part demolition of the existing single storey element on the South East elevation.

    Refused Full applications Demolition Windows or glazing 30 docs
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  • Hill Grove Farm Bradcutts Lane Cookham Dean Maidenhead SL6 9AA

    22/00252/FULL Submitted 2 Feb 2022 183m away

    New pitched roof, extension to the existing habitable roof space with external staircase, 2no. side dormers, new external finish and alterations to fenestration to the detached outbuilding following partial demolition of the single storey elements.

    Refused Full applications Extension Loft or dormer +2 14 docs
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  • Hill Grove Farm Bradcutts Lane Cookham Dean Maidenhead SL6 9AA

    26/01352/CONDIT Submitted 1 Jun 2026 183m away

    Details required by Condition 3 (External Materials) of planning permission 22/01806/FULL (allowed on appeal) for the removal of existing single storey lean-too and reduction of existing garage footprint to provide new dual pitched roof to existing garage link to extend existing accommodation with rooflights. Modify internal configuration, relocate existing staircase and reclad external walls with timber boarding.

    Granted Conditions Loft or dormer 5 docs
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In Windsor and Maidenhead

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    Certificate of lawfulness to determine whether the proposed use of the dwelling as a small childrens home for up to two children and two carers is lawful.

    25 Feb 2026 Lawful development
  • 26/01763/CPU Refused

    Land At The Junction of Warners Hill And Dean Lane Cookham Maidenhead

    Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful.

    17 Jul 2026 Lawful development
  • 26/01615/CLU Granted

    Riding Court Farm Riding Court Riding Court Road Datchet Slough SL3 9JT

    Certificate of lawfulness to determine whether the existing units 'JKL' (use class B8) used for storage and distribution; unit 'AB' (use class B8) used for hiring, maintaining, and cleaning concrete screed and machinery and 'storage yard 2' (use class B8) used for the storage of scaffolding is lawful.

    1 Jul 2026 Lawful development
  • 26/01581/CLD Granted

    The George Public House The Brewhouse The Green Holyport Road Holyport Maidenhead

    Certificate of lawfulness to determine whether the existing bollard is lawful.

    26 Jun 2026 Lawful development
  • 26/02117/CPD Awaiting decision

    27 Tyrell Gardens Windsor SL4 4DH

    Certificate of lawfulness to determine whether the proposed garage conversion is lawful.

    26 Aug 2026 Lawful development