Planning application
Timber House Hills Lane Cookham Maidenhead SL6 9NX
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Certificate of lawfulness to determine whether the proposed single storey rear extension and single storey outbuilding incidental to the main dwelling is lawful.
As published by the council, reference 25/03355/CPD
Application record
- Reference
- 25/03355/CPD
- Type
- Cert of Lawfulness of Proposed Dev
- Status
- Decided
- Decision
- Refuse
- Received
- 16 Dec 2025
- Validated
- 17 Dec 2025
- Decided
- 5 Jan 2026
- Ward
- Bisham And Cookham
- Parish
- Cookham Parish
- Decision by
- Delegated
- Postcode
- SL6 9NX
Timeline
Dates from the published record
-
16 Dec 2025
Received by Windsor and Maidenhead
-
17 Dec 2025
Validated
Checked as complete and ready for consideration.
-
5 Jan 2026
Decision issued: Refuse
-
11 Aug 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.
Trade members open them from here.
Open the documentsWhat this refusal means
Windsor and Maidenhead refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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
-
Elm Cottage Hills Lane Cookham Maidenhead SL6 9NX
Alteration to the main roof, side wall, chimney, bay window and fenestration following demolition of existing internal elements, to the cottage ancillary the main dwellinghouse.
Granted Full applications Demolition Windows or glazing 28 docsDomestic -
Hardings Cottage Hills Lane Cookham Maidenhead SL6 9NX
Single storey rear extension, increase to the exisiting habitable accommodation within the roofspace, 1no. rear dormer with Juliet balcony and alterations to fenestration.
Withdrawn Full applications Extension Loft or dormer +1 16 docsSmall domestic -
Hardings Cottage Hills Lane Cookham Maidenhead SL6 9NX
Certificate of lawfulness to determine whether the proposed two storey rear extension is lawful.
Granted Lawful development Extension 12 docs -
Hardings Cottage Hills Lane Cookham Maidenhead SL6 9NX
(T1) Oak - Reduce crown by up to a maximum of 1 metre utilizing the drop crotching technique (reduction by thinning). Finished height of tree 13 metres. Finished crown spread north to south of 15 metres, and finished crown spread east to west of 12 metres. Tip reduce east profile of crown to provide up to a maximum of 2 metres clearance to the building structure, tip reduce lower south profile of crown to provide up to a maximum of 2 metres clearance to fence, tip reduce branches encroaching on telephone cable to provide up to a maximum of 1 metre clearance, crown lift over driveway and access track to provide up to a maximum of 4.5 metres height clearance, crown clean to remove broken, dead, damaged and rubbing branches.
Granted Trees 9 docsSmall domestic -
Philbies Hills Lane Cookham Maidenhead SL6 9NX
The addition of a ground floor bay window to the front elevation.
Granted Full applications Windows or glazing 16 docs -
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26/00501/CPU Refused
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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.
-
26/01763/CPU Refused
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Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful.
-
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.
-
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.
-
26/02117/CPD Awaiting decision
27 Tyrell Gardens Windsor SL4 4DH
Certificate of lawfulness to determine whether the proposed garage conversion is lawful.