Planning application
26/01326/NMA
Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE
Proposal
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.
As published by the council, reference 26/01326/NMA
Timeline
Dates from the published record
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28 May 2026
Received by Windsor and Maidenhead
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23 Jun 2026
Decision issued: Refuse
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25 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
About amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
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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.
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24/02271/VAR Withdrawn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.
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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).
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26/01247/TPO Awaiting decision
Shalloes Alleyns Lane Cookham Maidenhead SL6 9AE
T1 - Common Ash - fell (016/1984/TPO).
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26/01174/TCA Granted
Winter Hill Cottage Winter Hill Cookham Maidenhead SL6 9TW
(T1) Cotoneaster- Reduce height by 1.5- 2m to leave an approximate final height of 4-5 meters. Reduce side by approximately 1m, leaving a final spread of approximately 4-5m. (T2) Cercis Eastern Redbud- Crown reduce by approximately 4-5m to previous pruning points (pollard points), leaving a final height of 3m. Remove damaged limbs and deadwood. (T3) Bay Tree- Crown thin 20%. Reduce top by 2-3m to give clearance to telephone line, remove crossing, weak or dead branches. Removal of approximately 6/7 of the oldest/largest stems to ground level. Final height of bay approximately 6m with a final spread of 5m. (T4) Lilac- Reduce to leave a final height of approximately 1.5-2m. (T5) Cornus Dogwood- Reduce by approximately 4m, to suitable growth points, leaving a final height of approximately 4m. (T6) Cherry - Fell to ground level, remove stump. (T7) Hazel - Crown thin 30%. Remove secondary/rubbing branches and push back the front side by 1-2m. Removal of 6/7 of the older stems to ground level. Reduce top by 1m to match height of T8. Final height approximately 8-9m with spread 6-7m. (T8) Norway Maple - Reduce height by 1m and 0.5-1m off the sides, leaving a final height of approximately 9m and spread of 5-6m.
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24/02291/CONDIT Refused
Winterhill Farm Winter Hill Cookham Maidenhead
Details required by Condition 2 (Materials), 3 (Archaeological work), 4 (Finished slab levels), 5 (Landscaping), 6 (SUDS), 10 (Bat licence), 11 (CEMP Biodiversity), 12 (BNG plan), 13 (External lighting scheme), 14 (Biodiversity enhancements) and 16 (Tree protection and AMS) of planning permission 23/02212/FULL for 1no. dwelling and 1no. detached garage with store over, alterations to existing agricultural building including the removal of one entire bay and change of use for equestrian purposes, re-routing of existing internal trackway, landscaping and other associated works following demolition of existing equestrian building.
Other amendments applications
In Windsor and Maidenhead
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26/01841/NMA Awaiting decision
Orchard End Sill Bridge Lane Waltham St Lawrence Reading RG10 0NT
Non material amendments to planning permission 25/02591/FULL as per covering letter.
-
26/01843/VAR Awaiting decision
Orchard End Sill Bridge Lane Waltham St Lawrence Reading RG10 0NT
Variation (under Section 73) of planning permission 25/02591/FULL to vary the wording of Condition 17 (Ground Sourced Heat Pump).
-
26/01807/NMA Awaiting decision
57B And Keeler Ltd Clewer Hill Road Windsor
Non material amendment to planning permission 25/02014/FULL for alterations to the wording of part D Condition 16.
-
26/01813/NMA Awaiting decision
5 Meadow Way Fifield Maidenhead SL6 2PE
Non material amendments to planning permission 26/00322/FULL to allow NatureSpace to add conditions.
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26/01811/NMA Awaiting decision
Grove Park Industrial Estate Waltham Road White Waltham Maidenhead SL6 3LW
Non material amendments to planning permission 25/01083/VAR for changes to the proposed elevations and materials to plots 10-11, 15-16, 18-19, 24-25, 26-27, 28-29, 39-41, 42-44 and 45-47 and 48-51.