Round Copse Alleyns Lane Cookham Maidenhead SL6 9AE Data via plota.co.uk

26/02161/NMA - Non-material Amendment Awaiting decision
Admin / procedural

Proposal

Non material amendments to planning permission for alterations to the roof, roof overhang, fenestration and external finish. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
2 Sept 2026
Decision
Expected by 29 Sept 2026

This application is under consideration - no decision has been issued yet. A decision is expected by 29 Sept 2026.

Documents 4

Application forms 1

PDF Application form redacted Application Forms · 2 Sept 2026 View ↗

Consultation & comments 1

PDF Neighbour notification list Neighbour Notification List · 7 Sept 2026 View ↗

Other documents 2

PDF History log Property History · 4 Sept 2026 View ↗ PDF Cover letter Correspondence - General · 2 Sept 2026 View ↗

All documents on the council site ↗

Associated applications 2

  • Part of

    FullApprovedcouncil archive
    • AmendmentNon material amendments for alterations to the roof, roof overhang, fenestration and external…This application26/02161/NMA

Site constraints 6

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
SSSI 444 m away: Cock Marsh SSSI; Inside the Cookham built-up area; Priority habitat 24 m away: No main habitat but additional habitats present; the 1970s provisional farmland map had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Windsor and Maidenhead
Application type
Non-material Amendment
Postcode
SL6 9AE
Received
2 Sept 2026
Validated
2 Sept 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Case officer
Show
Target decision
29 Sept 2026
Applicant
Show
Agent
Show

Consultation & key dates

Alt. reference
PP-15196767
Statutory expiry
29 Sept 2026
Env. assessment
No

Historical activity at this location

19 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Withdrawn
Variation (under Section 73) of Condition 13 to substitute those plans approved under 24/…
24/02271/VAR
2024 Approved
Replacement detached garage.
24/01755/FULL
2024 Refused
Non material amendments to planning permission 24/00494/FULL for the creation of 2 no. ou…
24/01865/NMA
2024 Approved
Certificate of lawfulness to determine whether the proposed replacement swimming pool is…
24/01681/CPD
2024 Approved
Non material amendments to planning permission 24/00494/FULL for a change from a clay til…
24/01682/NMA
2024 Approved
Replacement detached dwelling with solar panels.
24/00494/FULL
2023 Withdrawn
Replacement four bedroom detached dwelling with solar panels to the roof following the de…
23/02883/FULL
2023 Approved
Certificate of lawfulness to determine whether detached summer house is lawful.
23/02774/CPD
2023 Approved
As per submitted schedule, but with the following amendments: no works to T2 Oak, T29 Syc…
23/02120/TPO
2023 Approved
Certificate of lawfulness to determine whether the single storey side extension, 1no. dor…
23/02654/CPD
2023 Withdrawn
Certificate of lawfulness to determine whether the proposed single storey side extension…
23/02004/CPD
2023 Approved
Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves hei…
23/02029/PDXL
2023 Withdrawn
Single storey rear extension no greater than 8.00m in depth, 4.00m high with an eaves hei…
23/01789/PDXL
2023 Refused
Certificate of lawfulness to determine whether the proposed single storey side extension…
23/01793/CPD
2022 Approved
T3 - Beech - Crown reduction by 9m leaving a final height of 14m (012/1984/TPO).
22/03414/TPO
Within ~100m

Nearby activity

2025 Approved
Penhallow Alleyns Lane Cookham Maidenhead SL6 9AE
(G1) Beech trees - Prune the east side of the crowns to give up to 3m clearance over the…
25/02265/TPO
2022 Approved
Mulberry Lodge Alleyns Lane Cookham Maidenhead SL6 9AD
Decrease size of x1 garage door, raising of the eves and ridge with x1 front Juliet balco…
22/00164/FULL
2021 Withdrawn
Mulberry Lodge Alleyns Lane Cookham Maidenhead SL6 9AD
Variation (under Section 73a) of planning permission 09/01137/FULL without complying with…
21/03157/VAR
2018 Approved
Penhallow And Land Adjacent Magnolia House Alleyns Lane Cookham Maidenhead
(FS) - Beech Hedge - Reduce from a height of 18m to 12m and crown lift by 1m to 2.5m. (TS…
18/03108/TPO
Windsor and Maidenhead
Planning Authority Score
5.3/10
Average
#135 of 296 councils
Relevant to this application:
Householder decisions

Windsor and Maidenhead is faster than most councils at deciding householder applications, ranking #82 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Windsor and Maidenhead is also one of the strictest councils - it refuses more householder applications than almost any other, with only 74% approved vs 90% nationally.

One of the strictest councils
only 74% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Windsor and Maidenhead decision statistics
Based on MHCLG data, the year to March 2026
72%
Overall approval rate
Below avg (87%) #293 of 296
74%
Householder approved
Below avg (90%) #294 of 296
75%
Decided in 8 weeks
Above avg (63%) #82 of 296
28%
Extended time limit
Below avg (41%) #47 of 296
44%
Minor dwellings approved
156 decided (1-9 homes)
96%
Major dwellings approved
27 decided (10+ homes)
64%
Change of use approved
25 decided
1,530
Total decisions
434 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings