Tynron Church Road Cookham Dean Maidenhead SL6 9PD Data via plota.co.uk

26/00565/FULL - Full Withdrawn
Change of useNew homesSolar & renewablesUtility infrastructure

Proposal

Sub-division of the existing detached dwelling to form 2no. apartments, solar panels, EV charging points and 2no. air source heat pumps. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
3 Mar 2026
✓
Validated
27 Apr 2026
−
Withdrawn
18 Jun 2026

Withdrawn on 18 Jun 2026 · Delegated · Last checked 7 Sept 2026

Documents 17

Decision & officer reports 1

PDF Withdrawn full Councils Decision · 18 Jun 2026 View ↗

Statements & assessments 6

PDF Ecology comment Consultee - Comments · 20 May 2026 View ↗ PDF Sustainability Consultee - Comments · 18 May 2026 View ↗ PDF Bio diversity and ecology statement Supporting Information - Ecology · 30 Mar 2026 View ↗ PDF Sustainability and energy statement Supporting Information - General · 30 Mar 2026 View ↗ PDF Appendix 1 sustainability checklist Supporting Information - General · 30 Mar 2026 View ↗ PDF Design and access statement Design and Access Statement · 30 Mar 2026 View ↗

Application forms 1

PDF Cil form 1 CIL Documents · 30 Mar 2026 View ↗

Consultation & comments 6

PDF Highway authority Consultee - Comments · 15 Jun 2026 View ↗ PDF Conservation comments Consultee - Comments · 19 May 2026 View ↗ PDF Cookham parish council comments Parish Council Comments · 15 May 2026 View ↗ PDF Llfa commnet Consultee - Comments · 14 May 2026 View ↗ PDF Neighbour notification list Neighbour Notification List · 28 Apr 2026 View ↗ PDF Environmental protection comment Consultee - Comments · 28 Apr 2026 View ↗

Other documents 3

PDF Advert Supporting Information - General · 1 May 2026 View ↗ PDF History log Property History · 27 Apr 2026 View ↗ PDF Applicationformredacted Application Forms · 30 Mar 2026 View ↗

All documents on the council site ↗

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. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
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
Radon affected area, class 2; 1 listed building within 150 m; Inside the Cookham built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) 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 scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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.

Building

Floor area288 m² (3,100 sq ft)
Energy ratingD (68 out of 100), could reach C
PropertyDetached bungalow, 11 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2021, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

16 Sept 2026Pending

The Orchard Church Road Cookham Dean Maidenhead SL6 9PD

Variation (under Section 73) of Condition 4 to substitute those plans approved u...

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24 Aug 2026Pending

Dyars Church Road Cookham Dean Maidenhead SL6 9PJ

Variation (under Section 73a) of Condition 3 to substitute those plans approved ...

26/02085/VAR
28 Jul 2026Approved

Ridgemount Church Road Cookham Dean Maidenhead SL6 9PJ

(T1) Silver birch - Section fell. (T2) Damson - Crown reduce by up to 1.5m (refe...

26/01858/TCA
26 Jun 2026Approved

Huntsmans House Church Road Cookham Dean Maidenhead SL6 9PG

Part conversion and extension of the existing car port to form a pool house and ...

26/01575/FULL

Nearby new applications

25 Sept 2026Pending

Rose Cottage Dean Lane Cookham Maidenhead SL6 9BG

Details required by Condition 1 (Commencement), 2 (Sample panel) and 3 (Landscap...

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27 Aug 2026Pending

The Chequers Dean Lane Cookham Maidenhead SL6 9BQ

Erection of ancillary extensions comprising open-sided solar car port, greenhous...

26/02130/FULL
27 Aug 2026Pending

The Chequers Dean Lane Cookham Maidenhead SL6 9BQ

Consent for erection of ancillary extensions comprising open-sided solar car por...

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16 Sept 2026Pending

The Orchard Church Road Cookham Dean Maidenhead SL6 9PD

Variation (under Section 73) of Condition 4 to substitute those plans approved u...

26/02276/VAR
24 Aug 2026Pending

Dyars Church Road Cookham Dean Maidenhead SL6 9PJ

Variation (under Section 73a) of Condition 3 to substitute those plans approved ...

26/02085/VAR
19 Aug 2026Pending

Pudseys Spring Lane Cookham Dean Maidenhead SL6 9PN

Part demolition, reconstruction and extension to southern element of Pudseys.

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Important details

Council
Windsor and Maidenhead
Application type
Full
Postcode
SL6 9PD
Received
3 Mar 2026
Validated
27 Apr 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Case officer
Show
Target decision
21 Jun 2026
Decision
Application Withdrawn
Decision date
18 Jun 2026
Decision level
Delegated
Applicant
Show

Consultation & key dates

Alt. reference
PP-14746834
Planning Portal ref
PP-14746834
Comments by
25 May 2026
Statutory expiry
21 Jun 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025 Withdrawn
Subdivision of the existing dwelling to form 2 No. apartments.
25/00825/FULL
2024 Approved
Cypress trees located adjacent to the garages and parking area as shown on the amended de…
24/00195/TCA
2022 Refused
Raising the existing roof to include x4 rooflights to south and north elevation, x1 windo…
22/00563/FULL
Within ~100m

Nearby activity

2025 Approved
5 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
G1 - x2 Sycamore and x1 Elm - prune back to boundary fence line as possible whilst keepin…
25/02432/TCA
2025 Approved
Mulberry House Church Road Cookham Dean Maidenhead SL6 9PD
(T1) Holm oak - Crown lift to provide up to 2.5m clearance above ground level and prune t…
25/02196/TCA
2025 Refused
6 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
Part single part two storey rear extension.
25/00417/FULL
2025 Refused
5 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
First floor rear extension.
25/00422/FULL
2022 Approved
Mulberry House Church Road Cookham Dean Maidenhead SL6 9PD
New carport to the Coach House.
22/02605/FULL
2022 Approved
5 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
T1 - Walnut - Crown reduction by up to 2m to a final height of 6m and spread 4m, T2 - Syc…
22/01141/TCA
2021 Approved
The Nook Church Road Cookham Dean Maidenhead SL6 9PD
T1 - Lime - Crown reduction to a final spread of 5m, T2 - Ash - fell, T3 - Hazelnut - fell
21/02361/TCA
2021 Approved
Grove Cottage Church Road Cookham Dean Maidenhead SL6 9PD
Garage conversion into habitable accommodation with single storey front and rear extensio…
21/01152/FULL
2021 Approved
Grove Cottage Church Road Cookham Dean Maidenhead SL6 9PD
New pedestrian entrance gate.
21/00278/FULL
2020 Approved
St John The Baptist Church Church Road Cookham Dean Maidenhead SL6 9PD
(T1) Lime - Crown lift to a height 4.5m over ground level and removal of lower branches…
20/02861/TCA
2020 Approved
Holly Cottage Cookham Dean Common Cookham Maidenhead SL6 9NZ
Single storey front extension with canopy, single storey side extension, alteration to fr…
20/02020/FULL
2020 Approved
Grove Cottage Church Road Cookham Dean Maidenhead SL6 9PD
(T1) Cherry - fell
20/01256/TCA
2020 Approved
Sherlocks Church Road Cookham Dean Maidenhead SL6 9PD
Two storey side extension, alterations to fenestration and relocation of the access and g…
20/00374/FULL
2020 Approved
Lynwood Church Road Cookham Dean Maidenhead SL6 9PD
Single storey side extension, raising of the eaves and a new pitched roof to part of the…
20/00245/FULL
2019 Refused
Lynwood Church Road Cookham Dean Maidenhead SL6 9PD
(T1) - Yew - Fell.
19/03201/TCA
2019 Withdrawn
Lynwood Church Road Cookham Dean Maidenhead SL6 9PD
Single storey side extension, raising of the eaves and a new pitched roof to part of the…
19/01858/FULL
2019 Approved
5 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
(T1) Sycamore - remove lowest limb overhanging Sherlocks, crown reduce remaining canopies…
19/01808/TCA
2019 Approved
Easthorpe Church Road Cookham Dean Maidenhead SL6 9PD
(T1) Magnolia - section fell leaving stump at ground level; (T2) Yew - reduce the height…
19/01230/TCA
2018 Approved
Street Record Church Road Cookham Dean Maidenhead
(T1) Lime - Reduce crown by 20 - 30% and remove deadwood. (T2) Lime - Reduce crown by 20…
18/03573/TCA
2018 Approved
Mulberry House Church Road Cookham Dean Maidenhead SL6 9PD
(T1) - Lime - Remove dead limb and raise canopy by 1.5m. (T2) - Sycamore - Remove deadwoo…
18/03049/TCA
2016 Approved
2 Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
Rear extension roof replaced with flat roof, front canopy roof replaced with sloping tile…
16/03328/FULL
2016 Approved
Easthorpe Church Road Cookham Dean Maidenhead SL6 9PD
G1& G2: Laurel hedges - Face trim both sides and trim top back to previous thatch. G3: La…
16/02474/TCA
2016 Approved
Mulberry House Church Road Cookham Dean Maidenhead SL6 9PD
Replacement conservatory.
16/00755/FULL
2016 Approved
Mulberry House Church Road Cookham Dean Maidenhead SL6 9PD
Addition of 2 no. rear dormers and 1 no. side dormer - amendments to pp 15/03061 (Infilli…
16/00604/FULL
2016 Approved
Land Rear of Albion Cottages Church Road Cookham Dean Maidenhead SL6 9PE
(T1) Sycamore, tip reduce by 1.5m. (T2) Sycamore, tip reduce and re-shape crown by 1m. (T…
16/00343/TCA
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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.