Riverside Gibraltar Lane Cookham Maidenhead SL6 9TR Data via plota.co.uk

26/01923/FULL - Full Awaiting decision
DemolitionExtensions & alterations

Proposal

Part single part two storey rear/side extension, new steps, rear terrace with balustrades and alterations to fenestration following demolition of existing elements. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
4 Aug 2026
✓
Validated
10 Aug 2026
Decision
Target date was 4 Oct 2026

Under consideration

No decision has been issued yet. Plota predicted a decision around 28 Oct 2026; it is now day 79.

The consultation period closed on 7 Sept 2026.

Documents 9

Statements & assessments 2

PDF Planning, design & heritage statement Design and Access Statement · 11 Aug 2026 View ↗ PDF Emergence survey Supporting Information - Ecology · 4 Aug 2026 View ↗

Plans & drawings 1

PDF Tree constraints plan Supporting Information - Trees · 4 Aug 2026 View ↗

Application forms 2

PDF Application form redacted Application Forms · 4 Aug 2026 View ↗ PDF Cil form 1 CIL Documents · 4 Aug 2026 View ↗

Consultation & comments 1

PDF Environmental agency-email Consultee - Comments · 12 Aug 2026 View ↗

Other documents 3

PDF Advert Supporting Information - General · 14 Aug 2026 View ↗ PDF History log Property History · 11 Aug 2026 View ↗ PDF Trees information Supporting Information - Trees · 4 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 8

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 1
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; SSSI 436 m away: Cock Marsh SSSI; Inside the Cookham built-up area; Priority habitat 41 m away: Deciduous woodland; Open access land 49 m away: Access Land - Combined Open Country, Registered Common Land and Section 16 Dedicated Land. MoD Byelaw, Section 28 Exclusions, Racecourses and Aerodromes and ECP Margin have been removed.; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 4, 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 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 area362 m² (3,897 sq ft)
Energy ratingF (26 out of 100), could reach D
PropertyDetached house, 12 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, oil
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2022, 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

18 Aug 2026Approved

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17 Aug 2026Pending

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T1-T5 refer to proposed works document.

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7 Aug 2026Approved

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12 Oct 2026Pending

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9 Sept 2026Approved

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2 Sept 2026Refused

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1 Sept 2026Pending

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18 Aug 2026Approved

Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR

(T6) Ash (T7) Ash and (T8) Elm - Fell (006/2024/TPO)

26/01779/TPO
17 Aug 2026Approved

Riverside Gibraltar Lane Cookham Maidenhead SL6 9TR

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Important details

Council
Windsor and Maidenhead
Application type
Full
Postcode
SL6 9TR
Received
4 Aug 2026
Validated
10 Aug 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Case officer
Show
Target decision
4 Oct 2026
Applicant
Show
Agent
Show

Decision outlook

Day 79, past the statutory target. 92% of demolitions in Windsor and Maidenhead are decided within thirteen weeks, which runs to 9 Nov 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 27 Oct 2026.

Day 7923 days past the 56-day target
77%decided within 8 weeks
75%approved
198decided in the last year

Plota live figures for demolitions decided by Windsor and Maidenhead in the last twelve months, from validation. Windsor and Maidenhead decision record →

Consultation & key dates

Alt. reference
PP-15088320
Planning Portal ref
PP-15088320
Comments by
7 Sept 2026
Statutory expiry
4 Oct 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2024 Approved
T5 Weeping ash - fell. T8 Purple leaf plum - fell. T13 Ash - fell. 1x Field Maple - Fell…
24/01187/TCA
2023 Approved
Enlargement of existing lower ground floor, two storey front extension with front gable…
23/03099/FULL
2023 Withdrawn
Enlargement of existing lower ground floor, two storey front extension with front gable…
23/02203/FULL
2023 Approved
Certificate of lawfulness to determine whether the single storey rear extension and 2no…
23/01855/CPD
2023 Refused
Certificate of lawfulness to determine whether the alterations to lower ground floor to p…
23/01626/CPD
2023 Approved
Two and a half storey front extension with gable, 2 no. single storey side extensions, en…
23/00332/FULL
Within ~100m

Nearby activity

2025 Approved
Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR
Single storey extension to east elevation, new raised patio, steps and alterations to fen…
25/03175/FULL
2025 Approved
The Islands Gibraltar Lane Cookham Maidenhead SL6 9TR
2 Alders and 1 Horse Chestnut - Cut back/pollard (as shown).
25/00718/TCA
2025 Approved
Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR
1no. outbuilding ancillary to the main dwelling following demolition of exiting elements.
25/00443/FULL
2024 Approved
Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR
Single storey side extension, new steps and alterations to fenestration following demolit…
24/02881/FULL
2023
Riverwood Heights Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Beech - Crown reduce by 2-3m, leaving a 15m height and 8m spread.
23/02098/TCA
2023 Approved
Riverwood Heights Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Beech - fell leaving low stump.
23/00157/TCA
2022 Approved
Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR
Single storey side extension, removal of existing Juliet balcony on side elevation and al…
22/00859/FULL
2021 Approved
Quarry Cottage Gibraltar Lane Cookham Maidenhead SL6 9TR
(T5) Whitebeam - trim back to boundary (T6) Beech - trim back to boundary (T7) Larch - tr…
21/02471/TCA
2021 Approved
The Islands Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Horse Chestnut - cut back overhanging branches back to the boundary line. (T2) Beech…
21/00945/TCA
2019 Approved
The Islands Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Horse Chestnut - remove limb on Eastern side back from over the Magnolia on Eastern…
19/01501/TCA
2019 Approved
Riversteps Gibraltar Lane Cookham Maidenhead SL6 9TR
Proposed replacement conservatory and single storey side extension with alterations to fe…
19/00420/FULL
2019 Approved
Quarry House Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) - Beech - Section fell, leaving stump at a height of approximately 6m. (T2) - Beech…
19/00024/TCA
2018 Approved
Quarry House Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Beech - Fell
18/00837/TCA
2017 Approved
Quarry House Gibraltar Lane Cookham Maidenhead SL6 9TR
T1 Beech (Fagus Sylvatica) - Reduction of the main lateral branches by 2.5m reducing back…
17/03292/TCA
2017 Approved
Quarry House Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) - Beech - Reduce by 3m.
17/01228/TCA
2016 Approved
The Islands Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Beech - reduce back limbs no more than 1.5m (T2) Ash - reduce longest, lowest latera…
16/03564/TPO
2016 Approved
Gibraltar House Gibraltar Lane Cookham Maidenhead SL6 9TR
(T1) Beech - remove to source lowest limb to balance canopy (T2) Holly - fell (T3) Bay…
16/03584/TCA
2016 Approved
Gibraltar House Gibraltar Lane Cookham Maidenhead SL6 9TR
Extension of timber deck and amendments to fenestration
16/00201/FULL
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.