Finding a Planning Application
Until recently we could all rely on those yellow planning notices advising of proposed planning applications that might affect us. These notices are not a statutory requirement and the Society understands that RBWM has withdrawn this service. In the absence of any alternative other than a press release or word of mouth the Society will publish the weekly planning applications list as issued by RBWM.
Individuals can respond to any application by letter or email. The Society reviews each application and any comments are sent to RBWM Planning with the weight of our large membership adding strength to our arguments. Applications that are likely to be of general interest are also discussed on our Facebook Group page where you will find out the application number and a direct link to the application details.
If you don't have a direct link to the application you can either search for 'RBWM Planning' which takes you via a copyright acceptance page to the planning search page or follow this direct link. Here you select Simple Search and enter the application number to take you to the application summary page. This is where you can view all comments, documents etc. We recommend looking at the documents first and usually viewing the site plans and elevations is enough for a good idea of what is going on.
Not sure how to write an objection letter?
See our Objection Letter Tips page which includes lists of valid and invalid objections
You can contact RBWM directly with your comments on a specific application.
We welcome input or questions about applications from our members
Latest Planning Application Lists
N.B. Notes in red are Cookham Society preliminary clarifications only, not decisions.
Weekly List No.33: 14 August 2026
Appn. Date: 7th August 2026 Appn No.: 26/01874 Type: Full Proposal: Relocation of the front entrance to the first floor via a new access bridge, reconfiguration of the first floor with new terrace and balcony, new flat roof and pitched roof, alterations to existing chimney, new steps and terrace, alterations to the external finish, balustrades and fenestration and new cladding to existing garage following demolition of existing elements. Location: Barbary House Gibraltar Lane Cookham Maidenhead SL6 9TR Applicant: Mr Wang c/o Agent: Mr Stephen Green HollandGreen The Old Grammar School Church Road Thame OX9 3JA Determination Date: 1 October 2026
CS – significant changes to external form and appearance including changes to roof and number and type of windows that’ll change the character of the house to ‘modern’.
Appn. Date: 6th August 2026 Appn No.: 26/01917 Type: Variation Under Reg 73 Proposal: Variation (under Section 73a) of Condition 11 (Approved plans) to substitute those plans approved under 26/00736/VAR with amended plans and without complying with Condition 2 (External materials) for the Variation (under Section 73) of Condition 12 to substitute those plans approved under 25/01078/VAR for the Variation (under Section 73) without complying with Condition 2 (Materials) and Condition 12 to substitute those plans approved under planning permission 24/01513/FULL for a two-storey front extension, two-storey side extension, single storey rear extension with balcony above, garage conversion with new roof, new pergola, fence and gates and alterations to fenestration following demolition of existing elements with amended plans. Location: Triboges Berries Road Cookham Maidenhead SL6 9SD Applicant: Mr And Mrs Chris Whall c/o Agent: Mr Jonathan Heighway Heighway Associates 34 West Street Marlow SL7 2NB Determination Date: 30 September 2026
CS – difficult to see proposed changes to that of 26/00736/VAR so assumed minor.
Appn. Date: 10th August 2026 Appn No.: 26/01923 Type: Full Proposal: Part single part two storey rear/side extension, new steps, rear terrace with balustrades and alterations to fenestration following demolition of existing elements. Location: Riverside Gibraltar Lane Cookham Maidenhead SL6 9TR Applicant: Mr Ray Reilly c/o Agent: Mr Ray Reilly RPR Planning Ltd RPR Planning Studio 42 Rutherford Way Bushey Heath Hertfordshire WD23 1NJ Determination Date: 4 October 2026
CS – amongst other changes application removes lower section of sloping roof and replaced with flat roofed side extension.
Appn. Date: 7th August 2026 Appn No.: 26/01951 Type: Cert of Lawfulness of Proposed Dev Proposal: Certificate of lawfulness to determine whether the proposed single storey side extension, enlargement of the existing roofspace to include 1no. dormer to south elevation. 2no. rooflights to south and 1no. rooflight to north elevations are lawful. Location: Chandlers Hills Lane Cookham Maidenhead SL6 9NT Applicant: Ed And Annette Marsden c/o Agent: Miss Holly Smith Cookham Design Partnership Tavistock House Waltham Road White Waltham Maidenhead SL6 3NH Determination Date: 1 October 2026
CS – single storey side extension to width of house
Appn. Date: 11th August 2026 Appn No.: 26/01976 Type: Full Proposal: 1no. outbuilding following demolition of the existing gazebo. Location: Idlewood Maidenhead Road Cookham Maidenhead SL6 9DF Applicant: Mr Neill c/o Agent: Mrs Sarah Savage Crane Garden Buildings Narford Road Narford PE321JA Determination Date: 5 October 2026
CS – replacement of old wood gazebo in garden with more modern outbuilding
Appn. Date: 7th August 2026 Appn No.: 26/01948 Type: Full Proposal: ReLocation of the front entrance door, replacement front canopy with 1no. dormer above, single storey rear extension, single storey front/side extension with new steps, 1no. additional side dormer, 1no. rear dormer and alterations to fenestration and external finish following demolition of existing elements. Location: May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD Applicant: Hannah Farmer c/o Agent: Mr Jonathan Heighway Heighway Associates 34 West Street Marlow SL7 2NB Determination Date: 1 October 2026
CS – appear to be relatively minor changes
Weekly List No.: 7 August 2026
Appn. Date: 6th August 2026 Appn No.: 26/01751 Type: Full Proposal: Single storey side/rear extension and alterations to fenestration. Location: Oberland Bedwins Lane Cookham Maidenhead SL6 9PU Applicant: Mr Andrew Mudge c/o Agent: Mr Dean Luxton Delux Designs 20 Gale Gardens Hayley Green Bracknell Berkshire SL6 8UE Determination Date: 30 September 2026
CS – single storey side / rear extension appear minor in scale
Appn. Date: 30th July 2026 Appn No.: 26/01816 Type: Full Proposal: Single storey rear infill extension and change from a hipped roof to a flat roof to the existing single storey rear element. Location: Hawthorn Lee Cedar Drive Cookham Maidenhead SL6 9DZ Applicant: Mr Ian Thomas c/o Agent: Mr Timothy Skinner Bayith Heathrow Heathrow Copse Baughurst RG26 5JJ Determination Date: 23 September 2026
CS – infill extension between two ‘wings’ to create uniform flush rear to house. Note application of similar scope (26/01120/FULL) refused.
Appn. Date: 3rd August 2026 Appn No.: 26/01894 Type: Permitted Development Extended Proposal: 1No. single storey rear extension and 1No. single storey side/rear extension no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m. Location: 1 Grange Lane Cookham Maidenhead SL6 9RP Applicant: Tricia Phillips c/o Agent: Kate Rutland DP Architects The Old Brewery Tap 3 Shirburn Street Watlington OX49 5BU Determination Date: 13 September 2026
CS – two very large single storey side extensions each to either side of house. Property History shows a number of similar permitted development applications that have been refused
Weekly List No.: 31 – 31 July 2026
Appn. Date: 27th July 2026 Appn No.: 26/01713 Type: Full Proposal: 2no. replacement rear dormers and alterations to fenestration to the ground floor side elevation. Location: St Oswalds Winter Hill Cookham Maidenhead SL6 9TT Applicant: Mrs Fiona Robinson c/o Agent: Mr Raymond Holden Rjha 6A Station Parade London Road Sunningdale SL5 0EP Determination Date: 20 September 2026
CS – relatively minor changes to window type, window sizing and location of windows
Appn. Date: 17th July 2026 Appn No.: 26/01763 Type: Cert of Lawfulness of Proposed Use Proposal: Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful. Location: Land At The Junction of Warners Hill And Dean Lane Cookham Maidenhead Applicant: Mr Syed Sahabudeen Syed Nazir Ahmed Determination Date: 10 September 2026
CS – application states “As far as I am aware the land has not been used for anything since 2023 as I can see the plan "DROC – Ref: A - 09/23". Now, it has been sold as 7 plots. Historic mapping showing the land was formerly an orchard: https://www.streetlist.co.uk/sl/sl6/sl6-9/sl6-9af#civic. The plot 3 which I own is 0.3 acre in total which can only be used to build small orchard. The planning data site suggest it is a agricultural and green belt site. https://www.planning.data.gov.uk/map/?q=sl69af&type=postcode&dataset=conservationarea#51.56131580711667,-0.7375379843836072,15.227361974545717z
Appn. Date: 22nd July 2026 Appn No.: 26/01790 Type: Full Proposal: Outdoor play structure/climbing frame. Location: The Threshing Barn Malders Lane Maidenhead SL6 6NQ Applicant: Mr T Copas c/o Agent: Mr Mumtaz Alam Cookham Design Partnership Tavistock House Waltham Road White Waltham Maidenhead SL6 3NH Determination Date: 15 September 2026
CS – elevated playhouse on stilts on perimeter of garden near to road – possibly visible from road.
Appn. Date: 24th July 2026 Appn No.: 26/01822 Type: Permitted Development Extended Proposal: Single storey side/rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.80m. Location: Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB Applicant: Elizabeth And Mike Burden c/o Agent: Tom Reynolds TRA Studio 34C Panorama Road Poole BH13 7RD Determination Date: 3 September 2026
CS – large side extension extending 8m beyond rear of house to accommodate an indoor swimming pool. In conjunction with application below.
Appn. Date: 24th July 2026 Appn No.: 26/01823 Type: Cert of Lawfulness of Proposed Dev Proposal: Certificate of lawfulness to determine whether the proposed garage conversion, alterations to fenestration, 1 no. front dormer and 1 no. rear dormer to facilitate a loft conversion is lawful. Location: Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB Applicant: Elizabeth And Mike Burden c/o Agent: Tom Reynolds TRA Studio 34C Panorama Road Poole BH13 7RD Determination Date: 17 September 2026
CS – full width of house dormers on each roof eve, together with multiple windows, visually effectively converting loft into third storey. In conjunction with application above.
Appeal Ref.: 26/60068/ENF Enforcement
Ref.: 22/50176/ENF PIns Ref.: 6012254
Date Received: 27 July 2026
Comments Due: 8 September 2026
Type: Enforcement
Appeal Type: Written Representation
Description: Appeal against FORMAL NOTICE which is issued by the Council because it appears to them that there has been a breach of planning control, within paragraph (a) Section 171A (1) of the Act, at the land described below. They consider that it is expedient to issue this Notice, having regard to the provisions of the development plan and to other material planning considerations. The Annex at the end of this Notice and the enclosures to which it refers contain important additional information.
Location: The Walled Garden White Place Farm Sutton Road Cookham Maidenhead
Appellant: THE OCCUPIERS The Walled Garden, White Place Farm, Sutton Road, Maidenhead
Weekly List No.: 30 – 24 July 2026
Appn. Date: 16th July 2026 Appn No.: 26/01673 Type: Full Proposal: Single storey front extension, single storey side extension, single storey rear extension with new rear steps, 2no. parking spaces and widening of the existing drop kerb following the demolition of the existing detached outbuilding. Location: 112 Broom Hill Cookham Maidenhead SL6 9LQ Applicant: Mr And Mrs Leahy c/o Agent: Mr Niles Joyce Creative Design And Structure Ltd Unit 1, Henson House Newtown Road Henley-on-Thames RG9 1HG Determination Date: 9 September 2026
CS - Single storey rear and side extensions and relatively small single storey front extension; additional front parking space.
Weekly List No.: 29 – 17 July 2026
Appn. Date: 7th July 2026 Appn No.: 26/01658 Type: Full Proposal: New front porch, two storey side extension, single storey side infill extension and alterations to fenestration following demolition of existing elements. Location: Inglenook Lower Road Cookham Maidenhead SL6 9HW Applicant: Jane Spiers c/o Agent: Wouter De Jager De Jager Consultancy TA Maidenhead Planning Suite 3 - 7 North Road Maidenhead SL6 1PE Determination Date: 31 August 2026
CS – two storey full depth side extension with smaller infill side extension on opposite side. Secluded location.
Appn. Date: 8th July 2026 Appn No.: 26/01670 Type: Discharge of Condition Proposal: Details required by Condition 15 (ASHP and PV) of planning permission 25/02431/FULL for the Erection of self-build replacement dwelling, new EV charger and access following demolition of existing dwelling and linked outbuildings Location: Lingerin Spade Oak Reach Cookham Maidenhead SL6 9RQ Applicant: Mr And Ms T And S Leighton Pope And Clark c/o Agent: Ms Karen Clark Hedley Clark Ltd Hampton House 14 Orchard Lea Drift Road Winkfield Windsor SL4 4RP Determination Date: 1 September 2026
CS – various documents to discharge conditions