Windsor and Maidenhead planning applications
SiteLens tracks and classifies every planning application submitted to Royal Borough of Windsor and Maidenhead, updated daily. Royal Borough of Windsor and Maidenhead received 672 planning applications in the last 90 days, 15 of them major schemes. 81% of the applications it decided were approved, with a median decision time of 56 days.
Search Windsor and Maidenhead planning applications
Filter by type, value, date and status. The council's own register is on the official Royal Borough of Windsor and Maidenhead planning portal.
Recent applications in Windsor and Maidenhead
See all →Majors and higher-value work first, tree works, condition discharges and adverts last.
Land At Manor Farm Poyle Road Poyle Slough
Three-building data centre complex with demolition and site works, Poyle. Replaces existing buildings with three B8 data centres, substations, emergency generators and fuel storage at full application stage. Groundworks, steel frames, cladding, M&E and specialist cooling systems drive procurement…
DemolitionGroundworksStructural frame
Switchback Farm Switchback Road North Maidenhead SL6 7TY
Prior approval determination for a farm straw and hay storage barn, Maidenhead. Seeks confirmation whether planning consent is needed for a new agricultural storage structure under Schedule 2 permitted development rules. No construction can proceed until the determination is issued, pausing any…
Land Adjoining 148 And Electricity Sub-Station Staines Road Wraysbury Staines
One detached three-bedroom self-build, Wraysbury. New dwelling erected on a 0.05 hectare plot at full application stage. Groundworks, structural frame, roofing and M&E packages suit self-builders and trade suppliers in a high-value residential market.
GroundworksStructural frameBrickwork
Highclere And Land At Highclere Shoppenhangers Road Maidenhead
Single detached dwelling with PV panels and garage, Maidenhead. New house with solar array on the south-west elevation, ancillary garage, landscaping and hardstanding at full application stage. Groundworks, structural frame, roofing and solar installation suit the major packages, with premium…
GroundworksStructural frameBrickwork
Oak Tree House Twyford Road Binfield Bracknell RG42 5QD
Sports and fitness barn extension following demolition, Binfield. Replaces an existing round-top barn and garage with an extended F2 sports facility at full application stage. Structural frame, cladding and mechanical ventilation drive the packages, with groundworks and drainage supporting the new…
DemolitionGroundworksStructural frame
Liitle Marlow Sewage Treatment Works Marlow Road Little Marlow Marlow SL7 3SB
Modular training facility replacement, Little Marlow. Demolishes an expired single-storey modular building and garage, then erects two new single-storey training buildings on a sewage treatment works site. Demolition, groundworks and modular construction packages drive procurement, with M&E and…
DemolitionGroundworksStructural frame
Osmington Horton Road Horton Slough SL3 9NU
Four-flat conversion with rear extension and loft, Slough. Single dwelling divided into four self-contained flats, including a two-storey extension, loft conversion and balcony at full application stage. Partitioning, fire compartmentation, four complete kitchens and bathrooms, plus structural…
Structural repairSteelRoofing
NRS Eco Unit 1 Shirley Avenue Windsor SL4 5JL
Kitchen showroom converting to a gymnastics centre, Windsor. Change of use from B8 storage to Class E(d) indoor sport facility with internal alterations at full application stage. Fit-out, flooring, and M&E systems for sports use drive the commercial opportunity.
Fit-outM&EHard landscaping
Crown Estate Office Windsor Great Park Windsor SL4 2HT
New car park at Windsor Great Park. Creates dedicated parking infrastructure on a 0.05-hectare site at full application stage. Groundworks, surfacing, drainage and line-marking form the primary packages.
GroundworksDrainageHard landscaping
24 Riverside Egham TW20 0AD
Single dwelling replacement in Egham, Windsor and Maidenhead. Demolishes an existing bungalow and erects a new house on the same site, at spheres of mutual interest stage. Groundworks, structural frame, roofing and M&E dominate, with demolition and site clearance preceding new build.
DemolitionGroundworksStructural frame
Manor Farm Sturt Green Holyport Maidenhead SL6 2JF
Barn replacement scheme at Manor Farm, Holyport. Demolishes an existing barn and erects a replacement structure at full application stage. Demolition and structural frame packages will dominate, with cladding and drainage following on a rural site.
DemolitionGroundworksStructural frame
4 Chalgrove Close Maidenhead SL6 1XN
Two-storey side extension, single-storey extension, rear dormers and detached garage, Maidenhead. Adds substantial side and rear volume to an existing house with new detached garage, at full application stage. Roofing, brickwork, structural steels and groundworks dominate; the two-storey element…
DemolitionGroundworksStructural frame
Highclere Shoppenhangers Road Maidenhead SL6 2QA
Comprehensive house refurbishment with extensions and renewable energy, Maidenhead. Front entrance rebuild, multiple single and first-floor extensions, new roofline with dormers, PV panels, and a rear canopy on an existing dwelling at full application stage. Roofing, dormer joinery, PV…
BrickworkRoofingGroundworks
Woodhaven 8 Dawnay Close Ascot SL5 7PQ
Multi-part extension with undercroft and canopy, Ascot. Part single, part first-floor side and rear extension plus new front canopy and single-storey rear element at full application stage. Groundworks for undercroft, structural steel for first-floor cantilever, and brickwork roofing packages suit…
GroundworksStructural frameSteel
41 Lesters Road Cookham Maidenhead SL6 9LR
Single-storey side and rear extension with window replacement, Maidenhead. Adds living space to an existing house and updates fenestration at full application stage. Brickwork, roofing and groundworks suit local contractors, with glazing and joinery packages throughout.
BrickworkRoofingGroundworks
Planning appeals in Royal Borough of Windsor and Maidenhead
An allowed appeal is one the council lost. Some kinds of appeal succeed far more often than others, so Royal Borough of Windsor and Maidenhead is compared with the national rate for its own mix.
Royal Borough of Windsor and Maidenhead, raw rate
28.8%
of judged appeals were allowed
Expected for this mix of appeals
30.2%
national rates applied to this caseload
1.4 percentage points below expected. Royal Borough of Windsor and Maidenhead's decisions are overturned less often than the national record predicts.
1,079 appeals counted, 1,023 judged either way (295 allowed, 728 dismissed), 56 judged neither way. These are appeals decided 2016-07 to 2026-06.
By kind of appeal
| Appeal type | This council | National | Cases | Judged | Allowed |
|---|---|---|---|---|---|
| Planning Appeal | 29.2% | 28.8% | 537 | 527 | 154 |
| Householder (HAS) | 30.4% | 35.6% | 352 | 345 | 105 |
| Enforcement Notice | 5.7% | 13.5% | 71 | 53 | 3 |
| Lawful Development Certificate | 57.9% | 36.9% | 38 | 38 | 22 |
| Listed Building Consent & Conservation Area Consent Appeal | 21.4% | 25% | 34 | 28 | 6 |
| Tree Preservation Order | 14.3% | 20.6% | 24 | 21 | 3 |
| Appeal against Enforcement Listed Building Notice/Enforcement Conservation Area Notice | 12.5% | 8.1% | 9 | 8 | 1 |
5 more appeal types with fewer than 5 judged
| Appeal type | This council | National | Cases | Judged | Allowed |
|---|---|---|---|---|---|
| Common Land | None judged | Not published | 5 | 0 | 0 |
| Advertisement Appeal | Too few judged | 36% | 3 | 2 | 1 |
| Environmental | None judged | Not published | 3 | 0 | 0 |
| High Hedges | None judged | 28.5% | 2 | 0 | 0 |
| Commercial Appeal Service (CAS) | Too few judged | 33.3% | 1 | 1 | 0 |
How we calculate this
Judged means allowed or dismissed. Withdrawn, invalid, split and unrecorded appeals are counted but never treated as appeals the council won. Expected applies the national rate for each appeal type to this council's own caseload. National rates by type are in The State of UK Planning.
Source: the Planning Inspectorate's Casework Database on GOV.UK, not the council's own planning register. Contains public sector information licensed under the Open Government Licence v3.0.
Money behind development in Royal Borough of Windsor and Maidenhead
Royal Borough of Windsor and Maidenhead's developer contribution register is not yet in SiteLens.
Affordable housing grant in Royal Borough of Windsor and Maidenhead
What central government confirmed: schemes in the area with Homes England grant agreed.
- Shared ownership1 home
Source: Homes England Affordable Homes Programme 2021 to 2026, GOV.UK transparency data, as at 31 March 2025. Contains public sector information licensed under the Open Government Licence v3.0. Grant requested is the figure when grant was confirmed, not money drawn down. Schemes are placed by local authority name.
Royal Borough of Windsor and Maidenhead approval rates by application type
Share of decided applications approved in the last 12 months.
- householder76% (664 decided)
- other90% (325 decided)
- residential72% (110 decided)
- commercial70% (53 decided)
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Map and project brief
Every application mapped, with its category, trade, estimated value band and a plain-English brief.
Constraints and tenders
24 constraint flags on every site, and the public tenders and awards near it.
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New matching applications from this council, by email each morning.
Who's behind it (Pro)
The agent and applicant, their contact details where published, and the company directors.
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