In the last 12 months, 81.0% of home project applications were approved in Windsor and Maidenhead (121 decided): extensions, loft conversions and similar work. A typical home project decision takes about eight weeks (median 59 days).
Across all application types, 76.7% of 2,580 applications decided since February 2023 were approved. Based on Windsor and Maidenhead's public planning register. Data last updated: 16 August 2026.
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All applications on record, not only the last 12 months.
| Category | Decided | Approved | Refused | Approval rate |
|---|---|---|---|---|
| Full planning applications | 1,063 | 756 | 307 | |
| Certificate of lawfulness (confirming permitted development) | 340 | 237 | 103 | |
| Discharging planning conditions | 287 | 258 | 29 | |
| Protected tree works (TPO) | 211 | 200 | 11 | |
| Tree works in a conservation area | 190 | 190 | 0 | no refusals recorded |
| Minor amendment to an approved scheme (S96a) | 92 | 58 | 34 | |
| Listed Building Consent | 86 | 69 | 17 | |
| Variation Under Reg 73 | 60 | 52 | 8 | |
| Permitted Development Extended | 58 | 40 | 18 | |
| Change of use to homes (prior approval, Class MA) | 45 | 16 | 29 | |
| Advertisement Consent | 41 | 37 | 4 | |
| Spheres of Mutual Interest | 21 | 16 | 5 | |
| Other* | 86 | 51 | 35 | mixed types |
Tree works in a conservation area: no refusals are recorded in this category for this authority, so no approval rate is shown.
* Other combines smaller categories: Legal Agreement - Modification/Discharge (15), Prior approval (permitted development) (14), Adding storeys (prior approval, Class AA) (13), Outline Planning (11), Reserved matters (detail after outline approval) (7), Class J Permitted Development (7), Phone masts and telecoms (5), Demolition (4), Pt 20 Class A (new dwellinghouses on (3), Reg 75- 2017 Habitat Regulations (2), Environmental impact screening and scoping (2), Permission in Principle (2), Barn to home conversion (prior approval, Class Q) (1).
The most recent three years. Earlier decisions are included in the totals above but not in this chart.
| Quarter | Decided | Approved | Approval rate |
|---|---|---|---|
| Q3 2023 | 87 | 74 | |
| Q4 2023 | 208 | 158 | |
| Q1 2024 | 225 | 182 | |
| Q2 2024 | 137 | 106 | |
| Q3 2024 | 264 | 196 | |
| Q4 2024 | 208 | 152 | |
| Q1 2025 | 231 | 161 | |
| Q2 2025 | 223 | 172 | |
| Q3 2025 | 235 | 177 | |
| Q4 2025 | 213 | 159 | |
| Q1 2026 | 166 | 133 | |
| Q2 2026 | 7 | 6 | sample too small |
| Q3 2026 (quarter in progress) | 17 | 16 | sample too small |
The 12 wards with the most decided applications, across all years. 232 further decided applications fall in wards not shown.
Among wards with at least 20 decided applications, approval rates range from 58.3% in Datchet Horton And Wraysbury to 88.8% in Oldfield, a gap of 30.5 percentage points.
| Ward | Decided | Approved | Refused | Approval rate |
|---|---|---|---|---|
| Eton And Castle | 316 | 261 | 55 | |
| Hurley And Walthams | 232 | 172 | 60 | |
| Bisham And Cookham | 227 | 180 | 47 | |
| Bray | 222 | 168 | 54 | |
| Ascot & Sunninghill | 200 | 152 | 48 | |
| Datchet Horton And Wraysbury | 192 | 112 | 80 | |
| Sunningdale And Cheapside | 170 | 124 | 46 | |
| St Marys | 120 | 89 | 31 | |
| Clewer And Dedworth East | 102 | 82 | 20 | |
| Oldfield | 98 | 87 | 11 | |
| Riverside | 96 | 74 | 22 | |
| Clewer And Dedworth West | 89 | 69 | 20 |
Not sure what you can build without planning permission? See our guides to permitted development rights, Article 4 directions and planning costs.
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