Which ward in Windsor & Maidenhead has the highest planning approval rate?

St Marys at 91.9% based on 271 decisions.

Which ward in Windsor & Maidenhead has the lowest planning approval rate?

Datchet Horton And Wraysbury at 72.1% based on 548 decisions.

How much do planning approval rates vary across Windsor & Maidenhead?

There is a 19.8% gap between St Marys and Datchet Horton And Wraysbury. Your postcode significantly affects outcomes.

Planning Approval Rates by Ward in Windsor & Maidenhead

Planning outcomes in Windsor & Maidenhead are highly localised. The gap between the most and least permissive wards is 19.8% — that's not noise, it's a fundamentally different planning environment depending on where you live.

7,447 real decisions·19 wards·Updated June 2026

84.3% approved overall. But 1,169 applications refused since 2020. Where you live in Windsor & Maidenhead shifts your odds by up to 19.8%. The council average doesn't tell you which side of that gap you're on.

Check Planning Approval Patterns in Windsor & Maidenhead

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All 19 wards ranked

#	Ward	Decisions	Approved	Refused	Rate
1	St Marys	271	249	22	91.9%
2	Cox Green	222	198	24	89.2%
3	Bisham And Cookham	706	622	84	88.1%
4	Pinkneys Green	235	206	29	87.7%
5	Hurley And Walthams	595	522	73	87.7%
6	Eton And Castle	803	699	104	87.0%
7	Boyn Hill	254	218	36	85.8%
8	Furze Platt	232	199	33	85.8%
9	Belmont	260	222	38	85.4%
10	Clewer East	267	227	40	85.0%
11	Riverside	319	270	49	84.6%
12	Clewer And Dedworth East	245	204	41	83.3%
13	Old Windsor	296	245	51	82.8%
14	Bray	526	435	91	82.7%
15	Oldfield	219	181	38	82.6%
16	Ascot & Sunninghill	637	521	116	81.8%
17	Clewer And Dedworth West	268	219	49	81.7%
18	Sunningdale And Cheapside	501	409	92	81.6%
19	Datchet Horton And Wraysbury	548	395	153	72.1%

See how this applies to your postcode →

These are council averages. Your property is specific.

An extension might sail through in St Marys but face serious resistance in Datchet Horton And Wraysbury.
Check your postcode to see what actually happens near your address.

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What the data tells us

A 19.8% gap separates the best and worst wards. St Marys approves 91.9% of applications while Datchet Horton And Wraysbury approves just 72.1%. That's a fundamentally different planning environment.

High volume doesn't mean high approval. Some of the busiest wards aren't the most permissive. The number of applications a ward processes tells you nothing about how likely yours is to succeed.

Ward averages are a starting point, not a guarantee. Your specific outcome depends on your property, your neighbours, your proposal type and the comparable decisions near your address.

Before you spend £5,000+ on architects and drawings

1,169 planning applications in Windsor & Maidenhead have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

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More Windsor & Maidenhead planning data

Nearby councils ward breakdowns

Methodology: Covers 7,447 planning decisions in Windsor & Maidenhead, January 2020 to present. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid excluded. Ward boundaries reflect current electoral divisions. Data from Windsor & Maidenhead Council's public planning portal. Full methodology →