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

St Marys at 92.6% based on 242 decisions.

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

Datchet Horton And Wraysbury at 71.4% based on 483 decisions.

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

There is a 21.2% 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 21.2% — that's not noise, it's a fundamentally different planning environment depending on where you live.

6,575 real decisions·19 wards·Updated March 2026

85.2% approved overall. But 974 applications refused since 2020. Where you live in Windsor & Maidenhead shifts your odds by up to 21.2%. The council average doesn't tell you which side of that gap you're on.

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All 19 wards ranked

#	Ward	Decisions	Approved	Refused	Rate
1	St Marys	242	224	18	92.6%
2	Cox Green	192	173	19	90.1%
3	Bisham And Cookham	603	542	61	89.9%
4	Hurley And Walthams	520	466	54	89.6%
5	Eton And Castle	704	628	76	89.2%
6	Pinkneys Green	210	184	26	87.6%
7	Furze Platt	214	185	29	86.4%
8	Boyn Hill	234	202	32	86.3%
9	Riverside	283	241	42	85.2%
10	Belmont	232	197	35	84.9%
11	Clewer East	247	209	38	84.6%
12	Clewer And Dedworth West	240	201	39	83.8%
13	Bray	456	381	75	83.6%
14	Clewer And Dedworth East	217	181	36	83.4%
15	Old Windsor	269	224	45	83.3%
16	Oldfield	190	158	32	83.2%
17	Sunningdale And Cheapside	433	360	73	83.1%
18	Ascot & Sunninghill	569	469	100	82.4%
19	Datchet Horton And Wraysbury	483	345	138	71.4%

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 21.2% gap separates the best and worst wards. St Marys approves 92.6% of applications while Datchet Horton And Wraysbury approves just 71.4%. 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

974 planning applications in Windsor & Maidenhead have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 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 6,575 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 →