Berkshire

Windsor and Maidenhead planning data

11,148 planning applications from Windsor and Maidenhead. Ask questions about them in plain English from ChatGPT or Claude — no coding, about two minutes to set up — or pull them straight into your own software. 14 pieces of information are filled in on at least 90% of records.

11,148

Applications

129

Enforcement notices

12,526

Appeals

1988–2026

Date range

What Windsor and Maidenhead decides

Windsor and Maidenhead has approved 76.36% of the 9,696 applications it has decided since January 2023. Across the 225 councils with a comparable caseload the range is 71.37% to 99.14%, so this is below the middle of the pack (89.18%).

76.36%

Approved, of 9,696 decided

Median days to a decision

77.1

Average days

What it mostly decides

The mix of application types Windsor and Maidenhead handles — useful for telling whether your kind of application is routine here or unusual.

Application type	Applications	Share
Full	4,662	41.8%
Tree	1,866	16.7%
Conditions	1,391	12.5%
Certificate	1,222	11.0%
Other	748	6.7%

How approval rates and decision times vary across the country →

What Windsor and Maidenhead actually fills in

A "field" is one piece of information on an application — the decision date, the applicant's name, the address. Councils fill these in inconsistently, so this table measures how often Windsor and Maidenhead actually provides each one, across all 11,148 records. Anything listed as reliable you can count on; anything lower, check the council's own record before relying on it.

Once this data is connected to ChatGPT or Claude you can just ask "what information does Windsor and Maidenhead actually fill in?" and get these same numbers back. How to connect →

Reliable — 90% or more of records

Information	Records with it	Coverage
Address `address`	11,148	100.0%
Application type `application_type`	11,148	100.0%
Description of the works `description`	11,148	100.0%
Date received `received_date`	11,148	100.0%
Council reference `reference`	11,148	100.0%
Ward `ward`	11,067	99.3%
Applicant's name `applicant_name`	11,030	98.9%
Status `status`	10,974	98.4%
Status (standardised wording) `status_normalized`	10,974	98.4%
Decision `decision`	10,518	94.3%
Decision date `decision_date`	10,518	94.3%
Decision (standardised wording) `decision_normalized`	10,471	93.9%
Who decided it (officer or committee) `decision_level`	10,362	92.9%
Case officer `case_officer`	10,178	91.3%

Partial — use with care

Information	Records with it	Coverage
Alternative reference `alternative_reference`	10,013	89.8%
Postcode `postcode`	9,518	85.4%
Agent's name `agent_name`	9,177	82.3%
Standardised type `standard_type`	8,881	79.7%

Rarely or never published

Information	Records with it	Coverage
Appeal decision `appeal_decision`	302	2.7%
Appeal decision (standardised wording) `appeal_decision_normalized`	302	2.7%
Agent's company `agent_company`	167	1.5%
Agent's email `agent_email`	89	0.8%
Agent's phone `agent_phone`	0	0.0%
Type of development `development_type`	0	0.0%
Officer's recommendation `officer_recommendation`	0	0.0%

Not published by this council

Windsor and Maidenhead's portal has been verified not to publish these fields at all — different from a field that exists but is rarely filled in.

Map coordinates (easting) Map coordinates (northing)

Get this data

Ask it in ChatGPT or Claude

Connect it once with your email address, then ask questions like "which extensions were refused in Windsor and Maidenhead last year?" or "what's the planning history of this address?" — no coding, about two minutes to set up. Setup guide →

Or call it from your own code

curl -H "X-Api-Key: pk_..." \
  "https://ukplanningapi.co.uk/v1/applications?council_id=103&limit=5"

Council id for Windsor and Maidenhead is 103. Full API reference for developers →

Get free access to Windsor and Maidenhead data

500 lookups a month, free. No card, no password — we email you a sign-in link and you're in.