West Sussex

Arun planning data

6,825 planning applications from Arun. 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.

6,825

Applications

—

Enforcement notices

413

Appeals

2023–2026

Date range

What Arun decides

Arun has approved 87.5% of the 5,234 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%).

87.5%

Approved, of 5,234 decided

Median days to a decision

64.7

Average days

What it mostly decides

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

Application type	Applications	Share
Other	6,825	100.0%

How approval rates and decision times vary across the country →

What Arun 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 Arun actually provides each one, across all 6,825 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 Arun 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`	6,825	100.0%
Agent's name `agent_name`	6,824	100.0%
Applicant's name `applicant_name`	6,824	100.0%
Case officer `case_officer`	6,824	100.0%
Description of the works `description`	6,825	100.0%
Date received `received_date`	6,824	100.0%
Council reference `reference`	6,825	100.0%
Status `status`	6,825	100.0%
Ward `ward`	6,823	100.0%
Status (standardised wording) `status_normalized`	6,647	97.4%
Decision date `decision_date`	6,559	96.1%
Decision `decision`	6,554	96.0%
Decision (standardised wording) `decision_normalized`	6,388	93.6%
Postcode `postcode`	6,256	91.7%

Rarely or never published

Information	Records with it	Coverage
Appeal decision (standardised wording) `appeal_decision_normalized`	0	0.0%
Application type `application_type`	0	0.0%
Standardised type `standard_type`	0	0.0%

Not published by this council

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

Agent's company Agent's email Agent's phone Alternative reference Appeal decision Who decided it (officer or committee) Type of development Map coordinates (easting) Map coordinates (northing) Officer's recommendation

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 Arun 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=95&limit=5"

Council id for Arun is 95. Full API reference for developers →

Get free access to Arun data

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