Essex

Chelmsford planning data

11,038 planning applications from Chelmsford. 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. 10 pieces of information are filled in on at least 90% of records.

11,038

Applications

379

Enforcement notices

11,480

Appeals

1957–2026

Date range

What Chelmsford decides

We can't calculate an approval rate for Chelmsford: it doesn't publish a usable decision on enough of its applications. That's a gap in what the council makes available, not a sign that nothing is decided — 9 of the councils we hold are in the same position.

Median days to a decision

62.3

Average days

What it mostly decides

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

Application type	Applications	Share
Other	11,038	100.0%

How approval rates and decision times vary across the country →

What Chelmsford 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 Chelmsford actually provides each one, across all 11,038 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 Chelmsford 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`	11,038	100.0%
Description of the works `description`	11,038	100.0%
Council reference `reference`	11,038	100.0%
Date received `received_date`	11,030	99.9%
Status `status`	10,899	98.7%
Status (standardised wording) `status_normalized`	10,807	97.9%
Agent's email `agent_email`	10,797	97.8%
Decision date `decision_date`	10,553	95.6%
Alternative reference `alternative_reference`	10,388	94.1%
Decision (standardised wording) `decision_normalized`	10,347	93.7%

Partial — use with care

Information	Records with it	Coverage
Postcode `postcode`	8,766	79.4%
Ward `ward`	8,239	74.6%
Agent's phone `agent_phone`	6,127	55.5%

Rarely or never published

Information	Records with it	Coverage
Appeal decision `appeal_decision`	371	3.4%
Appeal decision (standardised wording) `appeal_decision_normalized`	364	3.3%
Agent's company `agent_company`	0	0.0%
Agent's name `agent_name`	0	0.0%
Applicant's name `applicant_name`	0	0.0%
Application type `application_type`	0	0.0%
Case officer `case_officer`	0	0.0%
Decision `decision`	0	0.0%
Who decided it (officer or committee) `decision_level`	0	0.0%
Type of development `development_type`	0	0.0%
Officer's recommendation `officer_recommendation`	0	0.0%
Standardised type `standard_type`	0	0.0%

Not published by this council

Chelmsford'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 Chelmsford 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=199&limit=5"

Council id for Chelmsford is 199. Full API reference for developers →

Get free access to Chelmsford data

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