Hertfordshire

Hertfordshire planning data

19 planning applications from Hertfordshire. 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. 7 pieces of information are filled in on at least 90% of records.

Applications

—

Enforcement notices

Appeals

2026–2026

Date range

Limited data for this council.

We hold only 19 applications here. Treat an absent record as "not published to us", never as "no such application".

What Hertfordshire decides

Hertfordshire has approved 100% of the 4 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 at or above the middle of the pack (89.18%).

100%

Approved, of 4 decided

Median days to a decision

100.6

Average days

What it mostly decides

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

Application type	Applications	Share
Other	19	100.0%

How approval rates and decision times vary across the country →

What Hertfordshire 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 Hertfordshire actually provides each one, across all 19 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 Hertfordshire 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`	19	100.0%
Applicant's name `applicant_name`	19	100.0%
Case officer `case_officer`	19	100.0%
Description of the works `description`	19	100.0%
Date received `received_date`	19	100.0%
Council reference `reference`	19	100.0%
Agent's name `agent_name`	18	94.7%

Partial — use with care

Information	Records with it	Coverage
Postcode `postcode`	15	78.9%
Ward `ward`	7	36.8%
Agent's company `agent_company`	5	26.3%
Decision `decision`	5	26.3%
Decision date `decision_date`	5	26.3%
Decision (standardised wording) `decision_normalized`	5	26.3%
Agent's email `agent_email`	4	21.1%

Rarely or never published

Information	Records with it	Coverage
Appeal decision `appeal_decision`	0	0.0%
Appeal decision (standardised wording) `appeal_decision_normalized`	0	0.0%
Application type `application_type`	0	0.0%
Who decided it (officer or committee) `decision_level`	0	0.0%
Map coordinates (easting) `easting`	0	0.0%
Map coordinates (northing) `northing`	0	0.0%
Standardised type `standard_type`	0	0.0%
Status `status`	0	0.0%
Status (standardised wording) `status_normalized`	0	0.0%

Not published by this council

Hertfordshire'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 phone Alternative reference Type of development 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 Hertfordshire 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=286&limit=5"

Council id for Hertfordshire is 286. Full API reference for developers →

Get free access to Hertfordshire data

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