Hampshire

Southampton planning data

5,883 planning applications from Southampton. 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. 15 pieces of information are filled in on at least 90% of records.

5,883

Applications

608

Enforcement notices

680

Appeals

1974–2026

Date range

What Southampton decides

Southampton has approved 86.92% of the 4,175 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%).

86.92%

Approved, of 4,175 decided

Decision times can't be measured here — Southampton doesn't publish both a received and a decision date on enough records. The nationwide range across councils that do is 31 to 299 days.

What it mostly decides

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

Application type	Applications	Share
Full	2,653	45.1%
Tree	1,248	21.2%
Conditions	606	10.3%
Other	521	8.9%
Certificate	438	7.4%

How approval rates and decision times vary across the country →

What Southampton 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 Southampton actually provides each one, across all 5,883 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 Southampton 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`	5,883	100.0%
Description of the works `description`	5,883	100.0%
Council reference `reference`	5,883	100.0%
Application type `application_type`	5,877	99.9%
Status `status`	5,878	99.9%
Status (standardised wording) `status_normalized`	5,878	99.9%
Ward `ward`	5,877	99.9%
Case officer `case_officer`	5,862	99.6%
Agent's email `agent_email`	5,847	99.4%
Applicant's name `applicant_name`	5,837	99.2%
Alternative reference `alternative_reference`	5,661	96.2%
Decision `decision`	5,536	94.1%
Decision date `decision_date`	5,536	94.1%
Who decided it (officer or committee) `decision_level`	5,491	93.3%
Decision (standardised wording) `decision_normalized`	5,472	93.0%

Partial — use with care

Information	Records with it	Coverage
Postcode `postcode`	5,270	89.6%
Agent's name `agent_name`	4,788	81.4%
Agent's phone `agent_phone`	4,632	78.7%
Standardised type `standard_type`	2,064	35.1%
Agent's company `agent_company`	1,009	17.2%

Rarely or never published

Information	Records with it	Coverage
Appeal decision `appeal_decision`	82	1.4%
Appeal decision (standardised wording) `appeal_decision_normalized`	82	1.4%
Type of development `development_type`	0	0.0%
Officer's recommendation `officer_recommendation`	0	0.0%

Not published by this council

Southampton'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) Date received

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 Southampton 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=110&limit=5"

Council id for Southampton is 110. Full API reference for developers →

Get free access to Southampton data

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