Greater London

Hounslow planning data

5,874 planning applications from Hounslow. 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. 12 pieces of information are filled in on at least 90% of records.

5,874

Applications

—

Enforcement notices

1,726

Appeals

2023–2026

Date range

What Hounslow decides

Hounslow has approved 81.26% of the 4,381 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%).

81.26%

Approved, of 4,381 decided

Median days to a decision

Average days

What it mostly decides

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

Application type	Applications	Share
Householder	1,501	25.6%
Other	1,315	22.4%
Tree	912	15.5%
Certificate	840	14.3%
Full	804	13.7%

How approval rates and decision times vary across the country →

What Hounslow 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 Hounslow actually provides each one, across all 5,874 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 Hounslow 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`	5,874	100.0%
Application type `application_type`	5,874	100.0%
Description of the works `description`	5,874	100.0%
Council reference `reference`	5,874	100.0%
Status `status`	5,874	100.0%
Status (standardised wording) `status_normalized`	5,874	100.0%
Case officer `case_officer`	5,859	99.7%
Ward `ward`	5,844	99.5%
Postcode `postcode`	5,809	98.9%
Date received `received_date`	5,553	94.5%
Applicant's name `applicant_name`	5,511	93.8%
Decision (standardised wording) `decision_normalized`	5,350	91.1%

Partial — use with care

Information	Records with it	Coverage
Map coordinates (easting) `easting`	5,266	89.6%
Map coordinates (northing) `northing`	5,266	89.6%
Decision date `decision_date`	5,075	86.4%
Decision `decision`	5,068	86.3%
Standardised type `standard_type`	3,902	66.4%

Rarely or never published

Information	Records with it	Coverage
Agent's company `agent_company`	0	0.0%
Agent's name `agent_name`	2	0.0%
Appeal decision (standardised wording) `appeal_decision_normalized`	0	0.0%

Not published by this council

Hounslow'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 email Agent's phone Alternative reference Appeal decision Who decided it (officer or committee) 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 Hounslow 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=292&limit=5"

Council id for Hounslow is 292. Full API reference for developers →

Get free access to Hounslow data

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