Updated October 2026 · Fraser Bond
Planning · Hillingdon
Planning in Hillingdon, step by step
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8 weeksmost decisions
Landlordslicensing
In short: Hillingdon Council publishes planning applications and decisions on its online planning search, where you can look up an address, see plans and comment. New applications are usually submitted through the national Planning Portal. Most householder and minor applications should be decided within 8 weeks, and major applications within 13. Check Green Belt, conservation areas and any airport-related restrictions before you design anything.
How to apply
1
Check if you need permissionSome extensions and loft conversions are permitted development; flats don't have the same rights.
2
Pre-application adviceUseful for bigger or sensitive schemes.
3
Prepare drawingsLocation plan, existing and proposed plans and elevations.
4
Submit onlineThrough the Planning Portal, with the national fee.
5
ConsultationNeighbours and consultees can comment.
6
DecisionApproval, conditions or refusal. You can appeal a refusal.
Much of Hillingdon is Green Belt, where new building is tightly controlled.
Noise and safeguarding rules can affect schemes near the airport.
Check whether HMO or other licensing applies to your property.
| Application type | Target decision time |
|---|---|
| Householder | 8 weeks |
| Minor | 8 weeks |
| Major | 13 weeks |
| Lawful development certificate | Usually 8 weeks |
Statutory target periods in England
Before you submit
Owners and landlords in Hillingdon
- Rental valuation before and after works
- Lettings and full management
- Licensing support
- Free sales valuation
Frequently asked questions
Where do I search planning applications in Hillingdon?
On Hillingdon Council's online planning search, by address or reference.
How do I apply?
Most applications go through the national Planning Portal.
How long does it take?
Most householder and minor applications should be decided within 8 weeks.
Can Fraser Bond help after the works?
Yes. We can value, let and manage the property.
Improving a property in Hillingdon?
Find out what it could rent or sell for once the work is done.
Get a free valuationSpeak to our team
