How to Apply for a PLA River Works Licence: A Practical Guide
If you're planning construction works on the tidal River Thames, there's a good chance you'll need a Port of London Authority (PLA) River Works Licence.
Whether you're repairing a jetty, constructing a new pontoon, installing piles or carrying out maintenance to an existing marine structure, obtaining the correct approvals early can save considerable time, cost and frustration later in the project.
At TILT, we regularly support clients through marine licensing and engineering approvals. One of the biggest causes of delay isn't the engineering itself—it's discovering too late that additional consents are required.
Here's what you need to know.
What is a PLA River Works Licence?
A River Works Licence is issued by the Port of London Authority (PLA) and gives permission to carry out works in, over or under the tidal River Thames.
The licence helps ensure proposed works don't adversely affect:
Navigation
River users
Flood risk
Existing infrastructure
Environmental interests
Operational safety
It sits alongside other permissions that may also be required, including planning permission and Marine Management Organisation (MMO) licences.
One approval doesn't replace another.
What projects typically require a licence?
Examples include:
New pontoons
Replacement pontoons
Jetty construction
Quay wall repairs
Berthing dolphins
Piling works
Slipways
Floating structures
Bridge works
Outfalls
Moorings
River wall repairs
Temporary works within the river
If you're unsure, it's always worth checking with the PLA before works begin.
Do I also need an MMO Licence?
Possibly.
This is where many projects become confusing.
A PLA River Works Licence relates to the Port of London Authority's responsibilities for navigation and river operations.
An MMO Marine Licence considers the environmental impacts of the proposed works.
Many projects require both approvals.
Depending on the project, you may also require:
Planning permission
Environment Agency consent
Listed building consent
Flood Risk Activity Permit
Landowner approvals
Understanding how these approvals fit together at the start of a project can prevent costly delays later.
What information is needed?
Although every project is different, a typical application may require:
Site location plans
General arrangement drawings
Engineering drawings
Construction methodology
Programme of works
Environmental information
Risk assessments
Navigation considerations
Supporting calculations where appropriate
The more complete the submission, the smoother the approval process is likely to be.
Common reasons for delays
In our experience, delays often occur because:
Drawings lack sufficient detail.
Supporting information is missing.
Environmental surveys haven't been completed.
Other approvals haven't been considered.
Engineering information changes after submission.
Spending a little longer preparing the application usually saves considerably more time later.
How long does a PLA River Works Licence take?
Timescales vary depending on the complexity of the project.
Straightforward maintenance works are often processed more quickly than major waterfront developments involving multiple stakeholders.
If your project also requires an MMO Marine Licence or environmental surveys, it's sensible to build these into the programme from the outset.
How can TILT help?
Obtaining approvals isn't simply an administrative exercise.
Good engineering input at the early stages can reduce the number of design changes later in the project.
At TILT, we regularly assist clients by:
Preparing engineering drawings
Developing construction methodologies
Advising on marine structures
Supporting consent applications
Coordinating technical information
Responding to regulator queries
Our aim is to provide clear, practical engineering advice that helps projects progress as smoothly as possible.
Frequently Asked Questions
-
No. They are separate approvals with different purposes, and many projects require both.
-
No. Works should not begin until the necessary approvals have been obtained.
-
Fees vary depending on the nature and scale of the proposed works. The PLA publishes current fee information, and additional consultancy or survey costs may also apply depending on the project.
-
Yes. We can support projects from the initial engineering design through to preparing technical information and assisting with the licensing process.
Planning works on the River Thames?
Whether you're repairing an existing structure, installing new marine infrastructure or planning a larger waterfront development, obtaining the correct approvals early is essential.
TILT Engineering & Design provides specialist marine civil engineering, inspections and licensing support for projects throughout the UK, including the tidal River Thames.
If you'd like to discuss your project, get in touch with our team for practical, straightforward advice.