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        • Empower communities to look after their local rivers:

          We mobilise thousands of volunteers every year, working along the riverbank to transform neglected rivers into areas that everyone can use and enjoy.

        • Restore the capital’s network of rivers through the power of nature

          We work to clean and green the capital’s 400-mile network of rivers through innovative solutions to boost biodiversity and restore nature.

        • Build a climate resilient London

          We help to build more engaged communities and healthier rivers better able to adapt to the impacts of climate change, now and into the future.

        • a group volunteers in waders walking through a shallow river on a sunny day using sticks to help them balance
        • Working together to improve our rivers

          We deliver a wide range of projects across London and the Thames Basin to restore, protect and improve our rivers for people and wildlife. Explore some of our key projects and programmes

        • Empower communities to look after their local rivers
          We mobilise thousands of volunteers every year, working along the riverbank to transform neglected rivers into areas that everyone can use and enjoy.

        • Restore the capital’s network of rivers through the power of nature
          We work to clean and green the capital’s 400-mile network of rivers through innovative solutions to boost biodiversity and restore nature.

        • Build a climate resilient London
          We help to build more engaged communities and healthier rivers better able to adapt to the impacts of climate change, now and into the future.

        • Working together to improve our rivers
          We deliver a wide range of projects across London and the Thames Basin to restore, protect and improve our rivers for people and wildlife. Explore some of our key projects and programmes.

        • Improving Rivers
          • Backwater restoration in the Maidenhead to Teddington catchment
          • Bathing waters – Reclaim Our Rivers
          • Cator Park, London Borough of Bromley
          • Understanding our rivers through connecting communities to waterways – Catchment Partnerships
          • Chinbrook Meadows Wetlands – PROJECT COMPLETED
          • Community Action for the Cut – PROJECT COMPLETED
          • Greenwich Natural Flood Management (NFM) Project
          • Marsh Dykes & Thamesmead Catchment Improvement Project
          • Oxford Rivers Project
          • Quaggy Habitats – Capel Manor Project – PROJECT COMPLETED
          • Queensmead Recreation Ground, London Borough of Bromley
          • Rewilding the Rom – PROJECT COMPLETED
          • River Beck Restoration
          • River Biodiversity Net Gain Units
          • Road run-off
          • South Essex Catchment Partnership
          • The River Ravensbourne and Glassmill Pond – PROJECT COMPLETED
        • Connecting Communities
          • Beckenham Place Park East – River Ravensbourne
          • Become a Citizen Scientist
          • Chestnuts Field
          • EMPOWER Rivers
          • Plasticblitz
          • Action for Silk Stream
          • Thames Connections
          • Thames River Watch
          • The Roding Rises
        • Education and Training
          • Citizen Science
            • Leading Action for Healthy Rivers: Thames21’s flagship training course
            • Welsh Harp Environmental Education Centre
        • What we do
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plastic

Single-use items to blame for majority of Thames pollution

More than 60% of litter would disappear from the Thames Basin if we moved away from single-use. That’s the claim from Thames21 and the Marine…

Published 22nd February 201922nd February 2019 Published in Latest news, Thames 21

Plastic pollution impact of UK’s summer heatwave: Thames bears the brunt

PRESS RELEASE Thames21 and #OneLess plastic litter research suggests Londoners switched from fizzy drinks to still water as a result of the extremely hot weather,…

Published 20th September 201827th September 2018 Published in Latest news, Media Releases

New Fighting Fund for rivers thanks to Thames21 supporters

Thames21 has raised £2,145 in its recent Crowdfunder towards our Fighting Fund to protect rivers. Sixty two of our supporters donated over 56 days. Our chief…

Published 15th August 201815th August 2018 Published in Latest news

Back our Fighting Fund to campaign for rivers

Our rivers are choking on plastic and other pollution. So we’re creating a Fighting Fund to save our rivers from being force fed a cocktail…

Published 12th July 2018 Published in Latest news

Thames River Watch recognised in Evening Standard awards

Thames21’s Thames River Watch project was recognised in the Evening Standard Business Awards last night. Tideway, the company building London’s super sewer, won the Corporate…

Published 28th June 201812th July 2018 Published in Latest news, Thames River Watch

Londoners urged to take back their rivers during London Rivers Week 2018

‘Massively increased opportunities’ for Londoners to explore and protect their rivers through collecting key data and joining clean up events Saturday 23 JUNE – Sunday…

Published 18th June 201818th June 2018 Published in Media Releases, Thames 21

Throwaway plastic tax: make your voice heard!

Concerned about the environmental impact of wet wipes, and other types of plastic, on our rivers and coastlines? You can help contribute to the solution…

Published 16th May 20188th June 2018 Published in Latest news

Wet wipes ‘to be eliminated’: Thames21 statement

Thames21 has watched the Thames riverbed change shape over the past five years, as thousands of wet wipes get dumped on our precious foreshore. They get…

Published 8th May 20188th June 2018 Published in Latest news

Record number of wet wipes found on Thames foreshore

More than 5,000 wet wipes have been found in one single area of the Thames foreshore near the iconic Hammersmith Bridge. This is the highest…

Published 24th April 20186th February 2023 Published in Latest news

Thames21 welcomes potential ban on cotton buds, plastic straws and other disposables

Plastic straws, cotton buds and other disposables could be banned from sale in England under plans set out by Theresa May this week. A consultation…

Published 20th April 201820th April 2018 Published in Latest news

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  • ‘First-of-its-kind’ citizen science study estimates 600 million litres of sewage-contaminated water enter Lower River Roding each year
    Around 600 million litres of sewage-contaminated water are estimated to enter the River Roding and its tributaries every year via unpermitted and previously unmonitored outfalls, according to a new citizen science study. This is equivalent to around 240 Olympic-sized swimming pools of polluted...

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Thames21
THAMES21

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Main Office location (& deliveries)

The City of London,
Guildhall,
Aldermanbury Street,
LONDON EC2V 7HH

Postal Address

The City of London,
Guildhall,
PO Box 270,
LONDON EC2P 2EJ

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Satellite Office

Satellite Office: 

The Lock Office,
Bow Locks,
Navigation Road (off Gillender Street),
LONDON E3 3JY

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Registered Charity number: 1103997

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