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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.

        • 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.

        • 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
          • Community Action for the Cut
          • Greenwich Natural Flood Management (NFM) Project
          • Marsh Dykes & Thamesmead Catchment Improvement Project
          • Oxford Rivers Project
          • Quaggy Habitats – Capel Manor Project
          • Queensmead Recreation Ground, London Borough of Bromley
          • Rewilding the Rom
          • River Beck Restoration
          • River Biodiversity Net Gain Units
          • Road run-off
          • South Essex Catchment Partnership
          • The River Ravensbourne and Glassmill Pond
        • 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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River Thames

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

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

Thames21 welcomes Deposit Return System as it ‘will significantly help rivers’

Thames21 is delighted that Michael Gove, the Secretary of State for the Environment, has announced today that the Government plans to implement a deposit return…

Published 28th March 201829th March 2018 Published in Latest news

Thames21 hits out at fish being dumped in Thames by Brexiteers

Thames21 today criticises the Fishing for Leave Protest – during which dead haddock were thrown into the Thames – because the stunt damages the river’s…

Published 21st March 201822nd March 2018 Published in Latest news

Thames21 mourns inventor and advisory council member Trevor Baylis

Thames21 is very sad to hear the news of the death of Trevor Baylis, CBE on 5 March 2018. He was a founder member of…

Published 8th March 2018 Published in Latest news

Londoners rally to measure plastic’s hidden impact on the Thames

Thousands of wet wipes flushed down toilets are shedding plastic into the river and changing the shape of the riverbed    Date of release: Monday…

Published 26th February 201819th April 2018 Published in Media Releases

Sign up to be Litter Heroes with Thames21’s events for Great British Spring Clean

Thames21 and our volunteer groups are giving you the chance to get involved with the Great British Spring Clean, which runs from March 2-4 –…

Published 21st February 20188th June 2018 Published in Latest news

Thames21 Badged Group reports huge amounts of plastic litter in Thames Estuary

Thames21’s latest Badged Group has cleared unprecedented amounts of plastic from the north side of the Thames Estuary. Last weekend the newly-accredited group, based in…

Published 19th January 201820th January 2018 Published in Latest news

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  • London Rivers Week 2026 Photography Competition
    To mark London Rivers Week 2026, Thames21 is launching a photography competition celebrating the vital role that rivers play in the life of our city. The competition aims to highlight the beauty, diversity, and importance of London’s waterways, as well as the people...

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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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