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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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Thames River Watch

FatFace shoppers raise £348 for Thames21 via Thanks for Giving campaign

Shoppers at FatFace raised £348 for Thames21 during their Thanks for Giving campaign last November, which was the company’s answer to the Black Friday discount…

Published 22nd March 20178th June 2018 Published in Latest news

New art installation to shine a light on the health of River Thames for London environment charity

Date of release: March 16 2017 An incredible art installation which uses a dazzling display of lights to reflect the health of the River Thames…

Published 16th March 20172nd October 2017 Published in Media Releases

Thames21 welcomes London Assembly’s environment committee investigation into bottled water’s impact on environment

Tomorrow (Wednesday 22 February), the London Assembly’s environment committee meets to begin its investigation into the environmental impact of bottled water in the capital.  The…

Published 21st February 20172nd October 2017 Published in Media Releases

Still water bottles one of the worst plastic pollutants in the River Thames, says Thames River Watch report

As 2,500 single-use plastic bottles are found in just one day, Hugh Fearnley-Whittingstall joins Thames21’s call for a deposit return system. Date of release: 25…

Published 25th January 201716th October 2017 Published in Media Releases
Thames21 honours its volunteers with special celebration and talk from author Tom Bolton

Thames21 honours its volunteers with special celebration and talk from author Tom Bolton

  Thames21 celebrated the ‘exponential impact’ of our volunteers last night at Wapping riverside pub the Prospect of Whitby. Entitled ‘Lost and Found in our…

Published 2nd December 20162nd December 2016 Published in Latest news

How Thames21 has helped me share my passion

My name is Sam Tonge and I am the Project Leader for Royal Holloway University’s ‘Thames Improvement Team’, a volunteer group that runs in partnership with Thames21….

Published 21st November 201628th February 2022 Published in Blog
Thames21 to receive support from FatFace in Chelsea during Black Friday week

Thames21 to receive support from FatFace in Chelsea during Black Friday week

Date of release: November 17th, 2016 The Chelsea branch of FatFace, the clothing and gifts outlet, has chosen Thames21 as their “Thanks for Giving” charity…

Published 17th November 201618th November 2016 Published in Media Releases
Fight Thames Plastic Scourge by Joining Free Citizen Science Training by Thames21

Fight Thames Plastic Scourge by Joining Free Citizen Science Training by Thames21

Londoners invited to protect their patch of river through new citizen science hubs September 2016, London A new opportunity for Londoners to help the fight-back…

Published 23rd September 2016 Published in Media Releases
Food wrappers – the hidden microplastic!

Food wrappers – the hidden microplastic!

Sewage, microplastics and food packaging are among the top culprits impacting the Thames according to new findings from our Thames River Watch. Thanks to this new…

Published 13th July 201621st July 2016 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...
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    Thames21
    THAMES21

    Address

    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

    Contact us

    Satellite Office

    Satellite Office: 

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

    Contact us


    Registered Charity number: 1103997

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