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Thames21

Thames21 starts 2021 with a greener, cleaner van

GPS Marine, a leading marine contractor on the Thames and Medway rivers, revved up 2021 by giving Thames21 a van! Lee McAdam, fleet manager for…

Published 14th January 202115th January 2021 Published in Latest news

Obituary of Celia Hensman MBE: Thames21 founder

Celia Hensman was a woman of great charm and conviction, who used her formidable intelligence to create lasting, positive change for people and the natural…

Published 6th January 20215th February 2021 Published in Latest news

Thames21 volunteering activities update: 7 September

Thames21 StatementSeptember 2020 The safety, health and wellbeing of the public, our volunteers and our staff are of paramount importance to us. Our events and…

Published 17th September 202017th September 2020 Published in Latest news

When jet lag helped save a cygnet

By Helen Stoddard – Thames21 Volunteer Helen Stoddard is part of Thames21’s citizen science army – a Thames River Watch volunteer. She recounts the time…

Published 25th August 202025th August 2020 Published in Blog

New project to open up access to the Thames

Thames21 has received funding from City Bridge Trust to deliver an exciting new project, Thames Connections, which aims to make it easier for communities in low-income neighbourhoods…

Published 17th August 202017th August 2020 Published in Latest news

Obituary of Francis Carnwath: First Chairman of Thames21

 “From time to time you can see there are things that can be made to happen” Francis Carnwath CBE Francis Carnwath CBE applied skills, insight and…

Published 28th July 202028th July 2020 Published in Latest news

Hollywood star Zac Efron joins forces with Thames21 to highlight London’s plastic waste crisis

American actor and singer Zac Efron highlights the huge issue of London’s plastic waste problem as part of a new series on Netflix airing in…

Published 8th July 20206th February 2023 Published in Latest news

Heritage Emergency Fund grant to help us reconnect Londoners with rivers

Thames21 has received a grant from the Heritage Lottery Fund to help it to continue its work throughout and after London’s lockdown. The Heritage Emergency…

Published 18th June 2020 Published in Latest news

Thames21 receives vital COVID-19 funding from the Garfield Weston Foundation

Thames21 has received a grant for core funding from the Garfield Weston Foundation to enable it to continue its work during and after the COVID-19…

Published 10th June 2020 Published in Latest news

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

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  • Thames21 and the River Roding Trust launch water quality monitoring project on the lower Roding
    Environmental charity Thames21 and the River Roding Trust are working together on a groundbreaking programme to identify, test and fix the most damaging sewage and road run-off outfalls on a...
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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

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    Other addresses

    Satellite Office: 

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

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    Welsh Harp Environmental Education Centre:

    Birchen Grove, LONDON NW9 8RY

    Contact us


    Registered Charity number: 1103997

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