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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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        • London Rivers Week 2026 Photography Competition Winners Video
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rivers

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

Lockdown River Resources

We know how much you love your rivers, and how much you’re missing them during lockdown. We’ve been regularly sharing inspiring river-related resources on Facebook, Twitter…

Published 3rd June 202019th January 2021 Published in Blog

Thriving during lockdown: we’ll bring river inspiration to you

We know how much you love your rivers, and how much you’re missing them during this lockdown. Suddenly everyone is appreciating our blue-green spaces like…

Published 5th May 20205th May 2020 Published in Latest news, Thames 21

Coronavirus update: Thames21 statement

  Thames21 statement 26 March 2020   The safety, health and wellbeing of the public, our volunteers and our staff are of paramount importance to…

Published 26th March 202026th March 2020 Published in Latest news, Thames 21

All March, April & May events postponed due to coronavirus

In light of the latest government guidance, Thames21 is postponing all our March, April and May events.  We are working as usual, but not from…

Published 17th March 202023rd March 2020 Published in Latest news

Thames21 provides new technology for communities to help beat flooding

Press Release Residents of four London boroughs provided with cutting edge devices to monitor flood defences London, UK –  21 January 2020: Residents in Enfield,…

Published 13th February 202013th February 2020 Published in Latest news, Media Releases

Thames21 declares a Climate and Ecological Emergency

Today, 20 September 2019 a global climate strike is taking place where everyone is invited to come out to show how much they care about the environment. Children…

Published 20th September 201920th September 2019 Published in Latest news

London Rivers Week showcases the benefits of rewilding rivers

More than 150 people took part in the launch of London Rivers Week in Thamesmead on Saturday 25 May and hundreds got involved in 45…

Published 6th June 2019 Published in Latest news, Thames 21

Call to rewild 100km of London’s rivers to help the city adapt to climate change

Press Release LONDON RIVERS WEEK 2019: Saturday 25 May – Sunday 2 June  London, UK – 15 May 2019: London is the most vulnerable city in western…

Published 15th May 201915th May 2019 Published in Latest news, Media Releases

River Clean-Ups: much more than picking up litter

As the destructive environmental effects of littering and plastic pollution become clear, people are increasingly taking constructive action. More than 17,000 clean-ups took place over…

Published 13th May 20195th June 2019 Published in Blog, Education

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  • Thames21’s response to Thames Water’s pollution incidents
    Recent figures published in The Times have shown that Thames Water was responsible for almost a third of the water sector’s most harmful pollution incidents in 2025. A Thames21 spokesman said: “The scale of serious pollution incidents linked to Thames Water is deeply...

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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: 

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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