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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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River Thames

4,500 wet wipes found in one patch of Thames foreshore

Shock findings reveal that the Thames has the highest concentration of wet wipes ever recorded in Britain – with 277 found in just one square metre. Over 4,500…

Published 10th April 20176th February 2023 Published in Latest news

Thames21 supports Government’s National Litter Strategy for England

Date of release: April 10, 2017 In response to the Government’s new Litter Strategy for England, published today, Debbie Leach, chief executive of Thames21, said:…

Published 10th April 20172nd October 2017 Published in Media Releases

Largest citizen science Thames event of the year will measure hidden plastic menace

Large mounds are changing the shape of the Thames foreshore. On April 1, the day before the Boat Race, the public will help measure how much…

Published 23rd March 20172nd October 2017 Published in Media Releases

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

Record volunteer turnout on the Ravensbourne

The largest number of volunteers Thames21 has ever had for a single day clean-up on any stretch of the Ravensbourne turned out at Manor Park,…

Published 21st March 201729th September 2017 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 volunteers embrace Great British Spring Clean

Hundreds of volunteers helped Thames21 at eight events the charity put on for the Great British Spring Clean last weekend, starting with 50 people who…

Published 6th March 201713th January 2022 Published in Latest news

Thames21 data features on London TV as London Assembly investigates impact of plastic bottles

This Wednesday was an even busier one than usual for Thames21. We were interviewed by both London Live and BBC London about the huge problem…

Published 24th February 20178th June 2018 Published in Latest news

Thames21 embraces Great British Spring Clean with 11 events on rivers across London

Date of release: Friday February 24 Londoners across the capital will don wellies and waders to spring-clean London’s rivers with Thames21 as part of the…

Published 24th February 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

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  • Five-year action plan launched to improve the River Thames and its tributaries from Maidenhead to Teddington 
    Environmental charity Thames21 and its partners have launched the Maidenhead to Teddington Catchment Action Plan 2026–2031 – a collaborative plan setting out an ambitious vision to restore the Thames and its tributaries between Maidenhead and Teddington. Developed through the Catchment Based Approach (CaBA),...

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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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