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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

Why are wetlands so important?

By Joanna Barton – Assistant River Cray Project Officer at Thames21 As an island nation with a wealth of rivers, canals and streams snaking through…

Published 29th January 201629th September 2017 Published in Blog
River of Death, why fish died in the River Lea, and what can be done

River of Death, why fish died in the River Lea, and what can be done

Thousands of fish died in the River Lea last week after rain washed the accumulated pollution from East London’s roads into the river. The River Lea…

Published 27th July 201319th November 2015 Published in Blog, Latest news, Love the Lea, Sewage pollution, Sustainable drainage
Saving North East London’s rivers

Saving North East London’s rivers

These are exciting times for river friendly drainage. Our project to clean polluted water before it enters the Salmons Brook in Enfield is identifying sites,…

Published 2nd February 201330th April 2013 Published in Blog, Latest news, Love the Lea, Sewage pollution

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Latest News

  • Rare wildlife discovered in River Ching and River Lea surveys led by local communities
    Environmental charity Thames21 has funded a survey revealing a diverse range of wildlife in the River Ching, including the critically endangered European eel and the unusual Peach Blossom jellyfish. The findings also highlight evidence of wastewater pollution and barriers that restrict fish movement....

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Upcoming Events

Dec 1
10:30 am - 12:00 pm

Winter Sketch & Stroll – Salmons Brook Restore & Reconnect

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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

Welsh Harp Centre

Welsh Harp Environmental Education Centre: 

Birchen Grove,
LONDON NW9 8RY

Contact us


Registered Charity number: 1103997

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