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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

Thames21 responds to Mayor’s draft Environment Strategy

Thames21 issued a formal response to the London Mayor’s new Draft Environmental Plan, a strategy for tackling the challenges facing London, and for ensuring our…

Published 15th December 2017 Published in Latest news

Faulty drains threaten Thames water quality

Date of Release: Wednesday 6 December 2017 Londoners urged to check plumbing as signs of contamination found in almost one-third of outfalls across capital Raw…

Published 6th December 2017 Published in Media Releases

Thames21 celebrates its volunteers at annual reception

“Corporate volunteering is about community action not just sponsorship” a key Thames21 partner told the charity’s annual reception on Thursday evening. Clyde Muir, Vice President,…

Published 13th October 201729th November 2020 Published in Latest news
Big Bottle Count September 2017

More than 4,000 plastic bottles removed from River Thames in one afternoon

  More than 4,000 plastic bottles were removed from the River Thames last Saturday as part of Thames21’s annual Big Bottle Count.  Approximately 200 Londoners…

Published 11th September 2017 Published in Latest news

The Great River Rescue is coming – and you’re invited!

Register to clean up your local river in October’s country-wide clean-up of our rivers Date of release: August 30, 2017   The public is invited…

Published 30th August 201716th October 2017 Published in Media Releases

Hugh Fearnley-Whittingstall backs new Thames21 campaign to investigate problem of single-use plastic glasses on Thames foreshore

Date of release: August 14 2017 A campaign to encourage pubs along the Thames to use more washable plastic glasses rather than single-use plastic glasses has…

Published 16th August 201716th October 2017 Published in Media Releases

Waterways Charity Thames21 Recruits Industry Heavyweights to Board

Date of Release: July 7, 2017 Martin Baggs and Peter Gerstrom appointed as Trustees Martin  Baggs, former CEO of Thames Water, and Peter Gerstrom, former…

Published 7th August 201716th October 2017 Published in Media Releases
volunteers

Volunteering with Thames21 has given me life-changing skills

Sam Tonge is a recent graduate of Royal Holloway, University of London with a Bachelor’s of Science in Geography. During is studies he volunteered with…

Published 18th July 201716th October 2017 Published in Blog

Huge new green space for Harrow: Stanmore Marsh Wetlands officially opens after restoration

Free fun community activities on June 28 as part of London Rivers Week Date of release: June 16 EVENT DATE: Wednesday June 28 2pm-3.30pm Stanmore…

Published 19th June 20178th June 2018 Published in Media Releases

Flagship Welsh Harp Centre relaunches with community fun day on June 4

Community Fun Day: 4 June Time: 11-4 pm Location: Birchen Grove, London NW9 8RY A five-hectare nature oasis in north-west London is throwing its doors…

Published 15th May 201716th October 2017 Published in Media Releases

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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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