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TREO

HOUSE

SUSTAINABILITY

COLLECTIVE LONDON

WE
ARE

A COLLECTIVE OF PEOPLE

WORKING TO CREATE A HEALTHIER, KINDER & FAIRER FUTURE

GATHERING IN AN OLD PICKLE FACTORY IN LONDON

TO LEARN FROM & SUPPORT EACH OTHER

DOING THINGS DIFFERENTLY

WHY
WE
EXIST

WE ARE FALLING SHORT ON SUSTAINABILITY PROGESS

Despite many people giving their time and energy to environmental and social impact work.

BECAUSE THE WORK IS TOUGH

Responding to problems like climate change, nature loss and inequality is highly complex.

LEARNING FROM EACH OTHER IS ESSENTIAL

To be more effective and sustained in our work.

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WHO WE'RE FOR

PEOPLE WORKING ON SOCIAL & ENVIRONMENTAL PROBLEMS

​Including business people, civil servants, researchers, journalists, founders, creatives, consultants and campaigners.

BASED IN LONDON

Who can regularly access our home in Vauxhall, London.

WHO ARE CURIOUS TO LEARN

Open minded to different perspectives, big questions and figuring things out together.

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WHAT WE DO

01.

LEARN FROM
EACH OTHER

No one knows all of the answers to our sustainability problems, but between us we have so many experiences, learnings and ideas to share. 

02.

LOOK AFTER
EACH OTHER

We make sure to look after ourselves and each other so that we can handle it when the work gets tough and for the most part, we enjoy the process.

Through regular, facilitated gatherings, workshops, events and coworking, held in-person at our home in London or out in wild.

​"FEELING QUITE REVITILISED"

"It's a great collection of people and the most authentic and open discussion I’ve had with others about sustainability. Feeling quite revitalised on the topic now."

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DOING IT
DIFFERENTLY

OWNED BY NO ONE, SHARED BY EVERYONE

We have no shareholders and any profit is directly re-invested into the organisation.​

CO-CREATED BY MEMBERS

Members are encouraged to contribute to decisions across all parts of the organisation; from the programme and strategic direction, to the management and pricing structure.

QUALITY CONNECTIONS

We don't measure our success as bums on seats. We know that quality learning comes from smaller groups, personalised experiences and regular interactions.

BRIDGING ACROSS DIVIDES

There is no single correct way to do this work. Treo House brings people together from different backgrounds, facilitating the less-comfortable but crucial conversations.

TREO

Derived from the Old English word for Tree.
Trees are our greatest teachers in
collaboration and collective survival.
And who doesn't want to hang out in a tree house?

CONTACT

gemma@treohouse.com

07440268070

Treo House, Offley Works

Pickle Mews, London, SW9 0FJ

Copyright ⓒ 2026 Treo House CIC

Treo House is a registered Community Interest Company (CIC), limited by guarantee.

Company Number: 16604397 

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