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RESOURCES

Data sources, campaign organisations, and tools to help expose the reality of UK factory farming.

ABOUT THIS SITE

Only Glass Walls is an open-data platform mapping every known intensive animal agriculture facility in the UK — 68,000+ farms, slaughterhouses, and processing plants — alongside live environmental pollution incidents, real-time flood warnings, and a running count of animals killed since you opened the page.

Factory farming depends on secrecy. We're ending that. All data on this site is sourced from UK government registers (Defra, FSA, Environment Agency) and is freely available to the public. We simply make it visible.

CAMPAIGN ORGANISATIONS

These organisations are working to expose and end factory farming, protect UK waterways, and advocate for animals. Support their work.

CAMPAIGN

Project Slingshot

Global network of citizens, designers, investigators, and filmmakers exposing factory farming through data, storytelling, and direct action.

NGO

Compassion in World Farming

Leading farm animal welfare organisation. Campaigns for an end to factory farming through advocacy, corporate engagement, and public education.

NGO

Animal Aid

UK-based animal rights organisation campaigning against all forms of animal abuse, including factory farming, slaughter, and live export.

CAMPAIGN

Viva!

UK vegan campaigning charity that investigates factory farms, exposes conditions, and campaigns for a plant-based food system.

NGO

The Humane League UK

Campaigns to end the abuse of animals raised for food through corporate outreach, grassroots activism, and public pressure.

ENVIRONMENT

Surfers Against Sewage

Environmental charity campaigning against sewage pollution in UK rivers and coastal waters, much of which originates from agricultural runoff.

ENVIRONMENT

River Action

Campaigns to clean up UK rivers polluted by agricultural runoff, sewage, and industrial waste. Focuses on the River Wye and Thames.

ENVIRONMENT

Friends of the Earth

Environmental campaigning organisation. Runs campaigns on factory farming's impact on climate, nature, and water quality.

SHARE THIS SITE

The most powerful thing you can do is share this map. Every person who sees it is one more person who can no longer claim ignorance.

Direct link: https://onlyglasswalls.com

OPEN DATA

All data powering this site is derived from public government sources and is freely available under the Open Government Licence. If you are a journalist, researcher, or campaigner who needs access to the raw dataset, get in touch.

Data last updated: April 2025

68,631 locations · 579 slaughterhouses · 40 live pollution incidents · EA flood warnings refreshed every 5 minutes