Open Source
House
Open plans. AI configuration and guidance. Everything you need to design, plan, and build your own home.
The problem
Housing is broken.
The current system is designed for developers and middlemen, not for the people who actually live in the houses.
Overpriced
Developers build expensively and pocket the margins. A family home shouldn't cost a lifetime of debt.
Poor quality
Rushed timelines, cheap materials, hidden corners. Three homes purchased, three disappointments.
Opaque process
Scattered information, biased experts selling their own solutions, no independent guidance.
The approach
Building should be open to everyone.
Open-source plans, AI that helps you configure and understand, and a community that builds together. The core is open. Always.
Open plans
Complete construction documentation, free to download, study, and build from. Reviewed and improved by the community, just like open-source code.
AI assistant
Configure a home that fits your site, budget, and energy goals. Ask about materials, regulations, or next steps. Instant, unbiased guidance whenever you need it.
Community
Builders, engineers, architects, and self-builders sharing experience, reviewing plans, and helping each other. Nobody builds alone.
Guided building
Step-by-step support from AI and community throughout the build. You do the work, we make sure it is done right.
Why open source
The model that changed software.
Now applied to housing.
In the 1990s, a student in Finland shared the source code of his operating system. Anyone could read it, improve it, and redistribute it. That project became Linux — and today it runs most of the internet, every Android phone, and the majority of the world's supercomputers.
The same principle transformed encyclopedias (Wikipedia), web browsers (Firefox, Chromium), programming languages, and entire cloud infrastructures. When knowledge is shared openly, it improves faster and benefits more people.
Construction never had this moment. House plans sit behind expensive licenses. Knowledge is fragmented across biased consultants and closed systems. Every family starts from scratch.
os.house applies the open-source model to housing. We publish complete, production-ready house plans under an open license. A community of builders, engineers, and self-builders reviews, improves, and extends them — just like open-source software.
Don't buy a house.
Build one.
We are building this in the open, together. Join a growing community of self-builders, engineers, architects, and people who believe housing can be better, more transparent, and more affordable.