Project cooperation
Geometry-led Circular Architectural Techniques enabling modular, reconfigurable housing through adaptive reuse of brownfield spaces.
Author
CEO & Representative at 4 Earth 2 Mars Holding B.V.
Rotterdam, Netherlands
Omid Hajishirmohammadi
CEO & Representative
4 Earth 2 Mars Holding B.V.
Rotterdam, Netherlands
3 profile visitsSustainable/circular solution provider
Founder of 4 Earth 2 Mars, developing CATs&DOG®: modular circular buildings for Earth & Moon. Proposal submitted to ESA & EIC Pathfinder with EU-UK consortium.
My organisation
4 Earth 2 Mars is leading the development of CATs&DOG®, a modular and circular building system designed for reconfigurable construction in extreme environments—on Earth and the Moon. Backed by Autodesk Foundation, EIT Climate-KIC, Rabobank, and supported by ESA, our EU–UK consortium has submitted proposals to both EIC Pathfinder Challenge 2025 and ESA OSIP. We are alumni of: Berkeley Lab IMPEL Accelerator (2021) EIT ClimAccelerator – Circular Built Environment (2023) SBIC Soft Landing Program (2024) Our flagship initiative—Analog Circular BlueMoon Village—has secured two launching customers and demonstrates a €40M+ market opportunity, even at early TRL. Designed as both a tech demonstrator and modular village, the system is attracting attention from Earth-focused and space-focused partners alike. CATs&DOG® combines: AI-optimized design software (using Earth Observation Data) Mobile production units for local fabrication DIY building systems for affordable housing Robotic deployment systems for lunar applications We are now seeking partners in AI, robotics, circular materials, space architecture, structural testing, and policy/funding support to co-develop TRL 2–4 prototypes and advance to TRL 5–7 with ESA and commercial partners. If you're ready to build the future—modular, circular, and Moon-ready—get in touch. 👉 Curious how our mission is built—step by step, brick by brick, with cross-border, cross-sector partners? 📬 Read our newsletter on LinkedIn 🎥 Prefer watching? Explore our short videos on YouTube 🤝 Up for a quick exploration talk? Schedule a 15-minute intro call here
About me
I am not just building structures—I’m designing systems that learn, adapt, and endure. My work is grounded in the belief that architecture must evolve from permanence to possibility—from static objects to living systems shaped by collaboration, environment, and time.
After rebuilding homes post-earthquake as a student, I learned that resilience is not about rebuilding what was lost, but building what’s needed next. That idea never left me. It became the foundation for a life’s work focused on rethinking how we build—not just the materials or the methods, but the mindsets behind them.
As a solo founder, I’ve spent the last decade not only developing modular systems like CATs&DOG®, but also holding space for radical collaboration across borders, disciplines, and even planets. Whether through circular geometries or open-source deployment logic, my question is always: How can we make building more human, more adaptable, and more future-ready?
I work best when bridging contradictions: precision and poetry, lunar dust and urban slums, vision and execution. I’m driven not by what is, but by what could be—if we dare to build differently.
If you're looking for someone who sees design as diplomacy, infrastructure as invitation, and architecture as a conversation across time and scale—then we’re already speaking the same language.
👉 To learn more about my journey, vision, and background, visit: www.4earth2mars.com/omid-hajishirmohammadi
Skills
- Sustainable Architecture
- Modular Design
- Systems thinking
- Innovation Strategy
- Cross-sector collaboration
- Design for Extreme Environments
- Space Architecture
- impact entrepreneurship
- Regenerative Design
- Affordable Housing Innovation
- circular construction
Interests
- circular economy
- SDGs
- Efficiency
- Sufficiency
- affordable housing
- Space Habitats
- Cross-border collaboration
- climate innovation
- digital fabrication
- Radical System Change
- public-private partnerships
- social impact
- Bio-based materials
- Earth & Space Synergies
- Future of Housing
Marketplace (2)
Partnership
CATs&DOG® stands for Circular Architectural Techniques by Design, Origami, and Geometry, enabling efficient and reconfigurable construction.
AuthorCEO & Representative at 4 Earth 2 Mars Holding B.V.
Rotterdam, Netherlands