01Future Ocean Cities
Cities of the sea, designed with it.
A worldwide atlas of visionary underwater communities. Filter by region, depth and phase to explore each concept in detail.
Region
Phase
Max depth−70 m
ConceptPrototypePilotDeployment
8 / 8
ATLANTICDeployment
Atlantia
Mid-Atlantic Ridge
Flagship habitat prototype pairing OTEC with a modular resident ring.
- Depth
- −55 m
- Capacity
- 410 res.
- Energy
- OTEC · Wave
- ETA
- 2028
A full-spectrum concept
Every UHMW Ocean city concept covers twelve interdependent domains — engineering, ecology and governance treated as one system.
- Concept overviewLong-term underwater residency
- Population capacity80 – 500 residents per phase
- Construction phasesModular assembly, 3-year cycles
- Renewable energyTidal · OTEC · wave · hydrogen
- Water recyclingClosed-loop, 98% recovery
- Food productionVertical marine agriculture
- HealthcareHyperbaric + telemedicine
- TransportationPersonal submersibles, mag-rail
- GovernanceMarine trust + international law
- BiodiversityHabitat integrates reef nursery
- Digital twinReal-time simulation of every subsystem
- EmergencyMulti-vector evacuation to surface