This work presents an innovative integrated project for a floating city designed to address the challenges posed by rising sea levels, particularly in Recife, Brazil. The project encompasses comprehensive naval engineering concepts, with a focus on hydrostatics, hydrodynamics, anchoring, and renewable energies. It draws from a diverse range of sources for the various topics covered and involved sourcing suppliers for the city's components. Additionally, a partnership with Nihon University was established for in-depth structural and hydrodynamic analyses. Using the Oceanix model as a starting point, this research delves deeper into the essential engineering aspects necessary for developing this complex system. The primary focus is on integrating solutions, analyzing technical aspects, and ensuring the sustainability of the floating city. It is noteworthy that this work is open to future enhancements, aiming to conduct economic feasibility analyses and further explore the individual considerations of each component addressed in this document.