A four-part vertical structure: the reefbase root-foundations, the hull with integrated storage and systems, the elevated gangway, and the microhome cabin above for human habitation. The reefbase is both a stabilizing element and an ecological catalyst, fostering coral growth and habitats. The hull, inspired by boat design, provides below-floor storage, maximizing compact living efficiency. The gangway spirals upward, integrating vertical planters and tidal-adaptive joints. The cabin, lifted above flood levels, offers panoramic views while maintaining passive ventilation and energy efficiency.