The closure and transfer of the lands of Roosevelt Roads, has long presented an untapped potential of a scale and scope that could undoubtedly reshape the economic and social reality of the municipalities of the Eastern Region, the Island-Municipalities, and more broadly, Puerto Rico. Following the Local Redevelopment Authority’s initiative of proposing this vast site as a mixed-use world-class destination, the development party is determined and convinced that they can materialize and propel such a future, not only by providing the capital investment necessary to do so, but by thoughtfully conceiving the physical reality that will give way to the rebirth of the Caribbean’s most valuable property. To that effect, the proposed scope of the master development, acknowledges not only the vast economic and real estate potential of these individual sites, but more importantly, the synergetic potential of these zones, as a whole, when finally renewed and activated. In a similar condition to that enjoyed by the former naval base, the myriad natural resources and infrastructural assets allow Roosevelt Roads to exist in virtual self-sufficiency, while simultaneously supplying the region and its periphery with a new economic, social, and cultural center. Zone A (“Urban Corridor”) is proposed as the central urban development of the project, crucial to the long-term success of the naval base redevelopment due to the disposition and consolidation of the most programmatic diversity. Overriding the original suburban planning of the military base, the high-density development put forth by this scheme wishes to concentrate the activity and investment efforts into a vibrant destination and home for thousands of local residents and visitors. This intentionally marked parting from the planning philosophies that have enacted myriad low-density developments and suburban sprawl for decades in Puerto Rico is rooted on several proven and effective planning principles: 1. High-density planning provides a more sustainable framework thanks to the considered and limited use of land and natural resources, cost-effective infrastructural investment, and the viability it presents to alternative modes of transportation. 2. Higher density development helps attract employers to a large workforce base, benefitting from the proximity to this workforce and the diversity of jobs that an urban environment hosts. 3. The lifestyle benefits of high-density communities have been shown to drive up their market value. In addition, the strong sense of community paired with the available neighborhood amenities mean that density and diversity can add value of their own. 4. These denser environments also promote and improve social equity by providing opportunities and a shared social space for groups in all economic levels. Furthermore, societal analyses of mixed-use compact developments note significantly higher patterns of cultural growth, diversity, and social cohesion. Using these principles as a planning framework, and given the wide array of uses compatible with and implicit to the vision of a state-of-the-art development, the master plan for the Urban Corridor is conceived as a high-density layout of commercial facilities, housing, hospitality, maritime transportation, and services that will more than supersede the economic scaffolding formerly provided by the naval operations. While this zone portends to offer the Region and Puerto Rico with a new and diverse urban center, its potential to attract long-term investment will be determined, and thus preceded by the successful development of the specialized marine-industrial offers of Zones B & C, which not only present less challenges for immediate investment and construction, but would also jump-start activity in the base and enhance its image as an exciting destination.