The rapid population growth and density increase suggest significant redevelopment in the Rosemary District. This likely includes new residential constructions and possible conversions of existing buildings into residential spaces. The area appears to be transforming from a potentially underutilized space to a more populous urban center.

The high population density implies an increasingly urban lifestyle. Residents likely have access to various amenities within walking distance. The area may be attracting young professionals, couples, and small families who value urban conveniences.

To accommodate the growing population, public transportation infrastructure has likely been enhanced. There may be an increased emphasis on walkability and cycling. New businesses and services may have emerged to serve the expanding resident base.

Rapid growth can present challenges, including potential strain on existing infrastructure, changes in community dynamics, and possible increases in property values or rents. Local government and urban planners have likely been involved in managing this growth.

The Rosemary District's transformation reflects broader patterns of urban revitalization and densification observed in many U.S. cities in recent years. It appears to be evolving into a densely populated, dynamic area offering an urban lifestyle within Sarasota.