NAA Neighborhood Active Adult Overlay District. The purpose of the NAA Neighborhood Active Adult Overlay District is to guide redevelopment of areas within the R-1 Residential Conservation District in accordance with the findings, recommendations, goals, objectives, design guidelines and themes, policies, and purposes of the Upper Southampton Township Comprehensive Plan which formed the basis for this Neighborhood Active Adult Overlay District. "In order to encourage and promote creative and flexible development, redevelopment and revitalization of Upper Southampton Township in conjunction with preservation of open space and the conservation and enhancement of existing natural features such as wooded areas, stream valleys, flood plains, scenic vistas, surface and underground water supplies, areas for outdoor recreation and the like so as to promote and protect the health, safety and general welfare of the citizens of the Township and surrounding/adjacent communities while enhancing the economic stability of the Township by promoting the attractiveness, convenience and stability of this Region."