Density is a unique challenge in L.A. that cannot be addressed by simply building taller, but rather by first questioning the way we make claim to and share the use of land. The line in zoning is codified to create separation rather than opportunity, and prioritizes the dominance of commercial instruments such as streets and property values. Our design transforms the site perimeter from a line of division to a tool that can be shaped towards mutually beneficial relationships – between residents, between neighbors, and between community members. This idea scales up from our immediate site into the neighborhood at large. New types of spatial use occur at these redefined thresholds, which we have named Park Parks, Accessory Community Spaces, and Green Patches.