This is a very nice perspective illustrating the recessed stormwater detention facility, located within the courtyard of the single family attached housing units, located in the southeast corner of the site. After reviewing this drawing, I believe this space has been designed to attract people, and therefore promote a strong sense of community.
The purpose of this perspective was to show how the parking for the single family detached housing units was resolved through the design. As seen here, each unit has two paved spaces and one overflow space with a grasspave surface, instead of the paving. This design feature helps break up the monotony of a continuous parking lot while maintaining the benefits of a larger, box style parking lot design.