(1)   Purpose.
The SP-INS, Institutional (Special Purpose) district is intended to encourage the development of institutional uses, commercially-related facilities to service the institutional complex and area, and certain other nonresidential uses in accordance with an approved master plan, subject to certain limitations on the type of use and certain requirements for total area, gross floor area, percentage of land coverage, setbacks, off-street parking, off-street loading spaces, and signs.