Del. Code tit. 9 § 4907
The Zoning Commission shall make, as promptly as possible, for certification to the county government, a zoning plan or plans, including both the full text of the zoning regulation or regulations and the maps, and representing the recommendations of the Zoning Commission for the regulation by districts or zones of the location, height, bulk, and size of buildings and other structures, percentage of lot which may be occupied, the size of lots, courts, and other open spaces, the density and distribution of population, for the location and use of buildings and structures for trade, industry, residence, recreation, public activities or other purposes, and for the uses of land for trade, industry, recreation, public activities, soil conservation, water supply conservation or other similar purposes.
9 Del. C. § 4907