The community must have a master or general community plan adopted by the planning commission or the legislative body, and in either case the plan must include at least the following:

(1)  A land use plan which designates the proposed general distribution and general location and extent of the uses of the land for housing, business, industry, recreation, education, public buildings and grounds, and other categories of public and private uses of land.

(2)  The general location and extent of existing and proposed major thoroughfares.

(3)  A statement of the standards of population density and building intensity recommended in and for the various districts and other territorial units, together with estimates of future population growth, in the territory covered by the plan, all correlated with the land use plan.

(4)  A description of the area or areas in which blighted and substandard conditions are found and recommendations as to the area or areas which should be designated for redevelopment.