On file with the Community Development Department of the City and made a part of this comprehensive plan amendment and rezoning approval, for concept description and delineation is the sketch plan document dated December 18, 1979 with amendment thereto dated June 2, 1980. Said amendment represents a change in street alignment and a reduction in the total number of proposed housing units. That plan presentation, including the location and nature of each unit type shall form the basis of the approval. It is recognized that minor shifts or realignments of roadways and units may be necessary and compatible with the need to acquire workable street patterns, grades, and suitable drainage or utility solutions, but the general plan layout including the relationship of each unit type to the general plan framework, and traffic and open space layout, shall be used as the implementation guide. (Ord. 656, 6-2-1980)