This document analyzes zoning options for a property site located at South Lasalle, West Monroe, and South Wells in Chicago. It examines two options - Option A which includes both Parcel 1 and Parcel 2, and Option B which includes only Parcel 1. For each option, it provides details on zoning district, site area, floor area ratio (F.A.R.), minimum lot area, parking requirements, setback requirements, and height restrictions based on the DC-16 zoning district. It also includes diagrams showing potential massing and programming for residential + office or residential + hotel towers under each option.