For more than 100 years, the Utah Pantages Theatre has stood on Salt Lake City’s 100 South block of Main Street—no longer a city block, but a chopping block for the Utah Theatre and neighboring local businesses. This particular axe will likely take the form of a deal between the Redevelopment Agency of Salt Lake City, which owns the land, The Hines Group and The LaSalle Group. On the theater’s resting place, the developers propose building a 31-story glass monolith—another tower of high-rise apartments—which would cannibalize some of the theater’s historic remains for its design a...