@TwinHuey is best placed to identify what elevation limit would apply in this section.
In terms of the site overall, obviously
@Tuscani01 has identified that this is an impact, but my cautious read is that there is enough footprint left, even while not touching the Bay-side heritage to do something workable here. It just wouldn't be the same as it was previously conceived of, which likely means a delay.......
It would also be a highly irregular shape. Which UT'ers would love.....but has impacts on build costs.