[Hamilton]

As chris said, 331 Marin and 351 Marin are governed by the Morgan-Grove-Marin Redevelopment Plan.

The southern site, 331 Marin Blvd, is governed by Section VII sub-section K of the plan, which says it can go to 400 feet. I believe that includes mechanicals on the rooftop, though not sure. That would allow up 44 stories, since the minimum floor-to-ceiling height specified in the redevelopment plan is 9 feet. In practice it looks to be 41 stories + mechanicals in both the new and the old rendering. That's a ceiling height of about 9.5 feet.

The northern site, 351, is governed by Section VIII sub-section L. Paragraph 4 of the sub-section says that the maximum total permitted height here is 395 feet (375ft+ 20ft set back from the rest). In theory, 395 feet allows up to 43 stories. In practice it looks to be 39 stories + mechanicals.