The walls are up, but the roof is still a work in progress. Estimated completion date: never.
Digging the foundation is a real thing. We're using a combination of manual labor, heavy machinery, and prayers to the construction gods.
Proceed to Subphase A-1 B-2: Caissons
Or, if you're feeling adventurous, head to Subphase A-1 B-3: Electrical
Warning: The construction site is a hazard to all who enter. Prolonged exposure may lead to permanent damage to your sanity.