Yes, construction can take place 7 days/week. Each worker doesn’t work 7 days straight, it’s a combination of crews to staff the jobs.
How do you think so many construction projects get away with Sunday construction? It’s typically the largest of jobs because the owners realize there’s more to gain by being open sooner than is lost to extra GC costs. Every day quiet on the job site is a lost opportunity with interest ticking on their construction loan/no ability to sell the condo or rent the space.
i'm all for it if it's doable! Someone challenge Elon Musk to build it in 2 years. he'll try to do it in 1 and call BdB some names. it'll be epic.