Hey Karl,
I was trying to avoid being too specific for fear that no one would answer. 😉
In my experience it takes a week or two to get backgrounds prepared for the engineers (dimensioned floor plan, rcp, roof plan, bldg sections, site plan). We continue to work on the remainder while the engineers begin. The engineers take 3 weeks to complete 90%. Then we all print, review, coordinate for a week followed by another week for corrections ending in the 100% complete set of documents. That's 7 weeks in a best case scenario, but normally there will be owner changes or other roadblocks that would increase the schedule.
Anyway, that is for a 5,000 sf branch bank like we might normally do.
Slab on grade w/ masonry veneer exterior walls
Lobby space
3-5 offices + conference room
Teller & employee work areas
Break room
2 Restrooms
Storage room/Janitor closet
Tel/LAN room
Elec room
HVAC within the plenum (no mech room)
Vault