320 South Clinton is officially no longer a parking lot, as foundation work begins for the Toyoko Inn Chicago.

Stalworth Underground is on site at 320 South Clinton Street in the West Loop, drilling caissons upon which will stand the Toyoko Inn Chicago. A foundation permit was issued by the City of Chicago April 11. That permit shows the general contractor to be Denken USA, Inc., located in the Civic Opera Building at 20 North Wacker Drive, which also happens to be the address of the hotel’s ownership, again according to the permit.

The permit calls for a 24-story hotel, so of course there will be a tower crane. Not unusual lately for the West Loop, but a bit of an oddball in that it will be east of the Kennedy Expressway. We haven’t seen one of those since EMME at 165 North Desplaines, and 625 West Adams.