Consulting giant PwC just signed a lease for approximately 200,000sf at 405 Howard St, one of the four constituent buildings of Foundry Square in the South Financial District. This is a big move south for PwC, whose current offices are located at 3 Embarcadero Center, and it reflects the shifting center of gravity of tenant demand in SF. PwC’s offices will be spread over three full floors formerly occupied by Fitbit, Orrick, Opendoor, WSP and others. With available blocks over 100,000sf dwindling at a rapid pace, this deal is likely to send other large tenants in the market (e.g. Google, DoorDash, Affirm and others) scrambling to secure space before the few remaining options disappear.