Search sources such as LoopNet to find leasing opportunities.
Before you sign a lease or purchase a commercial building, contact the Planning Division at 707-543-3200 to be sure that your business is allowed in the zone or area you've selected. The Planning Division can tell you if your business meets the zoning requirements and whether you need any other type of City review or permit, such as a Design Review or Use Permit.
Additionally, the Planning Division has information about signage and parking requirements that may apply to your business and location. Remember that home-based businesses also need to check on zoning! The Planning Division is located in room 3, City Hall, 100 Santa Rosa Avenue.