Exterior Elevation: Submit elevations of all sides of the building. Go to ePermits Center at epermits.cccounty.Submit your online building permit application here. Central San Permit Counter staff provide sewer work permit issuance, plan review, project fee quote, permit history and easement research services. If your lot is in California's Contra Costa County, then this procedure will work for you. No building or structure permitted in the O-1 district shall exceed two and one-half stories or thirty-five feet in height. (Ord. 1883: prior code § 8157.5(f)). ▻ Focused and ambitious actions are taken to reduce greenhouse gas emissions, improve community resilience, and adapt equitably to a changing climate.