Old Chicago Pizza, the one and only is now open on the East Side of Petaluma. Old Chicago Pizza Delivery & Takeout is our 2nd location and now open! Now get the best pizza in Petaluma delivered to your door or simply come pick it up. For Petaluma pizza delivery or takeout, give us a call. Experience through authentic deep dish Chicago Style pizza delivered to your door. We are Old Chicago Pizza, over 40 years of great Chicago Style Pizza.