Yes. We prefer to set up in a lawn or grassy area if possible because it is easier to secure the unit but we can set up in a parking lot, driveway, or other hard surface. We will not set up on a gravel driveway. If you have a 2 car width driveway, most likely our inflatable will fit. A slight slope is not a problem. Typically, we will place the entrance of the unit at the top of any slope.