Before you decide whether to lease office space or to work from home, you have to determine exactly what your facility needs will be. In some cases, your facility needs will be such that you'll have to lease office space. In other cases, your facility needs may be minimal and you can work from home. If you have a choice, and all things are otherwise equal, you should probably work from home, primarily because (1) it's a lot cheaper than renting office space and (2) you have less to lose if your business fails.