Living Off the Grid in the City Radio Show. Tiny homes can be very beneficial to many people, but they do have their disadvantages too. If you buy or rent a new tiny home, they may not save you money as compared to old existing homes. The space limitations may be a deal breaker for many. And if you build, these may be costly to bring up to local building code. Tiny homes may be a good choice if you have a plot of land in an area with relaxed building requirements and good privacy.