The addition of an ADU will benefit you in a number of financial waysnvesting in your property can significantly boost its overall value, while also creating potential income opportunities. You could rent out the space for passive income or list it on AirBnB for consistent or occasional earnings. Additionally, downsizing into the space and renting out your larger home at a higher rate can increase your financial returns. This could also be the perfect stepping stone to start building a real estate investment portfolio.