Why would you buy a home with a business attached to it on the ground floor? Yes, you will need business owner's insurance because this is not an attached residential home. Homeowners insurance is for residential properties - not attached to a business. If you do not own the liquor store, it will be difficult to sell your home in the future. Buyers will need to buy the store + the home otherwise you won't find it easy to just sell your portion of the home.