Bachelor Room may be the perfect choice for you. A bachelor apartment is one that combines the bedroom, living room and kitchen (or kitchenette) in the one room unit. Although small in size, it’s a good choice for someone who wants to avoid roommates and save money while living in a city or town. Size of a Bachelor Apartment Most bachelor apartments are somewhere between 250 to 600 square feet. The less square feet, the cheaper the apartment tends to be. In any given city, bachelor apartments are usually the cheapest choice for an apartment home. Sometimes, there will be old hotels that are converted into apartment homes, in which most of the apartments available are bachelor apartments. As such, bachelor apartments are typically the size of an inexpensive, basic hotel room, as a comparison measure for those who haven’t yet checked out bachelor apartments.