Healthcare may not seem like a commercial business, but many hospitals and clinics are commercial enterprises aimed at earning money and serving customers, which in healthcare are called patients. Because of this, healthcare facilities are considered a type of commercial building. This can range from large hospital campuses to small clinics. The larger hospital buildings are usually owned by the hospital owners and custom-built for their needs, while small clinics might be found in their own small building or a multi-use building that they lease a space in.