The term "affordable units" refers to housing that is priced within reach for people with moderate or low income. These are typically rental apartments, condos or townhomes that have been designated as affordable due to their cost relative to the local market rate. The price of these units is usually set at a level that is below what most people in the area can afford on their own, making it possible for them to live in a decent and safe housing without spending more than 30% of their income on rent or mortgage payments. In some cases, affordable units may also be subsidized by government programs that help reduce the cost even further for low-income households.