This article is the fourth in a series exploring diversity in housing in South Korea. --Ed. In Korea, presale of apartments prevails, meaning home buyers base their purchases on model houses and blueprints. Apartment units of a certain size generally have similar floorplans and buyers have an idea of what they will look like when completed. Construction companies, which are also developers in most cases, sell apartment units that are considered investments as well as dwellings. The hope is that