Quality housing is an essential need of the people as the government consistently ensures the accessibility to quality affordable housing. The current issue encountered a mismatch of demand and supply of affordable housing for medium-income groups with affordable housing prices. The development of space design standards for affordable housing throughout Malaysia’s housing plan in Kuala Lumpur provides an opportunity to study the evolution and satisfaction of occupants related to medium–cost housing. With the constant provision of medium–cost housing, the issue of the adequacy of space design standards to satisfy the needs of occupants arises. This paper intends to carry out the study of space design criteria for affordable housing in Klang Valley.