Houses built in Benin, Nigeria has undergone evolutionary process from the traditional courtyard house to contemporary house type which is rather western style, but have spaces that respond to cultural needs. The morphology of the architectural designs illustrates a house space separated into quarters and sections revealing depth, segregation, controls and levels that explain the design in relation to culture and lifestyles of folks. The structure of domestic spaces resulting in evolution of house typologies in Benin can be traceable to economic, cultural, religious and social factors affecting the residents. The paper however examined evolving house types in Benin in order to identify factors responsible for evolution of spaces in house typologies. The result of the finding revealed that both the attitudinal questions solicited and responses elicited was analysed using factor analysis, ultimately the factors responsible for evolution of house typologies were identified.