The major attibute of modern architecture are Literal Transparency and Phenomenal Transparency. C.
Rowe and R. Slutzky classified those two and also stipulated simultaneity of space between matters and
there attibutes. Under the name of Purism, Le Corbusier and Amedee. Ozenfant were in succession to
phenomenal transparency of cubism and they did conversational work with purity rather than realization of
the form of the matter. Conversational tendency effected his activity during earlier period architecture and
helped him to create various spaces but materials and forms changed in his later period architecture which
aroused the question if succession of transparency and purism worked well. So, this study of spacial
simultaneity and comparison of Maison Jaoul and Maison Garche helped to find possibility of spacial
distinction and consistency and understand his principal of architecture. As a result, it was found out that
both of maison used simultaneity of vertical plane to interpenetrate and lead the flow to establish the order,
and used simultaneity of horizontal plane to share simultaneity and ambiguousness of depth that form phenomenal transparency.