The Sasakawa International Center for Space Architecture (SICSA) is a nonprofit academic research and planning organization at the University of Houston.

It was founded in 1987 after an endowment gift provided by Japanese industrialist Ryōichi Sasakawa.

[4] SICSA's foundations were established by James Calaway, Guillermo Trotti, and Larry Bell after founding private space startups Space Industries Incorporated and Bell & Trotti, Inc.[5][6] Because the idea of private sector space research and development was at the time unheard of, the organization was formally realized by the help of Japan Shipbuilding Industry Foundation Chairman Ryōichi Sasakawa, who provided a $3 million endowment to kick-start the schools programs.

[10] Despite the department's re-location to the Cullen College of Engineering at the University of Houston in 2014, SICSA's facility remains within the Gerald D. Hines College of Architecture's main building designed by Philip Johnson.

[11][12] The School was founded in Houston because of its proximity to NASA's Johnson Space Center and other aerospace industries.