This publication highlights the research and work of students in the Master of Architecture program’s International Housing Studio (419). Part of the three-semester core sequence for Sam Fox School graduate architecture students, the 419 studio draws from the expertise of Washington University in St. Louis faculty working in different cities around the world to provide students a unique opportunity to engage with—and make connections between—housing design projects in sites across the world. The publication focuses on the 419 studios from 2017-2019, with design projects centered on the following cities: San Juan (Puerto Rico), Halifax, Barcelona, Seattle, Dublin, Berlin, Cagliari (Italy), Santiago de Compostela (Spain). It features examples of student work from each studio, faculty bios, city profiles, and scholarly essays by López and Rivera, Javier García-Germán, and senior lecturer Michael R. Allen.