My Fall 2020 studio project at Arizona State University. The project proposes a new solution to social housing in Mexico City based on the city's historical connection between housing and tianguis (street markets.) This connection is vital to the local culture and economy, and is critical to upward mobility. The project imagines a literal framework built in underutilized spaces in between, above, and beside the streetscapes that focuses on three core programs - housing, markets and support space. In this framework, one can see the importance of vertical relationships that trace back to historical vecindad housing, self-expansion and its relationship to economic mobility, and the importance of ownership and how we might see benefits from social organization and co-ownership models.