Modular living for Mouse may be more accurate. This proposal is a response to the BeeBreeder's San Francisco Affordable Housing competition. The brief had no particular site nor size requirements, but asked architects to propose a schematic response to San Francisco's affordable housing shortage that requires minimal land and can be applied in a variety of locations. Rather than proposing different module types defined by room count or lifestyle, this project explores the potential of defining modules by the operations that make a home, namely: the entry operation, connecting operation, and the shelter operation. These modules are easily connected and customized with conditional accessories, i.e., accessories to close off modules, to add a window, or to add a "hearth". The possibilities are endless and easy to customize for a variety of lifestyles. At a larger scale, the modules are sandwiched between an open space above for residents and public space below with space for retail, grocery, childcare, etc. The formalization of the modules are inspired by the paintings of a local artist named Muzae Sesay. Additionally, this proposal includes a map of no-fault evictions in 2019 per neighborhood, and vacant lots for potential sites to build affordable housing.