The May Company Building is one of the anchor tenants of the Westfield Mission Valley shopping center in San Diego, and is an example of modernist architecture.

It was designed by William S. (Bill) Lewis, Jr. for LA-based AC Martin (later of Deems-Lewis), Frank L. Hope & Associates backstopped the project locally.

A large cafe, originally named The Mission Room extends from the second floor on the southern face of the building.

Framed in floor-to-ceiling windows, it provided patrons expansive views of Highway 80 (later Interstate 8), and the hills of south Mission Valley.

[2] A 2015 study by the City of San Diego concluded that the building meets several criteria for qualification for the San Diego Resources register: an example of community development and of an identifiable architectural style (Modern Contemporary architecture of 1955–1965).