The Robson Historic District in Mesa is significant for two reasons. First, it is considered significant under National Register Criterion A in the areas of Community Planning and development for its relationship to broad patterns of community development in Mesa. Second, the Robson Historic District illustrates important examples of architectural styles common in Arizona during the first half of the twentieth century. The Robson Historic District is considered significant under National Register Criterion C for the architectural styles and periods that it represent. The period of significance for the district starts in 1911 with the subdivision of the Pomeroy Place subdivision and continues until 1952, the end of the 50-year period of significance for the National Register.
The Mitten House and Pomeroy House are significant historic homes which have been relocated to the Robson Historic District in order to avoid demolition due to the construction of the Mesa Arts Center.
The Mitten House, previously located at 22 E. 1st Ave., is now located at 238 W. 2nd Street. The new site was chosen based upon its similarity to its historic setting. The Mitten House was the first FHA financed home constructed in Mesa. Built in 1936 as a residence for Charles Mitten, publisher of the Mesa Journal Tribune, the house was built with funds from the FGA program and the Mesa Journal Tribune as a demonstration to help encourage construction for residential buildings in Mesa. The Mitten House was listed on the National Register of Historic Places on December 29, 1988, because of its historical association with a famous person and significant event in Mesa's history.
The Pomeroy House, which was previously located at 27 S. Center Street, has now moved to its new location at 213 N. Morris Street. The Pomeroy House is significant for its architectural style being one of the last Tudor Revival style homes in Mesa. Although the house is not officially designated as a historic landmark, the City will encourage the new owner to work with the City's Historic Preservation Office to pursue local landmark designation. The Pomeroy House is named for Clara C. Pomeroy, the daughter of one of the first families that arrived in Mesa in the late 1800s. Clara is most noted for being the mother of Rollie Pomeroy who owned and operated the Waldorf Club for 30 years, was player-manager of the former City of Mesa baseball team for 20 years, and served many years on the Mesa Planning and Zoning Board.