To preserve the historic appearance and value of Pomona's designated historic landmarks and structures within preservation districts, property owners must obtain a Certificate of Appropriateness (COA) before undertaking any major alteration projects that require a building permit. The city's planning division will provide property owners with brochures indicating which project are considered major alterations.
Applications for a COA can be filed with the planning division. Each application should be accompanied by plans and specifications, including drawings that show the relationship of the proposed project to surrounding historic structures and properties. Applications for major alterations are reviewed by the Historic Preservation Commission.