The Design Review Board reviews new Tier II developments and major Tier III renovations of existing properties in the San Pablo Specific Plan area. They serve as the appeal hearing body for administrative Tier I design review actions and make recommendations to the Planning Commission regarding Tier IV projects located in the Plan area. They also have final design authority for new residential developments, from duplexes to multi-family units outside of the Plan area. Their purview includes the consideration of the proposed architecture, site layout, landscaping as well as master sign programs for the purpose of encouraging quality design. In this role, they work collaboratively with applicants to refine their projects in terms of materials, finishes and landscaping. Finally, they are the approving authority for necessary environmental documentation required by the California Environmental Review Act (CEQA) related to projects under their review.