The study was sponsored by the California Business, Transportation, and Housing Agency, which is directed by Secretary Sunne Wright McPeak. Extensive assistance and project guidance was provided by the Department of Transportation (Caltrans), represented by Terry Parker, and the Department of Housing and Community Development (HCD), represented by Linda Wheaton. This site was funded by the Federal Highway Administration (FHWA), State Research and Planning Program, and the State of California, Department of Transportation. The authors of this website are responsible for the facts and the accuracy of the data presented. This website does not constitute a standard, specification, or regulation.

This Website inventory is for information purposes only and not a recommendation for reuse. Land use authority and final land use designations are local government responsibilities. Residential parcels that are identified by the criteria for consideration (ratio of value of existing improvements to value of land) may not be appropriate for reuse. Each parcel must be carefully considered by local officials, property owners, residents and neighbors. Special efforts must be made not to displace residents, but rather to provide better and more housing opportunities for the most needy households.

What the study and web site do:

• Describe a new tool, the California Infill Parcel Locator, a web-based, searchable geo-coded parcel inventory to facilitate and promote additional infill housing development.
• Provide a statewide perspective on the potential to address a portion of California's housing need through infill development.
• Provide an analysis of some of the opportunities and limitations of expanding infill housing development potential.
• Provide a theoretical estimate of potential infill development parcels, acreage, and housing development capacity for different regions of the state and statewide.
• Describe a methodology for identifying potential parcels for infill housing development.
• Provide a vehicle and impetus for local governments to provide more housing choices by identifying opportunities to creatively develop small, infill parcels with multifamily and mixed-use developments.
• Make recommendations to the State on policy initiatives to increase infill housing development potential.

• They do not indicate or recommend that specific parcels should or will be developed or redeveloped.
• They do not represent what is currently permitted, allowed, or prohibited by existing zoning or land use standards.
• They do not provide any information about the interest of specific property owners or occupants to develop or redevelop identified parcels.
• They do not represent what will or should be- only a theoretical estimate of development potential to facilitate local efforts to identify and maximize infill housing potential.
• They do not impose any state mandate on local government- rather, it provides a tool for voluntary use by local officials, builders, citizens and property owners.
• They do not obviate the need for more effectively housing California's growing population by all means necessary, including in appropriate greenfield locations.