To create the California Inclusionary Housing Policy Database, we did the following:

1. Developed a list of California cities and counties with Inclusionary Housing (IH) policies, based on a survey conducted in cooperation with Non-Profit Housing (the Non-Profit Housing Association of Northern California). The survey was sent to 530 jurisdictions, and asked if the jurisdiction had an Inclusionary Housing (IH) policy; 424 of the jurisdictions responded, 169 respondants reported having an IH policy. One more jurisdiction passed an IH policy three months later.
2. Collected policies from jurisdictions, both from local governments and their websites. Initially, Policies for 134 jurisdictions were collected.
3. Identified key policy criteria and jurisdiction descriptors to summarize policies.
4. Examined electronic copies of policies by hand, one by one; they catalogued them according to the criteria we developed, and entered them into the web-based database.
5. Used the 2005 population estimates from the California Department of Finance (E-5 Population and Housing Estimates).
6. Used the California Integrated Waste Management's jurisdiction profiles to find areas (http://www.ciwmb.ca.gov/profiles/Juris/).
7. Downloaded building permit data was from the SOCDS database (http://socds.huduser.org/permits/), which at the time (May 2007) contained data from 1980 through 2006 (some jurisdictions are missing data for some years). Data was organized and graphed using Excel.
8. Conducted a joint survey with NPH (our "2005 Production Survey," attached) of the 169 jurisdictions that reported having an IH policy on the quantity of inclusionary housing produced between 1999 and 2006; the survey was conducted in May through July of 2006. We recieved 91 responses. Follow-up calls were made to clarify responses.