In Sonoma County, home prices have increased significantly and, for new workers in the County's expanding employment base, finding housing that is affordable has become increasingly difficult. A coalition of the nine cities in the County and the County government commissioned EPS to conduct a study of the nexus between employment and housing, and to propose a countywide approach to the affordable-housing shortage. This study involved an evaluation of the employment and commuting patterns trends in Sonoma County, the income distribution among future jobs in the County, the costs to build and to acquire market rate and affordable housing, and the various programs currently in place to address housing affordability issues. EPS established the relationship between employment growth and housing prices, and recommended an impact fee that assigns some of the financial costs of developing affordable housing back to the employers whose expansion contributes to housing demand.