Land use: local planning: housing elements.

The Planning and Zoning Law requires a city or county to prepare and adopt a comprehensive, long-term general plan, and requires the general plan to include specified, mandatory elements, including a housing element. That law requires the housing element, in turn, to contain, among other items, an identification and analysis of existing and projected housing needs and a statement of goals, policies, quantified objectives, financial resources, and scheduled programs for the preservation, improvement, and development of housing.