College - Author 1

College of Architecture and Environmental Design

Department - Author 1

City and Regional Planning Department

Degree Name - Author 1

BS in City and Regional Planning



Primary Advisor

Michael Boswell, College of Architecture and Environmental Design, City and Regional Planning Department


This study evaluates the impact of California Senate Bill 684 (SB 684) on housing development in San Luis Obispo. SB 684 aims to streamline the approval process for small-scale residential projects to address the state's housing shortage by promoting affordable housing construction. The aim of this report will be to examine the provisions of SB 684 and evaluate the feasibility of development under it. A general overview of the legislative provisions accompanied by legal context will provide a background to the law. Case studies of small lot development will illustrate design decisions that can be incorporated into new SB 684 ordinances and development. After these preceding chapters, the City of San Luis Obispo, a city of about 48,000 residents, will be used to evaluate the tangible effects of the bill. A geospatial analysis using ArcGIS will calculate the number of new housing units that could realistically be created under SB 684, and identify the areas SB 684 are applicable to the City. Using this analysis as a basis for identifying applicable sites, there will be a simulation of two potential developments based on the provisions of SB 684.