I’m celebrating the graduates in my Senior Projects class at Cal Poly Pomona Department of Urban & Regional Planning! Today we big up this researcher:
Will ADU Resources Expedite Implementation?
By: Victor Rosales
Abstract: In the City of La Habra, California, there was not enough Accessory Dwelling Units (ADUs) being built to address the housing crisis. One of the main obstacles was a lack of ADU resources and materials available to the public. While the city’s municipal code is accessible for public review, a large portion of the community does not understand how to interpret zoning codes or how codes apply to individual projects.
With this understanding of the problem, I worked with city staff on creating supplemental ADU materials, with the intended goal of increasing the amount of ADUs built within city limits. In 2021, the city’s Senior Building Official created an ADU Summary handout with basic outlines of development standards and simple graphic aides. This newly introduced resource, along with the assistance and communication from staff to the community, resulted in an upsurge in ADU plan check submittals and new construction. City staff tracked the progression of these newly built ADUs though paid plan checks, Certificate of Occupancy, surveys, and California Department of Housing credit logs. The data showed an increased number of ADUs constructed in the last 6 months of 2021, which correlated with the timing of the implementation of the ADU Summary. By providing supplemental materials for ADUs, the City of La Habra was able to increase the amount of ADUs built in their community in 2021. Additionally, staff revised and enhanced these readily available resources to support ADU development. As a result, the amount of plan check submissions has nearly tripled in the first six months of 2022.
Upon studying the City of La Habra’s approach to ADUs, I offer several policy recommendations for resources and information that support expediting ADU implementation in cities.
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