The San Mateo County Home for All Initiative launched a Second Unit Resources Center to their website. This website has information for homeowners considering adding a second unit to their home and includes resources specific to each city in San Mateo County. There is a calculator for assessing the investment costs of adding a second unit, as well as an idea book featuring case studies and floor plan ideas. Click here to learn more! This is an incredible local resource to support expansion of second units that can serve to increase housing stock and provide more affordable options for the many struggling renters, as well as increased income for homeowners.