If anyone is considering building an Accessory Dwelling Unit (also known as mother-in-law units, granny flats, secondary dwelling units, etc) the resources listed are an excellent place to start. You can also contact me to brainstorm the pros and cons of such an investment.
- https://secondunitcentersmc.org/ – San Mateo County
- https://napasonomaadu.org/ – Napa Sonoma
- https://www.mas.la/affordable-adus – Los Angeles