ADU (Accessory Dwelling Unit)

[Jaafar Mirlohi]

Does anyone have experience with building an ADU (accessory dwelling unit) on a property ?

Here is some back story on the situation. This property is located in the Sacramento area and there is an existing triplex already on the property that would be staying.

Bonus if you’ve done this in the Sacramento region and/or have contacts for companies and individuals who can help me achieve this. Thanks so much!