AMADOR COUNTY • CALAVERAS COUNTY • MARIPOSA COUNTY • NEVADA COUNTY
Invest in your family and community by building an ADU
MOTHER LODE ADU is here to guide you on your accessory dwelling unit journey, no matter where you are in the process. Download our free Guidebook to learn more.
Mother Lode ADU will guide you on your journey.
Mother Lode ADU is a new partnership between Amador, Calaveras, Mariposa, and Nevada counties created to help homeowners in our region build an ADU.
Building an ADU can be overwhelming. Our resources help you find inspiration, navigate the process, and build your ideal ADU.
What is an Accessory Dwelling Unit?
ADUs are:
- A self-contained residence
- Legally part of the same property
- A unit with a kitchen and bathroom
- A range of sizes
ADUs are not:*
- Homes on wheels
- RVs
- Yurts
- Storage structures
*In most cases – there may be some exceptions in your county, so speak with staff to verify.
Housing Family
Rental income
A home as you age
Property value
Safety
Local support
Tools for Building Your Dream ADU
ADU Guidebook
Step-by-step guide to building an ADU in your County along with helpful tips about finding design inspiration, financing, hiring professionals, and more!
Process At-A-Glance
An overview of the entire ADU process, including important issues and approvals to understand from the start.
ADU Calculator
Provides a rough estimate of costs, fees, and rents and will help you understand how choices can impact your budget over time
ADU Rules
An at-a-glance overview of each County’s ADU standards and rules, with details about size limits, parking, exemptions, and more.
Development Checklists
Learn about requirements for the application and permitting process to make sure you’re prepared.
ADU Plans Gallery
Coming soon!
Compare and select from dozens of pre-existing plans, connect directly with designers, and save time and money building your ADU.
The ADU Process
From your first ADU ideas to setting out the welcome mat, we have everything you need. Follow the links for each phase to get step-by-step details and resources.
The Timeline
Typical ADU projects take 12-24 months from initial conception through construction.
