We make building modular ADUs in California easy
Our modular ADUs provide livable space, rental income, or multigenerational housing, all without the long build time.
THE JAY
SEBASTOPOL, SONOMA COUNTY
MODULAR ADU (Accessory Dwelling Unit)
1,183 Square Feet
3 Bedrooms
2 Bathrooms
1 Stories
2 Modular Sections
Year Built: 2025
Essential Details
Steps to Build an ADU
Check out our FAQ page read more in-depth answers to the most commonly asked questions about modular homes.
Step 1:
Secure Land
Having a property is usually the first step in building your dream home.
Without land, it is hard to choose a home model or determine what the balance of your budget for building is.
Step 2:
Modular Feasibility Study
This is where one of us comes out to meet you at the property and determine what size modules can be delivered.
There is a fee for this service but it’s a credit on the price of the home.
Step 3:
Choose Home Model
We now know what size modules can be delivered. You can choose a home model that meets your requirements. Start with the smallest one you will consider and work your way up to your dream home.
More detailed info about building an ADU
Check out our Modular Steps to Building page for more detailed information about building a home in Sonoma County.
Step 4:
Working on Plans
This is where you start working with us on the plans for your Factory Built Home (Modular).
There are costs involved in the modular home plans but they are a credit on the price of the home.
Step 5:
On-Site Pans
You will needs some plans for the on-site portion of the project:
Topographical Survey
Civil Engineered Site Plans
Soils Report
Foundation Plans, etc.
Step 6:
Permitting
Now that your plans are completed it is time for submission. We have an Optional Permitting Service or we can introduce you to someone to help you.
Expect plan check revisions, rarely do plans get approved on the first or second submission.
Home Floor Plans & Pictures to Review
Take a look at hundreds and hundreds of images and floor plans of our homes. Your home can look exactly how you want it, you are only limited by your imagination & budget.
Step 7:
Contractor Interviews
We do know a few General Building Contractors that we can introduce you to. They are familiar with modular home and can certainly help you.
Sometimes though you may have a qualified local contractor you’d like to work with, this is also your decision to make.
Step 8:
Modular Home Delivery & Set
This is one of the most exciting parts of building a modular home. You get to see all of your hard work being delivered to your property.
You get to sit back, take pictures, and watch the show.
Then you get to walk through your house!!!
Step 9:
Completion of Modular
Your General Contractor will work to secure the modules to the foundation, connect the cross-overs, finish whatever on-site work there is, etc..
From there, the City/County will review and provide your Certificate of Occupancy. Time to move into your dream home!
Congratulations!!!
