Our Prefab Modular Homes in Sonoma County, California.

In Sonoma County, CA, we have worked on several projects with incredible clients. From new builds to fire rebuilds, we are honored to have helped our clients build their dream homes.

THE JAY

SEBASTOPOL, SONOMA COUNTY

MODULAR ADU (Accessory Dwelling Unit)

1,183 Square Feet

Outline of a house with a peaked roof and a door in the center.  If you want a prefab modular ADU that is under 1000 SF or a prefab modular home that is just over 2000 SF, or one that is 5000 SF, we can help you here in California.

3 Bedrooms

How many bedrooms are in this California Prefab Modular Home.  Line drawing of a bed with a headboard and pillow.  California Modular Homes. New Home.   Our modular homes can be 1, 2, 3, 4, 5 bedrooms or more.
This is a prefab modular house built for California.  1, 2, or 3 bathrooms.  A bathtub filled with bubbles and what appears to be a shower head pouring water.  Modular Home CA.

2 Bathrooms

1 Stories

2 Modular Sections

Year Built: 2025

Essential Details

FAQs About Building in

Sonoma County

Check out our FAQ page read more in-depth answers to the most commonly asked questions about modular homes.

Are modular homes allowed in Sonoma County?

Yes, absolutely! Wherever a Single Family Residence can be built, Factory Built Housing (Modular) can be built. Both homes are built to the California Building Code, one is built on-site and one the other is built more efficiently and faster in a factory. California State law does not allow any city or county to prevent the building of a Modular home. They also can't impose any additional requirements on a modular home than they would on a site-built home.

Can I custom design my home for Sonoma County?

California Modular Houses is a design oriented company and we design new plans all the time.  We are able to work with you to design any style of home that you desire. We can adapt existing plans from our Plan Collections or work with our designers to create your dream home. Please note that custom designs take longer and cost more in a process that is already complicated.  If you are on a tight budget we actively encourage you to choose a stock plan of ours.

How Do I Get Started?

You can contact us directly here on our Contact Us page. Please let us know about your property and your desires. Let us know what you’re interested in building, if you have a plan in mind, whether you've drawn something up or want to go with one of the plans that we have our web-site.  We are here to help make the building process easier for you. It all starts with you and your property, we are pleased to help you take the next steps at the pace that is appropriate for you.

Get started with your prefab modular home in Sonoma County.