This company was founded by a seasoned team of industry professionals using tried and proven processes to help people build their dream homes and ADU's and avoid the nightmares.

Our team has 35 years of experience working with modular homes in California. We have managed, designed, and permitted Factory Built Homes in dozens of counties around the state and are here to help you.

All our homes are built in California, to the California Building Code, for Californians.

California Modular Houses is here for you.

California Modular Houses, Inc. is a company that works exclusively building in the beautiful Golden State. Our focus is on starting off with the right design to meet your property and budgetary needs. We have an in-house designer who can assist you in coming up with the perfect floor plan for you and your family.  

All of the homes that are on our home page were designed by our in-house designer.

There are plenty of other examples on our website of homes that we designed from scratch or modified an existing plan to meet the requirements of the local jurisdiction, the constraints of the property, or the specific needs of our client.

Whether you are starting out from scratch, you started out considering a site built home and found out it was too expensive, or you are an experienced builder, we can help you.

We have a network of different professionals that we have worked with for years that we would be happy to introduce you directly to, when they are needed. Here are some of the consultants that are typically required for building in California. We have excellent relationships with them where they take good care of our clients, they will directly be offering to you quality work at affordable pricing (no mark-up from us):

Surveyors

Civil Engineers

Structural Engineers

Perc Test & Septic Designers

Title-24 Energy Consultants

CalGreen Consultants & Raters

Geotechnical Engineers for Soils Reports

Pricing Tiers

This ADU is a small modular home that was built on a property where there were already two small homes. We custom designed this home to fit the property, making it just a bit smaller than the original version. Built in Santa Cruz County, CA

ADU Plans

Lowest overall pricing tier

Highest cost PSF, overall best value.

A modern California Bungalow prefab modular house with white siding, gray lower walls, brick accents, a gable roof, front porch with stairs, black railings, and landscaped yard with plants and a stone pathway.

1200-1999 Plans

Mid-tier pricing

Single story, semi-custom.

A 3D rendering of a modern, white, flat-roofed, single-story house with arched windows and a small front porch with steps surrounded by green bushes, set in a neighborhood with trees and clear blue sky.

Over 2000+ Plans

Higher tier

Single story, semi-custom large ranch plans.

Featured Plans by Our Designer

  • A digital rendering of a single-story house with wooden siding, a gable roof with red shingles, and a front porch with white railings and steps.

    Design of the Month

  • Newly constructed yellow house with multiple doors and windows, a paved backyard, and trees with fall foliage in the background.

    House of the Month