Cal Coast Construction

ADU Construction

Build an accessory dwelling unit on your property. From design and permits to complete construction, we handle every step.

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Complete ADU Services

Cal Coast Construction provides full-service ADU construction throughout California. Whether you're building a detached guest house, converting a garage, or adding a junior ADU, our team handles the entire process from concept to completion.


California's ADU laws have made it easier than ever to add living space to your property. An ADU can provide rental income, housing for family members, or simply add value to your home. Our experienced team navigates local regulations to make the process smooth.

Why Build an ADU?

  • Generate rental income of $1,500-$3,000+/month
  • House aging parents or adult children
  • Increase property value by 20-30%
  • Flexible space for home office or guests

Design & Permits

We handle architectural plans and all permit applications.

Site Preparation

Foundation, utilities, and site work done right.

Quality Construction

Built to code with quality materials and finishes.