CALIFORNIA ADDITIONS · EST. 1984 · CSLB # 460409

Thoughtfully designed.
Beautifully built.

Custom homes, renovations, and room additions built around your vision. Serving Orange County and the Inland Empire since 1984.

Discuss Your Project

A Legacy of Building Better

For over four decades, California Additions has been bringing our clients’ visions to life with quality construction, thoughtful design, and a commitment to excellence.

Our work has been featured on Extreme Makeover: Home Edition, highlighting the expertise and dedication we bring to every project.

CUSTOM HOMES
From concept to completion

ROOM ADDITIONS
More Space. More Possibilities

RENOVATIONS
Modernize and add value.

QUALITY CRAFTSMANSHIP
Build to last.

DESIGN & BUILD
One team. A seamless process.

Our Work

Explore the before-and-after transformations behind our work.

  • Smart Warehouse Retrofit

  • Municipal Water Monitoring

  • Renewable Microgrid Design

  • Retail Demand Forecasting

  • New List Item

Let’s build your
dream together.

Tell us what you have in mind.