01
Engineering precision
Every beam calculation, shear wall spec, and foundation pier is engineered to meet or exceed California seismic standards — signed, sealed, and permitted.
About Rhema Designs
Where His Word becomes the blueprint
A Costa Mesa design-build firm delivering as-builts & 3D design, construction documents, structural engineering, and project management across Southern California since 2005. Built on faith.
Licensed · Bonded · InsuredCSLB #983159Costa Mesa, CA
20+
Years in California
1,000+
Projects completed
2005
Established
4.9★
Average client rating
Our Story
One firm for design, engineering, and construction
Costa Mesa · Since 2005
Rhema Designs was founded to close the gap between structural engineers and general contractors. Based in Costa Mesa, we've grown into a trusted design-build partner for Southern California homeowners — completing over 1,000 projects across Costa Mesa, Laguna Hills, and Santa Monica.
Southern California homes face unique structural challenges — hillside properties, seismic fault lines, and strict municipal codes in coastal cities. Our integrated team handles every phase in-house: as-builts & 3D design, construction documents, structural engineering, city permit expediting, and project management.
Our faith drives how we treat every client — with honesty, patience, and genuine care through the full process. When you hire Rhema, you're not a job number. You're a family trusting us with your home.
“Unless the Lord builds the house, the builders labor in vain.”
— Psalm 127:1
How We Work
Three principles guide every project
Engineering accuracy, design clarity, and transparent communication.
02
Architectural vision
We balance modern aesthetics with spatial efficiency — natural light, ceiling height, and the indoor-outdoor flow Southern California living deserves.
03
Transparent management
Daily jobsite logs, itemized pricing, no hidden change orders, and a direct line to your project supervisor from first call to final walkthrough.
Client Testimonials
Trusted by Southern California homeowners
Real feedback from homeowners in Costa Mesa, Laguna Hills, and Santa Monica.
4.9 / 5.0
84+ Google & Yelp reviews
100%
On-time completion
20+ years
in Cali
0
Permit rejections
Google Reviews
"Rhema Designs was exceptional from day one. Having an in-house structural engineer was a game changer for our city permits in Costa Mesa. They guided us through floor plan design, submitted drawings, and finished our 2-bedroom addition on schedule and on budget. Their craftsmanship and high-ceiling beamwork is stunning!"
David & Sarah Lin
Costa Mesa, CA•850 Sq Ft Living Addition & Engineering
Our Faith, Our Promise
Construction is about serving families well
Honesty first
No inflated estimates, no hidden fees, no pressure. We tell you the truth about your project — even when it's not what you expected to hear.
Guided through every step
Permits, engineering, inspections, construction — we walk with you from the first call to the final walkthrough, explaining everything in plain language.
Built to last
We build as if it were our own home. Every beam, every joint, every finish meets the standard we'd want for our own families.
By wisdom a house is built, and through understanding it is established; through knowledge its rooms are filled with rare and beautiful treasures.
Let's build something lasting
Schedule a free on-site consultation at your property in Costa Mesa, Laguna Hills, Santa Monica, or nearby Southern California cities.