I recently had an initial chat with the owner of an up-and-coming engineering company that specializes in building ADUs, and I came away genuinely impressed. The conversation was professional yet personable, and it was clear they have a strong vision backed by solid expertise. Their enthusiasm and knowledge about the process gave me confidence, and I’m now seriously considering working with them on my project. It was a great first impression.
Licensed Professional Engineers · CA · TX · IL
Engineering,
surveys & permitting.
Done right the first time.
Licensed Professional Engineers delivering PE-stamped, permit-ready plans for residential and commercial projects across Orange County and beyond.
200+Projects Completed
10+Years of Experience
Licensed Professional Engineers (PEs)
PE-Stamped & Permit-Ready Plans
Serving CA, TX & IL
01What We Do
From raw land to
permit-ready plans.
Four disciplines under one PE stamp. Every project moves through our licensed engineers — no middlemen, no handoffs, no surprises at the permit desk.
All services- 01
ADUs & Residential Construction
Expert ADU and residential construction plans with PE-stamped drawings and permit-ready designs. From garage conversions to custom-built ADUs and full-scale residential projects, we provide comprehensive design, engineering, and permitting solutions that meet local building codes and maximize space efficiency.
Learn more - 02
Land Surveying & Soil Testing
Professional land surveying and geotechnical soil testing services to support your project from the ground up. We handle property boundary identification, topographic surveys, soil investigations, and geotechnical reports that evaluate soil conditions, bearing capacity, and foundation requirements for permit approval.
Learn more - 03
Civil & Structural Engineering
Comprehensive civil and structural design solutions for residential and light commercial projects. We deliver engineered site grading, drainage plans, foundation designs, and structural calculations for beams, joists, shear walls, and framing — ensuring every build is structurally sound and code-compliant.
Learn more - 04
Construction/Project Management
End-to-end construction and project management services to keep your build on track and on budget. We coordinate between engineers, contractors, and permitting agencies — handling document preparation, plan set compilation, scheduling, and city or county coordination so you can focus on results.
Learn more
02Our Promise
Built for precision.
Delivered under pressure.
Engineering is a discipline of tolerances. Ours are tight — on the drawings, on the schedule, and on the line to our clients.
- /01
PE-stamped, permit-ready.
Every plan set leaves our office signed by a licensed Professional Engineer and aligned with the AHJ's current code cycle.
- /02
One firm, end-to-end.
Surveys, geotech, civil, structural, and project management stay under one roof — no vendor tag-offs, no finger-pointing.
- /03
Direct line to the engineer.
You work with the PE who stamps your drawings. Revisions, RFIs, and plan checks don't go through an account manager.
DWG · PROMISE-01SCALE 1:1
SBKN ENGINEERINGREV. A
03Our Work
Selected projects.
Signed, stamped, built.
No.ProjectLocationDisciplineYearScope
- /001Yorba Linda, CAADU · Residential2025
Detached ADU · 1,200 SF
Yorba Linda, CA · ADU · Residential · 2025
Full architectural set, structural calcs, T24, and permit coordination on a sloped rear-yard lot.
- /002Anaheim, CAADU · Residential2025
Garage Conversion
Anaheim, CA · ADU · Residential · 2025
Conversion of 440 SF detached garage into JADU with new foundation reinforcement and egress.
- /003Orange, CACivil · Structural2024
Commercial Tenant Improvement
Orange, CA · Civil · Structural · 2024
Shear wall redesign, interior framing, and lateral calcs for a 6,000 SF retail-to-office conversion.
- /004Brea, CALand Surveying2024
Topographic Boundary Survey
Brea, CA · Land Surveying · 2024
Full boundary and topo with 1ft contours for an infill parcel prior to grading permit submittal.
- /005Fullerton, CACivil · Structural2024
Custom Residential — Hillside
Fullerton, CA · Civil · Structural · 2024
Site grading, drainage, caisson foundation design, and structural plan set for a custom hillside home.
- /006Irvine, CAProject Management2023
Multi-Permit Coordination
Irvine, CA · Project Management · 2023
End-to-end AHJ coordination across planning, building, and public works for a three-lot development.
04Testimonials
What our clients say.
Straight from the job site.
5.0
5 Google Reviews
I worked with SBKN Engineering and they did an amazing job getting me permitted for my ADU in Orange. These guys know their stuff. They were able to put everything together and dealt with the city swiftly. I didn’t really have to get involved, but just the design component. If you’re looking to get a permit for your construction project in Southern California, SBKN is your go to! Omid, Bibars and Seyf are great people!
My team at BluSky Patios just started working with SBKN Engineering and they have been very responsive and delivered our plans faster than expected. They worked with us on two difficult project and made it seem easy! If you are looking for an engineering partner, this is the group to work with!
5 reviews across Orange County, CA.
Read every review05Where We Work
Rooted in OC.
Licensed in three states.
Home base is Yorba Linda, and most of our work lands across Orange County, CA. With PE licensure in California, Texas, and Illinois, we take projects out of state by referral.
PE · CaliforniaPE · TexasPE · Illinois
REGION · ORANGE COUNTY, CA14 CITIES SERVED
- Yorba Linda
- Anaheim
- Fullerton
- Brea
- Placentia
- Orange
- Tustin
- Irvine
- Santa Ana
- Huntington Beach
- Costa Mesa
- Newport Beach
- Lake Forest
- Mission Viejo
Ready when you are
Ready to Get Your Permit?
Let's draw it up.
Contact us today for a free consultation on your next engineering project.