ADU & Residential Construction Services

Engineering Homes That Fit Your Life

At SBKN Engineering, we specialize in Accessory Dwelling Units (ADUs) and residential construction design that’s both efficient and customized to your needs. From planning to permits, we deliver PE-stamped plans and project support you can count on.

Simplify the Process. Maximize the Outcome.

We work closely with homeowners, contractors, and developers to make residential projects smooth and code-compliant. With licensed engineers and real-world construction expertise, we help you move from vision to reality—faster and smarter.

Our ADU & Residential Services Include:

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Custom ADU Design

From backyard studios to rental units, we design Accessory Dwelling Units tailored to your property, zoning, and budget—complete with PE-stamped plans and permit-ready documents.

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Structural & Framing Plans

We provide detailed structural layouts for residential builds, ensuring safety, stability, and local code compliance. Perfect for new homes, additions, and remodels.

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Electrical Design & Load Calculations

Our electrical plans cover everything from service panel upgrades to full home wiring layouts, with NEC-compliant designs and Title 24 considerations.

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Remodel & Addition Planning

Thinking of expanding or reconfiguring your space? We create clear, permit-ready plans for home additions and renovations, making the process hassle-free.

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Construction Support & Coordination

We offer ongoing support for builders and GCs—including site coordination, revisions, and engineer sign-offs—keeping your project on track and inspection-ready.

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Permit & Submittal Packages

Get everything you need for city approval. Our permit sets include site plans, elevation views, Title 24 reports, and engineering documentation—all in one place.

Ready to Start Your ADU or Residential Project?

Let’s bring your vision to life—on time and up to code. Whether you're planning a new ADU, remodeling your home, or need PE-stamped plans for permits, SBKN Engineering is here to help.

Get Started Now

Why Choose SBKN Engineering?

Licensed & Experienced Engineers

Quick Turnaround Times

Trusted by Contractors & Developers

Compliance-Ready Designs

Frequently Asked Questions

Explore our most frequently asked questions to learn more about how we can help you.

Got a more specific question? Don’t hesitate to reach out—we’d love to help!

What services does SBKN Engineering provide?

SBKN offers comprehensive engineering services including electrical design, civil engineering, solar system design, ADU (Accessory Dwelling Unit) planning, and construction management for both residential and commercial projects.

Do you provide stamped engineering plans?

Yes. Our licensed Professional Engineers (PEs) can provide stamped plans for both electrical and civil projects in California and Texas.

Can you help with ADU (Accessory Dwelling Unit) designs and permitting?

Absolutely. We specialize in designing ADUs that meet local zoning regulations and building codes, and we can assist with the full permitting process.

Do you only work on solar projects?

Nope! While we’re experts in solar design, we also handle traditional electrical design, load calculations, panel schedules, site plans, trenching details, grading, drainage plans, and more.

What types of commercial projects do you work on?

We support a wide range of commercial developments, including office buildings, retail spaces, multi-family units, EV charging infrastructure, and more. We tailor our services to fit each project's specific needs.

Do you handle both design and construction management?

Yes. Our team can manage your project from concept to completion, offering support in planning, permitting, contractor coordination, and quality assurance.

Can you coordinate with my contractor or architect?

Definitely. We regularly collaborate with architects, general contractors, and developers to ensure seamless integration of our designs into the overall project.

How long does it take to get plans completed?

Turnaround times depend on the project scope. Smaller designs (like solar or ADU layouts) can take 3–5 business days. Larger civil or commercial projects may require more time. We offer expedited options if you're on a tight deadline.

Do you assist with permit submittals?

Yes, we offer full permit support—including document preparation, plan set compilation, and coordination with city or county agencies.

What areas do you serve?

We primarily serve California, Illinois and Texas, but depending on your project, we may be able to assist in other states as well.

Why choose SBKN Engineering?

We’re a multi-disciplinary team that blends technical accuracy with real-world construction knowledge. Our speed, attention to detail, and hands-on service make us the go-to partner for builders, developers, and homeowners alike.

What Our Clients Say About SBKN

George Owens

“Working with SBKN was a game-changer. Their team handled all the structural and permit requirements for our home addition flawlessly. What impressed us most was their responsiveness and attention to detail. Every question we had was answered quickly, and their coordination with the city helped us avoid delays. We felt confident every step of the way and couldn’t have asked for a smoother experience. I highly recommend SBKN to anyone looking for engineering support that’s professional, knowledgeable, and actually cares about the success of your project."

Kim Wexler

“We’ve worked with other firms before, but none compare to SBKN. They managed our commercial tenant improvement project with professionalism from start to finish. Their engineers delivered accurate, stamped drawings quickly, handled revisions without delay, and even worked directly with the city to push permits through faster than expected. Their clear communication and accountability helped us stay on track and under budget. We’ll definitely continue using SBKN for all our future builds and refer them to anyone in the industry.”

James Cart

“As a general contractor, I need reliable partners — and SBKN has been exactly that. They’ve helped us on multiple projects, from ADUs to full-scale remodels. Their structural and civil plans are always spot-on, and their ability to respond quickly to plan check comments saves us time and money. They understand the field, the permit process, and what it takes to get projects approved fast. I trust them completely and appreciate having a team that makes my job easier instead of harder.”