Turn Your Backyard Into Income & Space You'll Love
Full-service ADU contractor. Design, permits, build — all handled in-house. 35 years of local experience in Greater Sacramento.
The smartest investment you can make on your property
Sacramento's ADU laws have never been more favorable. Core Construction helps you take full advantage — fast.
Rental Income
Sacramento ADUs typically rent for $1,200–$2,200/month. Your backyard can pay for itself within years, not decades.
Family Space
Give aging parents or adult children a private home on the same property — close but completely independent.
Property Value
A permitted ADU adds significant resale value and makes your property far more attractive to future buyers.
Home Office or Studio
Create a dedicated workspace, art studio, or gym — separated from your main living area.
From conversation to keys — we handle everything
We manage every step so you never have to chase permits, coordinate trades, or wonder what happens next.
Free Consultation
We visit your property, assess your goals, and show you what's possible — no cost, no pressure.
Design & Plans
Our in-house design team creates plans that match your lot, your style, and local code requirements.
Permits Pulled
We handle all permit applications with Sacramento County or your city — you don't lift a finger.
Build & Finish
Our crews build your ADU from start to finish, with custom cabinets manufactured in-house.
Final Walkthrough
We walk the project with you, address every last detail, and hand over the keys.
What sets us apart from other Sacramento contractors
One company, every step — so nothing falls through the cracks.
In-House Cabinet Manufacturing
We build custom cabinetry at our own facility. No outsourcing, no delays — a perfect fit for your ADU kitchen and bath.
35 Years in Greater Sacramento
We know local codes, permit offices, and inspectors. That experience means fewer delays and smoother builds.
True Design/Build — One Company
Design, engineering, construction, and cabinets all under one roof. No finger-pointing between contractors.
Quick Turnaround Focus
Efficient builds mean your ADU gets rented or occupied sooner — and you start seeing returns faster.
What Sacramento homeowners say
"I have hired contractors who performed very well on many projects, while I lived in Chicago and here in Sacramento. Core Construction provided the BEST experience I have had by far. Darko delivered our remodel on time, going above and beyond and not just filling the order. He corrected so many issues from a previous poor contractor, I truly feel we went from hell to heaven. Thanks to Darko, I live in a home friends are amazed at and changed our minds about moving. We will be contacting him for our next project, out bathrooms. Only a matter of time, only hope he is available after this review. No exaggeration here, truly a craftsman! Thank you Darko!"
"I saw a "net zero energy home" sign and called the number for an estimate/consultation to do a renovation project. Not only was Darko Borovnica knowledgeable in his craft and work ethic, Darko gave brilliant, creative and functional design ideas for each space and room."
"Love the design and work. Thank you so much for your flexible time and excellent work. We absolutely love the end product. The walls, floors, and furniture look beautiful and it makes everything look new and different. Truly enjoyed the professional customer service, knowledge and making us feel important and a priority! Thank you for your help and time. We are so glad someone was able to accommodate our budget and make everything beautiful. THANK YOU SO MUCH!"
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Get Your Free ADU Estimate
No commitment. No pressure.
Just a straightforward conversation about your project and what it would take to build it. Or call us directly — we answer.
916-719-9979Call us directly — we answer
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We call you within 24 hours to discuss your project goals
Free on-site visit and detailed estimate — no obligation