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Uni Construction

5.0(
7
)
Architectural Service, Building Service Design Service, Drafting or CADD Service,

About us

Founded in 2014, Uni Construction + ADU Design is a full-service ADU design and construction firm serving Diamond Bar, West Covina, Hacienda Heights, and Rosemead. We specialize in detached ADUs, attached ADUs, garage conversion ADUs, junior ADUs (JADUs), and rental ADU developments. Our licensed team provides complete ADU services including feasibility reports, site evaluation, architectural design, drafting, permit processing, and full ADU construction as a true one-stop shop. We also deliver residential and commercial design-build services, including new construction, additions, remodels, and tenant improvements — all under one integrated team.

Business highlights

Se habla espanol
6 years of experience

Memberships & Affiliations

License B - General Contractor's license

Amenities

Free Estimates

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.07 Reviews
Write a review
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%
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Showing 1-7 of 7 reviews
Doris C.
Jul 2025
5.0
Google Review
I got to know Uni through its five star ratings. Just as the reviews say, Min always responds to my requests quickly, and helps me revise the plan many times until the permit application is approved. Highly recommended!! Trust me, you won't regret using their services.
Josue M.
Jul 2025
5.0
Google Review
I highly recommend Uni Construction for architectural plans. They did a great job on my plans for a detached ADU and getting them fully approved by the city. The plans were done quickly and you can trust that the job will get done right. I will definitely use them again for future projects.
Annie L.
Jul 2025
5.0
Google Review
Fantastic working with Min firm. He’s super knowledgeable and quick to respond. I definitely think he’s the best for all of your remodeling or ADUs needs.
Nicholas M.
Jul 2025
5.0
Google Review
Min has been extremely helpful in helping us create plans for our project. From even before we committed to Uni, Min provided guidance and advice on what to look for when getting other quotes and how to approach things. After we started the project, Min has been quick to respond and even pushed for us to get a quicker turnaround time than anticipated, we’re grateful for the team at Uni and will continue to use their services for future projects
Calvin A.
Jul 2025
5.0
Google Review
Started the project. So far so good. Pros: Communication Pricing I look forward to crossing the finish line in 6-7 weeks.
Kevin A.
Feb 2024
5.0
Google Review
hired uni for design service since city required permit. they got me everything for good deal. permit approved! thanks UNI!
Sung K.
Sep 2020
5.0
Yes, I recommend this pro
honest, fast and reliable stronly recommend

Licensing

Insured

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Uni Construction is currently rated 5.0 overall out of 5.

Monday: 9:00 AM - 12:00 AM Tuesday: 9:00 AM - 12:00 AM Wednesday: 9:00 AM - 12:00 AM Thursday: 9:00 AM - 12:00 AM Friday: 9:00 AM - 12:00 AM Saturday: 9:00 AM - 12:00 AM Sunday: 9:00 AM - 12:00 AM

Uni Construction accepts the following forms of payment: CreditCard

Yes, Uni Construction offers free project estimates.

No, Uni Construction does not offer eco-friendly accreditations.

No, Uni Construction does not offer emergency services.

No, Uni Construction does not offer warranties.