full service
General Contractor
ADU
CONSTRUCTION
Construction Experts!
ADU Contractor Corona CA
ADU Contractor & Custom Home Builder
SouthSTAR Construction builds ADUs and Custom Homes throughout Southern California. We take pride in the quality of every build — from the foundation to the finish. When the work is done, it speaks for itself.
Build an Accessory Dwelling Unit (ADU)
Every ADU we build is different — and we treat it that way. We take time to understand your property, your goals, and your budget before a single nail is driven. The result is a well-built ADU that adds real, lasting value to your home.
Have an Idea? Not sure what’s possible?
Bring us your idea — even a rough sketch or a photo on your phone. We’ll tell you honestly what’s achievable on your property, what it will take to build it right, and whether we’re the right fit. No pressure. No guesswork.
Build a Custom Home
Building a custom home is one of the most significant investments you’ll make. We treat it that way. SouthSTAR builds custom homes the way they should be built — with quality materials, skilled trades, and an owner who stays personally involved from the first meeting through the final walkthrough.
ADU & Custom Home Financing Available
We work with trusted financing partners that specialize in ADU and custom home construction financing throughout Southern California.
At SouthSTAR Construction, we understand that financing is often one of the biggest questions when planning an ADU or a custom home. That’s why we collaborate with top ADU and custom home financing companies to help homeowners secure funding that aligns with their goals, timelines, and property equity.
Our team will help connect you with financing professionals who understand California ADU & Custom Home laws, construction timelines, and permitting requirements, so your project can move forward with confidence.
We Build your project. Our partners help Fund it.
Built on Experience, Planning, & Accountability!
Every SouthSTAR project is approached with a clear understanding of zoning, feasibility, and constructability before construction begins. As your General Contractor, our process is led with an engineering mindset—focused on eliminating uncertainty early, coordinating details correctly, and executing the work with precision in the field.
We help our clients throughout the full build process, from early evaluation through final inspection, so clients aren’t left managing subcontractors or city coordination on their own. The result is a smoother project, fewer surprises, and a finished home built to perform long after completion.
What this means for our clients:
Projects are evaluated realistically before commitments are made
Construction decisions are based on code, feasibility, and long-term performance
Why Choose SouthSTAR Construction?
Permit-Ready From Day One
Craftsmanship That Shows We build to a standard, not a deadline. Every detail — framing, finishes, fixtures — is handled by skilled trades who take pride in their work. Our completed projects are the best evidence of what we deliver.
Direct Oversight & Accountability
One Builder. Full Responsibility. You work directly with John — not a salesperson or project coordinator who hands you off after signing. We stay personally accountable from the first consultation through the day you get your keys.
Built for Long-Term Value
Good construction doesn’t happen by accident. It takes experienced trades, clear communication, and an owner who knows what right looks like. At SouthSTAR, we know the job site, the trades, and when something isn’t built the way it should be. That level of attention doesn’t cost extra — it’s just how we work.
Contact Us
Start Your Project Conversation
We review every inquiry personally and respond within one business day.
What Homeowners Say About SouthSTAR Construction
They were efficient, fairly priced, and very upfront about what was included in their scope of work. Communication was clear, there were no surprise costs, and they delivered what they promised. The project stayed on track, and the quality of work was solid.
If you’re looking for an honest contractor who does good work and respects your budget, I’d definitely recommend them.
We ultimately went with SouthStar for the ADU build out and couldn’t be more happy with the results. He was able to work within our budget and still give us a beautiful finished product. You can probably find someone cheaper, but you get what you pay for. Save yourself the headache.
The representative at south star.
Construction was kind enough to send me a link where I can buy them. So appreciated, thank you so much.
Thanks!
John and his team were very professional, showed up on time, paid attention to all the little details needed, always cleaned up at the end of the
day, and always communicated throughout the job on what was being done.
I’d highly recommend John and his team from SouthSTAR Construction to anyone that needs work done, you won’t be disappointed!
Southstar Construction did a wonderful job in building my ADU in Fontana. John the Project Manager was proactive during the whole process; from the plans, design, permits, to construction, and through the final city approvals. His crew were very talented and professional; knew exactly what they were doing. The team gave me feedback when I was unsure. They were very good communicators and were available to answer any questions that I had. It has just the right amount of space for me. Construction was completed timely and the pricing was reasonable for what I wanted. I truly recommend Southstar Construction. I really love love love my new ADU!!!
Thank you Southstar Construction!
The electrical work was top notch and a lot of old issues were fixed including lining up all the outlets and light fixtures, which were previously uneven.
The employees arrived on time each day, were clean, friendly, and respectful and they cleaned up at the end of each day. They were a pleasure to have over each day and trustworthy. John the owner is very knowledgeable and affordable. Each day I am shocked at how great everything turned out. They made my house feel like a model home. I highly recommend Rizk Construction to my family, friends, and everyone looking for great quality at a great price! Very honest and reliable.
I had a room take the brunt of water damage via a mysterious roof leak during the 2022-2023 southern California rain storms. 4 months later Rizk construction to the rescue. Found the leak, repaired the sub floor and was able to find some beautiful re-carpet of my upstairs.
John was punctual, up front and was exceptionally professional having succinct yet exact contracts in the scope of work that was done.
