full service
General Contractor
ADU
CONTRACTOR
ADU & Custom Home Construction Built for California Living
Building an ADU requires more than construction—it requires careful planning, permit coordination, and execution that aligns with city requirements from day one.
SouthSTAR Construction is the leading ADU Contractor in the area. Specializes in full-service ADU builds, guiding homeowners through feasibility, design coordination, permitting, construction, and final inspection. Our process is structured, transparent, and designed to minimize delays while delivering high-quality results.
Build an Accessory Dwelling Unit
Every property is different. Before building, we evaluate zoning, setbacks, utility access, and city requirements to confirm what’s possible on your lot. Our team helps you understand your options early—so you can make informed decisions before committing to design or construction.
Have an Idea? Not sure what’s possible?
We’ll review your goals, your property, and local requirements—then map a clear path forward.
Financing Options 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 laws, construction timelines, and permitting requirements, so your project can move forward with confidence.
We build the project. Our partners help fund it.
Financing solutions may include:
✔ ADU-specific loan programs
✔ Custom home & ground-up construction financing
✔ Construction-to-permanent loans
✔ Cash-out refinance & home equity options
✔ Owner-occupied and investment property solutions
Build a Custom Home
We build custom homes for homeowners who value structure, planning, and execution. From early coordination through construction and final inspection, our team manages the process with clear communication, disciplined scheduling, and attention to detail at every stage.
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Built on Planning, Permits, and Execution
Why Choose SouthSTAR Construction?
Permit-Ready Planning & Execution
We build with city requirements in mind from day one. Our team plans projects around zoning, inspections, and permitting workflows to reduce delays, avoid rework, and keep construction moving efficiently from start to finish.
Disciplined Project Management
Clear scopes, realistic schedules, and consistent communication define how we operate. Clients work directly with a structured team that manages trades, inspections, and timelines with accountability at every stage.
Built for Long-Term Value
Our projects are designed and constructed for durability, functionality, and long-term performance. We focus on quality materials, proper detailing, and execution that holds up well beyond final inspection.
Contact Us
Start Your Project Conversation
Tell us a little about your project and we’ll reach out within 1 business day.
What Homeowners Say About SouthSTAR Construction
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.
