SouthSTAR Construction

ABOUT US

Permit-Ready ADU & Custom Home Construction in Corona, California

Built on experience, accountability, and doing things the right way—start to finish.

About SouthSTAR Construction — Licensed ADU & Custom Home Builder

ADU Construction

Our Commitment To Quality Construction

SouthSTAR Construction is a California-based general contractor specializing in ADU construction and ground-up custom homes throughout the Inland Empire and Orange County. 

Our commitment is straightforward: build it right, treat clients honestly, and stand behind the work. Every project has our personal attention from the first consultation through the final inspection. That’s not a pitch line — it’s how we’ve earned our reputation.

Custom Home Construction

A Message From Our Founder!

About Us

SouthSTAR Construction was founded on the belief that residential construction should be organized, transparent, and built correctly—without unnecessary complexity.

With a foundation in civil engineering and over 15+ years of experience in construction, SouthSTAR Construction approaches each project with precision—from early feasibility and permitting through scheduling and final build. This process-driven approach leads to cleaner job sites, fewer surprises, and projects that stay on track.

Clients benefit from direct leadership involvement, clear communication, and a team that takes responsibility at every stage of construction. Whether building an ADU, a custom home, or completing a major residential upgrade, quality and integrity remain the standard.

Thank you for considering SouthSTAR Construction. We look forward to earning your trust.

— John Rizk

California License: 1076870
General A, General B, C-10, C-36

SouthSTAR Construction is a fully licensed and insured California general contractor specializing in ADU construction and ground-up custom homes. Our licensing allows us to self-perform and manage complex residential projects involving structural work, utilities, electrical, and plumbing—without relying on shortcuts or fragmented coordination.

✔ Fully Licensed & Insured
✔ Permit-Conscious Construction
✔ Direct Builder Communication
✔ Built to California Code Standards

Serving Southern California

Licensed | Bonded | Insured

We build ADUs and custom homes with a clear, well-managed process—from early feasibility and design coordination through final inspection. Our team prioritizes communication, realistic budgets, and disciplined execution, so you know exactly what to expect at every stage.

Call Today: (657) 664-8268
best adu builders

FAQ

SouthSTAR Construction specializes in Accessory Dwelling Units (ADUs) and ground-up custom homes throughout Riverside and Orange County. We focus on full-scope projects that require planning, permitting, and disciplined execution—not small handyman or piecemeal work.

Yes. SouthSTAR Construction is fully licensed and insured in California.
License #1076870 — General A, General B, C-10 (Electrical), and C-36 (Plumbing).

Yes. We manage the entire permitting and plan-check process, including coordination with architects, engineers, and local jurisdictions. Our projects are planned permit-first to avoid delays and redesigns.

Every project is unique. Costs depend on size, site conditions, utility access, finish level, and jurisdiction requirements. We provide realistic pricing after evaluating your property, not ballpark numbers that change later.

Timelines vary by scope and city approvals. Most ADUs take 6–10 months, while custom homes typically range 12–18 months. We establish realistic schedules upfront and keep clients informed throughout the build.

Initial consultations are used to evaluate feasibility, scope, and next steps. This allows us to determine whether your project is a good fit and provide accurate guidance moving forward.

You communicate directly with your builder. No layers, no sales handoffs. We believe clear, consistent communication is critical to a successful project.

The first step is scheduling a consultation so we can review your property, goals, and city requirements. From there, we outline feasibility, budget expectations, and the next steps toward construction.

What our Clients say

SouthSTAR Construction place picture
5.0
Based on 71 reviews
powered by Google
Matthew Barhoma profile picture
Matthew Barhoma
01:14 19 Feb 26
I highly recommend Southstar construction. John and his crew have been very knowledgeable and have been able to help me navigate the construction process with ease. They were experts in custom homes and ADU and their work product is impeccable. I would not hesitate to call John and Southstar construction for all construction needs.
Sandra Tewfik profile picture
Sandra Tewfik
01:07 19 Feb 26
We used South Star construction to build our ADU from the ground up and had a great experience overall.

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.
Eric Chavez profile picture
Eric Chavez
22:13 12 Feb 26
John and his fine company built our dream ADU. They were timely and professional. Ty
Felicia Becerra profile picture
Felicia Becerra
18:41 11 Feb 26
We came to SouthStar to build an ADU on my grandparents property. At first we considered getting a manufactured home vs. an ADU. John and his team were extremely knowledgeable and not pushy.

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.
Emanuel Santamaria profile picture
Emanuel Santamaria
21:44 02 Feb 26
SouthSTAR Construction was professional, reliable, and easy to work with. The quality of work was excellent, and communication was solid throughout the project. If you’re looking for a trustworthy ADU contractor, I highly recommend SouthSTAR Construction.
Alexis Goddard profile picture
Alexis Goddard
22:37 30 Jan 26
I hired another contractor who left me with a huge mess -unfinished and unpermitted work. John was referred to me and has been absolutely incredible with getting my renovation back on track, he not only gave me advice but helped me get to the point where am finally feeling like there is a light at the end of this nightmare of a renovation. He helped get me connected to quality subcontractors who were honest, fair and completed work on time. I am so thankful to have been referred to John, you won’t regret working with him!
Renee White profile picture
Renee White
01:45 23 Dec 25
John is the most helpful and honest person I have ever worked with. He didn't try to take advantage of me because I was a woman. He walked ne through fixing my issue and he was very patient and understanding. He really cared! To all you women out there who are looking for someone to help you while being honest and charging a fair price, this is the company!
Darlene Brown profile picture
Darlene Brown
21:24 12 Nov 25
I am getting my house painted, and I just needed to know where to buy some corner metal flashings and
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.
Joseph Ajeigbe profile picture
Joseph Ajeigbe
18:17 17 Oct 25
Got our first quote from John the owner of the company he was straight forward and recommended that we get other estimates but he backs the quality of his work. Spoke with a few different contractors for our remodel and decided to go with SouthStar, there was constant communication throughout the whole process. The company did a great job and I would 100% recommend them to my friends and family, great family company!

Thanks!
Bill Gunn profile picture
Bill Gunn
20:22 12 Sep 25
Well, it wasn’t easy working with the city of Norco on building at 900 ft.², two bedroom, two bath ADU in our backyard but we got it done! Thanks, John, and all the Southstar Construction workers who made this happen and worked through a number of challenging situations that occurred along this journey! I don’t know if I do it again, but if I did, I would certainly rely on John and Southstar to get the job done and get it done right.
J Rundle profile picture
J Rundle
09:03 02 Aug 25
We couldn’t have been happier with the work that was done by SouthSTAR Construction when we had our balcony torn down and rebuilt.

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!
Misha Shem profile picture
Misha Shem
19:54 19 Feb 25
If you're looking for honest contractors who have customer service in mind, this is the company to choose. I had an issue with a sagging joist in my bedroom floor which was visible from the ceiling below. I was able to cut out the ceiling on my own, take photographs of my issue, and send them over, without requiring an in person inspection. Afterwards, I received honest and sound advice as to what needed to be done to fix the joist. While the work has not yet been completed, I appreciated the quick, honest, and free advice. Even when I offered to pay, they said it would not be necessary and they were just happy to help. I strongly recommend Southstar simply based on this experience alone.
Donald Singh profile picture
Donald Singh
05:11 07 Feb 25
John is a good man! Helped us remodel our bathroom, highly recommend him and his team!!
Matt D profile picture
Matt D
20:44 06 Feb 25
John and his team did an amazing job on our kitchen. We really wanted a fresh new look and he was able to guide us in the right direction with his extensive product knowledge and years of experience. We will be using his team again in the future
Vesna Miksic profile picture
Vesna Miksic
00:42 02 Aug 24
Hands down best contractor I’ve worked with in Corona & Inland empire. Highly recommend!
Jaclyn Rangel Lindsey profile picture
Jaclyn Rangel Lindsey
00:16 02 Aug 24
South Star construction did not disappoint! We waited years to replace our old enclosed sunroom and finally looked to South Star Construction for help. Owner John and his crew made the living space what we’ve always dreamed of. The whole crew made me feel very comfortable. I would highly recommend using South Star construction for any of your construction needs. I love our new room. Thank you!
Mpuranga Uranga profile picture
Mpuranga Uranga
04:34 29 Jun 24
Best ADU ever!
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!
Cindy Reyes profile picture
Cindy Reyes
02:18 25 Nov 23
Rizk Construction exceeded expectations, delivering a stellar job. Their attention to detail, efficient work ethic, and skilled team set them apart. Highly recommend for top-notch construction projects.
Diana profile picture
Diana
17:03 13 Nov 23
I highly recommend this company! Very professional and honest.
Brett Riley profile picture
Brett Riley
21:18 16 Oct 23
John and his team did a great job. Spent 2 days working on floors, baseboards and drywall for me in several rooms. Looks great and seems like there was no damage from our slab leak. Thanks John, appreciate the great work!
Shelby Saylors profile picture
Shelby Saylors
05:54 13 Oct 23
I messaged this company with inquiries about the home building process. John was very prompt in responding, and we set up a call the next day. I was very impressed with his professionalism, and authenticity. He took time to answer my questions thoroughly, and was genuinely taking time out of his day to help me with no gain of his own. He was honest, transparent and kind. At this time we are not building a custom home, but we hope to work with him when we do.
samia younes profile picture
samia younes
06:17 10 Aug 23
Love this company the owner is honest and trustworthy. Overall extremely happy with my home remodel and I will continue to use rizk construction for future home renovations.
A.R. E. profile picture
A.R. E.
06:06 10 Aug 23
Just had two bathrooms remodeling projects completed by Rizk Construction, a master bathroom and a full bathroom. Rizk Construction is the real deal, John and his crew are the A-Team! Their work was excellent. The quote was competitive, the team showed up on time everyday, were highly professional and pleasant to deal with and were very attentive to detail. Not one minor detail was skipped over, everything was discussed with us during the project to ensure the final product was to our satisfaction. The pictures speak for themselves. I would highly recommend them.
Joey’s Batcave profile picture
Joey’s Batcave
00:36 17 Jun 23
John Rizk’s construction company remodeled our kitchen and did an excellent job. They demolished the old cabinets and countertops, hauled the old stuff away, and installed new cabinets and quartz countertops. The new cabinets are in perfect condition and have soft closing drawers and cabinet doors.

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.
Allan Perez profile picture
Allan Perez
06:00 16 Jun 23
I had an amazing experience with Rizk Construction and highly recommend them! John and his team were phenomenal. As an engineering firm and general contractor, their skills were impressive. John's attention to detail and problem-solving abilities were outstanding. Communication throughout the project was seamless, and he promptly addressed any concerns. The end result was mind-blowing—their flawless workmanship exceeded my expectations. If you're looking for a reliable and talented construction company, Rizk Construction is the way to go. Kudos to John and the entire team for a job well done!
jemell opena profile picture
jemell opena
23:11 15 Jun 23
Let me start by stating how difficult it is to find a reputable contractor from the start. I was not so fortunate this time either in trying to solve a roof leak with potentially 3 financially responsible parties. Along comes John and Rizk Construction.

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.
Eliza Garcia profile picture
Eliza Garcia
23:08 13 Jun 23
I had a fantastic experience with Rizk Construction, and I owe it all to the owner, John. His expertise and helpfulness made the entire project run smoothly. From start to finish, John's attention to detail and commitment to excellence were evident. He was always available to address any concerns or questions I had, ensuring clear communication throughout. With his guidance, the construction process was efficient and hassle-free. I truly appreciate John's dedication to customer satisfaction and his ability to make the project a success. I highly recommend Rizk Construction, thanks to John's exceptional leadership and support!
Karen Athey profile picture
Karen Athey
20:19 27 May 23
We had a garage conversion completed and the results were amazing! John was very professional and had great insight when we discussed what our vision was for our ADU. He has a hard working team with phenomenal workmanship. My husband and I would highly recommend his company for any project. You will love the results!
Eileen Shahbazian profile picture
Eileen Shahbazian
00:41 08 Apr 23
We worked with Rizk Construction for the replacement of a stair railing and lighting. John’s crew was excellent. They were wonderful to work with, professional and went above and beyond what was required of them. They were very attentive to our needs. We are very pleased with the finished product and proud to show it off to family and friends. We will definitely use their services for future projects.