top of page


We Are Featured On


Simply enter your address and check to see if building an ADU is possible.



The State of California is offering up to $40,000 for your ADU project. This fund is to cover some of the costs such as: site prep, architectural designs, permits, energy reports, & more.

Building an ADU?

Have loved ones stay close to you or just rent out for extra passive income! If your property qualifies, we will build you a second livable unit on your lot.


Avorino's Guide to ADU Construction in Orange County, CA:

What You Need to Know

Frequently Asked Questions

  • Is Avorino licensed & insured?
    Yes, indeed! We hold a valid General B license issued by the Contractors State License Board (CSLB), in addition to the requisite bonds, workers' compensation, and liability insurance. Please feel free to contact us should you wish to request a copy of these documents.
  • Do I need plans/permits for my project? Can I just build un-permitted?
    When undertaking a construction project in California, obtaining a permit from the local city or county authorities prior to commencing construction is crucial. Certain minor activities, such as changing flooring or painting, might be exempt from this requirement. However, for other project especially those that involve the construction of new structures, such as custom homes or Accessory Dwelling Units (ADUs), it is mandatory to have your plans stamped by a licensed engineer and submitted to the local authorities for approval. Upon approval of your plans and after the associated fees are paid, you will be issued a building permit. Only with this permit in hand can a licensed contractor legally work on your construction project. Our team of engineers and architects is ready to collaborate with you to design your ideal project. Once you are satisfied with the design, we will take the lead in securing all necessary approvals and building permits from the city, ensuring a smooth start to your construction endeavor.
  • What sets Avorino apart from other contractors?
    We're not your typical contractors. Our team is exceptionally communicative and transparent. We leverage cutting-edge technology throughout our entire process, from quoting and rendering to the tools we use during construction, ensuring the highest quality. Avorino is at the forefront of redefining the construction experience. We see ourselves as being in the customer service industry while simultaneously creating remarkable structures.
  • How long does building a new construction, such as a custom home or an Accessory Dwelling Unit (ADU), take?
    On average, the construction phase of building a new construction takes between 5-10 months depending on the size of project. Planning, design, and permitting can require about 4 months or more. If you are considering building a custom home or an ADU, the best time to start planning is TODAY!
  • How much does building a custom home or an ADU cost in Orange County?
    In 2024, the estimated cost of new construction in Orange County ranged between $300 and $500 per square foot. It's important to note that the smaller the structure, the higher the per square foot price tends to be. The per-sqft-price also depends on how the building is designed. Avorino typically falls within this price range. Our pricing remains competitive while upholding the highest standards of work quality. At Avorino, cost savings begin during the project design phase.
  • How accurate is Avorino's pricing? Will I end up spending more than the quote for my project?
    We are committed to maintaining full transparency, and that's why we provide a detailed quote. Once the quote is provided, you can rest assured that our pricing will remain unchanged. However, there are scenarios where your project cost may exceed the initial estimate: 1. Finished Materials: to ensure the end result of our project aligns with what you envisioned, we make sure the finishing materials are purchased directly by you (the client). This includes cabinets, tiles, countertops, and more. Without setting a budget beforehand, it's easy to overspend when selecting these materials. 2. Change of Scope: any changes in the project's scope will naturally affect the cost. For instance, if you decide to expand the project by adding backyard concrete after your ADU is completed, this will increase the overall cost. 3. Known-Unknowns: Construction projects often contain uncertainties, even with approved plans. To account for potential unknowns, we may include an allowance in your bid, ensuring that we are prepared for unexpected situations. 4. Unknown-Unknowns: Despite our efforts to anticipate unknowns, there will always be some unpredictable elements. For example, during excavation for the foundation, we have encountered a substantial underground rock that caused delays. In such cases, we prioritize collaborative problem-solving with the client to minimize additional costs and keep the project on track. In conclusion, our dedication to transparency and communication is designed to build trust and ensure that you, as our client, are fully informed and in control of your project's budget and outcome. We strive to prevent surprises by closely managing known factors and working collaboratively to address the unknowns. Your satisfaction and achieving the vision you have for your project are our top priorities. By partnering with us, you're choosing a team that is committed to bringing your vision to life, within the parameters we've collectively established.
  • What services does Avorino offer for custom home and ADU projects, from design to completion?
    At Avorino, our goal is to ensure your ultimate satisfaction. We've learned that a significant portion of client satisfaction is ensuring the project is handled professionally and hassle-free. We strive to take care of everything from A to Z when it comes to your custom home or ADU project. We take care of every aspect of your project, from design and, if necessary, financing, to permitting, construction and inspections. We are committed to assisting you choose the perfect finishing materials that match your style and preferences.

Where Vision Meets Construction Mastery.

Building dreams & delivering exceptional projects with expertise, precision, and unwavering commitment.

Elevating standards and surpassing expectations, for results that stand the test of time.

Interior Designer Testing New Colors

Why Choose Avorino

Client Centric Approach

We prioritize our clients' needs and vision throughout the construction process. Our team listens attentively, provides personalized guidance, and collaborates closely with you to bring your ideas to life. Your satisfaction is our ultimate goal, and we go the extra mile to ensure that your construction experience is seamless and enjoyable.

Transparency & Communication

Clear and open communication is at the heart of our client relationships. We keep you informed every step of the way, providing regular updates on progress, addressing any concerns promptly, and ensuring transparency in all aspects of the project.

Customization & Flexibility

We understand that every project is unique. We offer a tailored approach, taking into account your specific needs, preferences, and budget. Our flexibility allows us to adapt to changes and incorporate customizations to ensure your complete satisfaction.

Unmatched Expertise

With years of experience and a team of skilled professionals, we bring a wealth of expertise to every project. Our deep knowledge of construction processes, materials, and industry best practices ensures that your project is in capable hands.


What Our Clients Think of Avorino

We had a great experience with Avorino. Right from the start, they were patient and helped us make the decision by showing us projects they were working on. The end result turned out great.

Pooja M.

They got the job done in a timely manner. It seems everyone in this company is very friendly and professional. 100/100 across the board from work, prices, to customer service.

Jeremy C.

The experience was nothing like I imagined it would be. I had heard so many horror stories about construction going bad that it took us so long to take this step. I could not have made a better decision picking this company. Thank you for being so amazing.

Sonia H.

See All Reviews

Recent Blog Posts

Let's Discuss 
Your Next Custom Home or ADU Project.

Fill out the form, or call us to

set up a free in-person consultation.

Service Areas:

Southern California


+1 (714) 900-3676

bottom of page