Find a Good ADU Company in Orange County

Located on the same property as a single-family residence, an accessory dwelling unit (ADU) is a secondary, self-contained living space. These units, which can take the form of garages, cottages, and basement apartments, among others, are gaining popularity as a means to provide more affordable housing options in congested urban areas such as Orange County.

They are ideal as a place for an adult child, parent, or guest to reside, or as a means of generating additional income through rentals.

If you want to enjoy the benefits of an ADU, you must employ a dependable, reputable ADU company. In addition to executing the construction, they will ensure compliance with all applicable regulations and protocols.

Learn how to locate an excellent ADU company, particularly in the Southern California and Orange County areas, by reading on.

Here at GreatBuildz, a free service that connects homeowners with reliable ADU contractors in Orange County, we speak to homeowners every day about hiring an reliable ADU company– here are some tips to get you started.

garage to ADU conversion

Orange County ADU Company: How Do I Locate the Best ADU Company Near Me?

There are a number of essential measures to take when browsing for ADU businesses. These consist of:

  1. Investigate – Utilize the Internet to search for ADU companies in your area and collect information regarding their services and experience. Additionally, it may be beneficial to speak with anyone you know who has previously constructed an ADU to see if they can recommend a good local ADU company.
  2. Read reviews – Peruse online customer reviews to determine the grade of the company’s work and customer service.
  3. Request references – A reputable ADU company should be able to provide you with contact information for previous clients.
  4. Compare ADU costs – Obtain estimates from multiple companies and compare the prices of their services to ensure that the contractors you are contemplating can work within your budget.
  5. Verify licenses and insurance coverage – Verify that the companies you are considering are licensed, insured, and capable of adhering to all ADU laws and local ADU ordinances.
  6. Schedule a consultation – Once you believe you’ve found an ADU company you’d like to work with, scheduling a consultation is a fantastic way to assess their expertise and communication skills.

Or you can skip all the legwork and contact GreatBuildz to get matched with a pre-screened, Orange County ADU Company that is the best fit for your ADU project & budget.

ADU rental unit

What Should I Look for in a Reputable ADU Company in Orange County?

There are numerous ADU companies in Orange County, and it can be difficult to determine which ones are the most dependable and trustworthy. Here are some characteristics that we recommend vetting ADU companies for.

  • Experience – Seek out a company that has built ADUs in the Orange County area and is familiar with the local zoning laws and building codes. You do not want your ADU to be the first that your contractor has constructed.
  • Licensing and insurance – Ensure that the company is licensed and insured to operate in California.
  • Quality – Examine references, testimonials, and portfolios to identify a company with a solid reputation for constructing high-quality ADUs.
  • Communication and customer service – Select a business that is communicative and attentive to your requirements. It’s essential to feel secure working with your ADU company, so it’s best to consult with them prior to signing any documents.
  • Permits and plans – Ensure that the company can assist in acquiring the essential permits and developing plans that adhere to local regulations.
  • Design and customization – Seek out a company that will work with you to design and customize the ADU according to your particular requirements and preferences.
  • Consider the company’s estimated timeframe for the project, as well as its capacity to meet the deadline.
  • Consider the company’s warranty and maintenance policies for the ADU after it has been constructed.

constructing high quality ADU

Should I Choose the Most Economical Orange County ADU Company?

Building an accessory dwelling unit (ADU) can be costly, so it is natural to attempt to minimize expenses. However, it is crucial to exercise caution when selecting the company with the lowest estimate.

A price that is unusually low may indicate that the company uses inferior materials or otherwise cuts corners. This means that while you are paying less now, you may incur additional costs in the future for repairs. 

Cheaper businesses may also be less experienced, meaning they may lack the necessary knowledge and skills to complete tasks efficiently and effectively. This could cause the project to take longer than anticipated or cause problems with permits or costs. 

Remember that an ADU is a long-term investment that you will own for a while once it is constructed. It is preferable to do things correctly the first time in order to have a simple, expeditious construction process and high-quality, long-lasting results with excellent craftsmanship. 

If you’re having trouble determining a budget and calculating the costs, don’t hesitate to request a detailed estimate with a breakdown of the materials and labor costs from the local ADU companies you’re evaluating. This will help you understand precisely where your money is going, making it simpler for you to stick with the required budget.

ADU budgeting and pricing

What Should I Ask a Local ADU Company?

We recommend asking the following ADU questions during your consultation with the ADU companies you’re considering hiring:

  • How long have you been constructing ADUs in the local area?
  • Are you conversant with the zoning laws and building codes applicable to accessory dwelling units in my city?
  • Are you insured and licensed to perform work in California?
  • Can you assist in acquiring the essential licenses and permits?
  • Can you explain the process to construct an accessory dwelling unit?
  • Can you provide references for ADU clients you’ve completed in the past?
  • Can you provide comprehensive project cost estimates, including all materials and labor?
  • How can you guarantee that the work will be completed on time and within budget?
  • Can you provide a list of subcontractors and suppliers with whom you will be working?
  • Can you provide a timeline for the project’s completion?
  • How are the design, configuration, and customization of ADUs approached?
  • How do you communicate with consumers during the construction phase?
  • What is your warranty and maintenance policy for the ADU?

The answers to these queries should help you determine whether or not you want to work for the company.

finding reputable ADU companies

When it comes to finding a good, local ADU company in Orange County, you shouldn’t have to do it alone – GreatBuildz can help simplify your ADU experience.


GreatBuildz is a free service that connects homeowners in Los Angeles, Orange County, Ventura or San Diego with reliable, thoroughly screened ADU contractors and provides project support from start to finish.


Call now (818.317.3567) to chat with a real person about your ADU project or visit our website for more information:

Hi, we're Paul and Jon - Co-Founders of GreatBuildz. We believe everyone deserves to find a great contractor, have a stress-free renovation, and enjoy their beautiful new space. There are so many contractors out there and it's often hard to tell the good from the bad... until it's too late. We started our company to help simplify your contractor search and help you have a stress-free renovation experience. We're always available to help, no matter where you are in the process. Click here to learn more about our story.

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