License #1083621BLOG

ADU Builder San Diego. Your [#1] Construction Contractor


We are your [#1] ADU Builder in San Diego. Accessory Dwelling Unit is a big project, but can also be budget-friendly if you have the right team to build it. We believe that Accessory Dwelling Units (ADUs) are a great way to add more living space to your property, whether it’s for guests, family members, or as a rental unit. ADUs can be attached or detached from your main home, and can provide a lot of flexibility in terms of design and use.

When you choose Sheiner Construction as your ADU builder in San Diego, expect only high-quality craftsmanship, attention to detail, and a commitment to customer satisfaction. We use only the best materials and work with trusted subcontractors to ensure that your ADU is built to last and meets all local building codes and regulations.

We offer competitive pricing and transparent communication throughout the entire process. We are Sheiner Construction, your expert builder for ADU construction in San Diego, CA!

Adittion Construction in Montelena by Sheiner Construction San Diego (19)

Your ADU Builder In San Diego, CA

Add Design & Creativity With Our Service

We believe that at Sheiner Construction, we are among the most efficient builders of Accessory Dwelling Units (ADU) in San Diego. Our team of experienced professionals understands the importance of building these units quickly and efficiently, without sacrificing quality.

15+ Years Experience

Proven Track Record

Up-To-Date San Diego Regulations

Customer-Centric Approach


Quality Materials

Budget-Friendly Solutions

Innovative Design

[#1] ADU Construction Contractor

[SAN DIEGO] Building SERVICE at its finest

From design to completion, we strive to provide our clients with the highest level of construction service and expertise. We understand that building an ADU can be a complex process, but our team is equipped to handle every aspect of the project, from obtaining the necessary permits to ensuring that the construction meets all building codes and regulations.

House Extension ADU

Building a house extension ADU is a great way to add functional living space, increase property value, or even generate rental income.

Home Office ADU

A home office ADU provides a dedicated workspace, improves work-life balance, and reduces commuting time and expenses.

Studios or Workshops ADU

A studio or workshop ADU provides a designated space for creativity, hobbies, or a home-based business, separate from the main living area.

Music Studios ADU

A music studio ADU provides soundproof space for practice or recording, allowing musicians to pursue their passion without disturbing others.

Home Gym or Fitness Space ADU

A home gym or fitness space ADU offers a convenient and private area for exercise, encouraging a healthy and active lifestyle.

Garage ADU

A garage ADU can provide a cost-effective solution for your car, best use being on winter.

Basement ADU

A basement ADU can provide extra space without changing the footprint of the house, offering a budget-friendly solution.

Happy Customers

Making you happy is our main goal. We’ve already helped lots of other people to get their privacy.

ADU types that we build in San Diego

An ADU building is more than a added space. It is your private corner of relaxation, a space that extends the confort when you want your own place to live.


The Trust Over the Internet

Trust over the Internet and among homeowners in San Diego

Outstanding Constructions
We are known for our amazing construction service because we pay close attention to every little detail, and use the most qualitative materials. This makes sure that every ADU we build, turns out to be a masterpiece.

Customized Help & Service
At Sheiner Construction, we provide custom ADU buildings in San Diego. We really listen to what each client wants and offer solutions that fit their ideas and budget perfectly.

Communication With You
Building trust means being open and clear in our communication. During the ADU construction, we make sure to keep our clients updated every step of the way. This helps them feel confident and involved in all the decisions and progress.

Our Happy Customers

and what they saying

Have Questions?

We have answers!


If you’re thinking about building a detached or attached ADU in San Diego, use our free quote service. Our professional team is here to help you make the construction you want within your budget. Just contact us, and we’ll show you all the options for free, with no pressure to commit. Start today and take the first step toward having a new ADU that looks awesome and functions perfectly.

(619) 577-3749



Take a moment to think why choose a construction contractor over another. We are known for:

Premium Work

Never settle for low quality. You are the client, you decide the quality. Sheiner Construction will always use premium quality products, and will have premium execution.

Great Pricing

We know that Accessory Dwelling Unit (ADU) is not budget friendly, but we have the right contractors, so we can do it cheaper with the same premium products.

Fast Execution

We believe that fast execution is a key factor for ADU builders. But rest assured, Sheiner Construction will always make things perfect even if the execution is faster than our competitiors.


We believe that the punctuality is one of the most important factors in Accessory Dwelling Unit sector. Not just because it is the right thing to do, but it shows respect toward our clients.

Hard Working

No matter how easy or hard is the ADU construction, we can do it. With our experience and expertise, Sheiner Construction is by far the contractor you you are searching for in San Diego.

Great Support

In Sheiner Construction you will find a partner. Ask us anything, and we will support you every step of the way. We respect our clients, and keep them informed.

Long Lasting

Rest assured. Everything we touch is long lasting. As the best Accessory Dwelling Unit (ADU) contractor in San Diego, we work only with premium products, and manage to fit into your budget.


As a PREMIUM ADU builder in San Diego, the word EXCELENCE must be on piedestal. We’ll never lose it, and will always work hard to keep it for our customers. We promise!

And So Much More

Your money, your ideas, our PREMIUM work. What can go wrong? Get the finest team in San Diego, as many other clients did before. We are Sheiner Construction, your # ADU Builder.

Need an ADU builder in San Diego? Sheiner Construction!

We believe that choosing our ADU construction service in San Diego means choosing a commitment to excellence, and a transparent partner that will be there for you; anytime.

Our expert team of contractors brings the right experience and expertise to home customization. We specialize in crafting beautiful, functional ADUs tailored to your unique needs and style preferences.

We commit to using only high-quality materials and innovative design solutions to build a space you’ll love for years to come. Throughout every stage of the process, we focus on transparent communication and personalized attention, making sure we fully capture your vision and needs. Don’t settle for just any ADU constructionchoose an exceptional experience with us.

Adittion Construction in Mira Mesa by Sheiner Construction San Diego (4)
Transparent License Bonded Insured Badges
5 star company

Sheiner Construction Near You in San Diego

When you search “ADU BUILDER Near Me” in San Diego, it is very possible that Sheiner Construction pop up in the search. We opened another location, just to be closer to you!

Frequently Asked Questions for ADU Construction

If there is a question you have, it is very possible to find it below. Not here? Contact us, and we will answer to all your questions.

An Accessory Dwelling Unit (ADU), also known as a granny flat, is a separate living space that is either attached or detached from the main house. It can be used as a rental unit, home office, or a living space for family members. The benefits of having an ADU in San Diego include additional rental income, increased property value, and a solution to the housing shortage in the city.

The zoning requirements for building an ADU in San Diego depend on the location and size of the property. In general, the property must be zoned for residential use and meet certain size and setback requirements. It’s best to check with the local zoning department to determine the specific requirements for your property.

The building requirements for constructing an ADU in San Diego include obtaining the necessary building permits, complying with building codes, and meeting certain safety and health standards. It’s important to work with a licensed contractor, such as Sheiner Construction, who is familiar with the local building requirements to ensure that your ADU is built safely and meets all regulations.

The cost of building an ADU in San Diego varies depending on the size, location, and design of the unit. In general, the cost can range from $50,000 to $300,000 or more. It’s important to get multiple quotes from licensed contractors to determine the cost of building an ADU on your property. You can get a free quote by contacting us.

At Sheiner Construction, we have the knowledge and expertise to help you with anything you need for constructing a Accessory Dwelling Unit (ADU) in San Diego.

Yes, you can rent out your Accessory Dwelling Unit (ADU) in San Diego. However, you must comply with local zoning and rental regulations, including obtaining any necessary permits and following landlord-tenant laws. It’s best to consult with a local attorney or property management company to ensure that you are in compliance with all applicable laws and regulations.

The length of time it takes to build an ADU in San Diego varies depending on the size and complexity of the unit, as well as any permitting or zoning requirements. In general, it will take roughly 3 months and can can get up to 8 months on most properties in San Diego. This is not including the plans and permits that can take also 2-6 months in most cases.

But if you want an Accessory Dwelling Unit (ADU), get a Free estimate from us.