ADU San Diego. Your [#1] Accessory Dwelling Unit Builder

We are your [#1] ADU Contractor 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 ADU contractor in San Diego, you can expect 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. Plus, we offer competitive pricing and transparent communication throughout the entire process.

We Build Accessory Dwelling Units in San Diego

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.

From design to completion, we strive to provide our clients with the highest level of 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.

Accessory Dwelling Units - ADU in San Diego by Sheiner Construction

We Are Your

ADU Contractor in San Diego

Why hire costly contractors when you can have the best construction crew in San Diego for less?

Get a free estimate, and take a 10% discount on all our services.

Besides ADU builder in San Diego, we offer the ADU revolution, where we’ll guide you throughout the entire process and setbacks.

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Our Commitment to Accessory Dwelling Units

ADU Contractor in San Diego

Accessory Dwelling Units San Diego

If you are considering building an Accessory Dwelling Units (ADU) in San Diego, we invite you to contact us to learn more about how we can help you. We are confident that our team has the expertise and dedication to provide you with the best possible service and results.

No matter the size of the project, we are your San Diego contractor for Attached or Detached ADU.

At Sheiner Construction San Diego, we are committed to using the latest construction techniques and materials to build ADU that are both durable and energy-efficient. Our goal is to provide our clients with a high-quality living space that will enhance their property value and provide a comfortable living space for years to come.

Some of the Accessory Dwelling Units (ADU) we constructed in San Diego were:

  • 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.

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Why Choose us as your ADU Contractor in San Diego?

We believe that choosing our Accessory Dwelling Unit (ADU) service in San Diego means choosing a commitment to excellence. Our expert team of contractors have the right experience and expertise in home customization, specializing in creating beautiful, functional ADUs that meet our clients' unique needs and style preferences.

We use only high-quality materials and innovative design solutions to construct a space that you will love for years to come. At every stage of the process, we prioritize transparent communication and personalized attention to ensure that your needs and vision are met. Don't settle for a mediocre Accessory Dwelling Unit (ADU) construction, but choose a truly exceptional experience.

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Frequently Asked Questions for Accessory Dwelling Units (ADU) in San Diego


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.

We Are Sheiner Construction: Your ADU Contractor in San Diego

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.

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.

Hard Working

No matter how easy or hard is the Accessory Dwelling Unit (ADU), we can do it. With our experience and expertise, Sheiner Construction is by far the best contractor you can find in San Diego.


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

Fast Execution

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

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.

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.


As the best Accessory Dwelling Unit (ADU) contractor 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 know how important it is for you

ADU Setbacks in San Diego

Our experience and expertise in the field thought us a lot, therefore, we follow the best practices of ADU setbacks in San Diego.

Notable Accessory Dwelling Units (ADU) setbacks:

  • Determine zoning and residential use

    We verify that your property is zoned for residential use and check the specific zoning requirements for ADUs in San Diego County.

  • Fire setback compliance

    We contact the appropriate Fire Department to ensure compliance with required fire setbacks. Determine if fire sprinklers are required for your ADU.

  • Property eligibility

    We ensure that your property is eligible for building an ADU

  • Floor area limitations

    To start building an attached or detatched ADU, flooring limitations must be in place.

  • Plot plans and calculations

    We provide accurate mathematical computations of the floor area for both the ADU and the existing SFD on the plot plans, and also calculate floor area based on the exterior dimensions of the outside walls.

  • Patio, deck, and balcony regulations for ADU

    Any attached or detached patio, deck, or balcony should comply with Section 4835 of the Zoning Ordinance.

  • Height limitations

    For instance, detached ADUs are limited to a height of 25 feet, except for multifamily complexes.

  • Existing accessory structures

    For this point, we always ask if you need a conversion or new ADU.

  • Front yard setbacks

    All newly constructed detached and/or attached ADUs must comply with the required front yard setbacks, with a minimum side and rear setback of 4 feet (unless fire setbacks apply).

  • Parking requirements

    Depending what you need, and ADU or JADU, there are different requirements.

ADU plans for setbacks

If you are considering building an Accessory Dwelling Unit (ADU) in San Diego, we will follow the best practices for setbacks, and guide you throughout the process. 

It is not as hard as you think if you have an experienced ADU contractor who has the experience and expertise to make it right from the start.

You can see all the ADU setbacks on, or hire us for a free estimate and guidance.

Moreover, join our ADU Revolution in San Diego, and let’s build your ADU, resting assured that you have the best construction contractor alongside.


ADU San Diego

An Accessory Dwelling Unit (ADU) is a secondary living space on a residential property, also known as an in-law or mother-in-law unit, granny flat, secondary dwelling unit, or carriage house. Typically, an ADU comes equipped with its own kitchen, living area, and separate entrance. It can be attached to a house or garage, or constructed as a stand-alone unit, but it will generally share water and energy connections with the primary house.In the past, many residential areas in the United States had zoning laws that restricted population density and limited the size and spacing of single-family dwellings. However, zoning changes in many regions of the country now permit the addition of ADUs. These laws often impose limits on the size and design of new ADUs and mandate that the property owner reside on the premises.More about understanding ADU on Investopedia.

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