Accessory Dwelling Unit (ADU)

Accessory Dwelling Unit (ADU)


The advocacy for Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) in California arises from some essential needs and visions. California’s housing shortage, coupled with high costs of living, make ADUs and JADUs a practical and affordable solution. They add necessary residential spaces without disrupting existing neighborhoods.

ADUs and JADUs also cater to our aging population, providing a comfortable option for seniors to live near family while maintaining their independence.

Beyond immediate needs, the push for these units supports a sustainable future with their smaller carbon footprint. They offer flexible living arrangements, adapt to their inhabitants’ needs, and stimulate the local economy by creating jobs and additional income for homeowners. This support for ADUs and JADUs reflects California’s commitment to its residents and a sustainable, thriving future.

At Lusso Design and Build as one of the leading ADU contractors in San Diego, we understand that your home is more than just a place to live. It’s a place of comfort, a place of security, and a cornerstone of your family’s financial stability. That’s why we’re passionate about helping San Diego homeowners explore the possibilities of Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU).

Fully licensed, bonded, and insured, we are a local San Diego contractor committed to assisting you every step of the way, from conceptual design to the final brush stroke. We specialize in designing and building ADUs and JADUs that comply with California regulations, ensuring your project meets all local and state standards.


An Accessory Dwelling Unit, or ADU, is a secondary housing unit on a single-family residential lot. These units can be detached (separate from the main house), attached (part of the main house), or located within the existing primary residence. They have their own independent living facilities, including a kitchen, sleeping area, and bathroom.

What is a JADU?

A Junior Accessory Dwelling Unit (JADU) is a unit that’s contained entirely within an existing single-family structure and typically does not exceed 500 square feet. It includes an efficiency kitchen, which has cooking facilities and food preparation counters, and may share sanitation facilities with the existing structure.

Regulations on a san diego ADU & JADU

California has paved the way for homeowners to add ADUs and JADUs to their properties with Senate Bill 1069, Assembly Bill 2299, and Senate Bill 229, which came into effect in 2017. These bills aimed to ease regulations, streamline the process, and expand the capacity to accommodate ADUs and JADUs. Hiring an experienced ADU contractor San Diego can help navigate the complexities of these regulations and ensure a smooth construction process

The state sets baseline rules, but regulations can vary between municipalities. Key elements of the regulation include minimum lot size, parking, maximum unit size, and owner-occupancy requirements. Rest assured, at Lusso Design and Build, we ensure your project aligns with all San Diego and California state regulations. 

The County of San Diego has developed a program that offers pre-approved ADU plans to homeowners. These plans meet specific design guidelines and the local building code, which simplifies and speeds up the permitting process. This also eliminates the uncertainty of design approval and significantly reduces the cost of architectural services, making it more straightforward and affordable for homeowners to construct an ADU on their property.

Together, regulatory changes, streamlined processes, increased awareness, professional expertise, financial incentives, and the availability of pre-approved plans have significantly simplified the process of building an ADU in San Diego.

san diego adu construction

State Incentives in California

California, recognizing the potential of ADUs and JADUs to address the housing shortage, has implemented measures to encourage homeowners to construct these units. These incentives include relaxed zoning regulations and expedited permit reviews. For specifics on incentives available in San Diego, we’d be glad to discuss them during your consultation. For more information on grants and financial assistance from the state please visit CALFHA to stay up to date on available grants. As your dedicated San Diego ADU  contractor, we stay informed of all the latest California news and incentives ensuring a seamless process. 

Rent and ROI of a san diego ADU & JADU

Building an ADU or JADU is an excellent investment. Rent prices for ADUs and JADUs in San Diego can vary widely based on factors like location, size, and amenities. With the growing demand for rental properties in San Diego, there is certainly the potential for substantial rental income. Based on Zumper, in San Diego, CA, the average rent for a 1-bedroom apartment in May 2023 is $2,425.

The return on investment (ROI) when building an ADU or JADU depends on several factors, such as the cost of construction, financing, the potential rental income, and appreciation in property value. Given the favorable conditions in San Diego’s housing market, many homeowners find that ADUs and JADUs quickly pay for themselves and then become a source of ongoing income.


In Home Consultation

We begin by taking precise measurements, our team will then sit down with you to go over the design you have in mind, listening to your needs, and expectations. We will offer our professional suggestions based on our extensive experience in ADU construction in San Diego. We’ll discuss various options providing expert guidance to help you make the best decisions for your ADU. Once we’ve captured your vision, we’ll provide you with a detailed quote, ensuring transparency and honesty from the very beginning. Our aim is to give you confidence in your decision.

Modern ADU Construction

3D Design & Rendering

Discover the possibilities for your ADU / JADU with Lusso Design and Build's design and 3D rendering services. Our team takes the time to understand your vision, creating detailed designs and lifelike 3D renderings to bring your ideas to life before construction begins. Experience the excitement of seeing your ADU take shape, and feel confident in the final result, with Lusso Design and Build.

ADU Construction Experts

Material Selection & Guidance

At Lusso Design and Remodel, we've partnered with trusted San Diego showrooms for an effortless material selection experience. Together, we'll visit these showrooms, where you can find a variety of top-notch options for your San Diego ADU construction. Our team will provide expert guidance and personalized support throughout the process. Let's find the perfect materials to create your perfect ADU. Contact us today to start your material selection journey with our trusted San Diego partners.

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Plans & Permit Processing

Don't stress about the paperwork! At Lusso Design & Build we handle all the plan drafting and permit approvals for your ADU/ JADU. Our experienced team will create detailed plans that align with your vision and meet building codes. We'll take care of the permit application process, ensuring an efficient experience. Relax and let us handle the administrative work while you focus on the exciting part—creating the perfect ADU for your property. Contact us today to get started on your San Diego ADU without the hassle.

blueprints of proposed remodel

Our Construction Process

We prioritize transparency, quality, communication, and craftsmanship in our ADU construction process. We keep you updated every step of the way, ensuring clear communication and addressing any concerns in a timely manner. Our experienced team delivers exceptional craftsmanship, using top-quality materials for an ADU that lasts. We value your input and collaborate closely to bring your vision to life. Trust us to create a space you'll love. Contact us today to begin your San Diego ADU construction journey with us!

Accessory Dwelling Unit Build

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benefits of building an adu & jadu in san diego

We at Lusso Design and Build believe that building an Accessory Dwelling Unit (ADU) or a Junior Accessory Dwelling Unit (JADU) on your property opens up a world of opportunities. Here are a few of the top benefits to consider:


Extra Income: By renting out your ADU or JADU, you can generate a steady stream of income. Think about what that could mean for your family—maybe it’s taking care of the monthly mortgage, funding your kids’ education, or saving up for that dream vacation.


Increased Property Value: An ADU or JADU can significantly boost the value of your property. So not only do you enjoy the immediate benefits of additional living space or rental income, but you’re also making a sound investment for the future.


Flexible Living Arrangements: Your ADU or JADU can be a comfortable space for your extended family. It’s a perfect solution if you have aging parents who need to be close by or grown-up kids craving their own space.


Community Building: By adding a dwelling unit, you contribute to the diversity and availability of housing in your local community. It’s a great way to support San Diego’s vision of more affordable and inclusive neighborhoods.


Potential for Work or Hobby Space: If you’re not looking to rent out your ADU or JADU, you could utilize this space for a home office, a studio, a gym, or any other hobby space that your heart desires.


A Sustainable Choice: Smaller living spaces like ADUs and JADUs encourage more energy-efficient living. By choosing to build one, you’re playing your part in promoting sustainable urban growth.

the top choice for your san diego ADU CONSTRUCTION


With over 10 years of experience in the industry, our team has the knowledge and expertise to handle any San Diego ADU construction project. We stay up-to-date with the latest trends and techniques to deliver exceptional results.


Customized Solutions

As a top ADU contractor in San Diego, we understand that your project is unique, and we believe in creating a space that reflects your personal style. Our team will work closely with you to understand your vision, preferences, and budget.


Quality Craftsmanship

We take great pride in our craftsmanship and attention to detail. From the selection of high-quality materials to the installation process of your ADU construction, we maintain a focus on delivering a beautiful and durable end result that you and your family can enjoy for years to come.


Transparent Communication

We value clear and open communication with our clients. Throughout the construction process, we keep you informed about the progress, address any concerns, and involve you in the decision-making. Your satisfaction is always our top priority.


Comprehensive Services

Our services cover all aspects of your San Diego ADU construction. From initial design, planning and permitting to selecting  materials and managing the construction process, we handle it all. You can trust us to provide you with a smooth and hassle-free experience.


Satisfied Customers

Our reputation speaks for itself. We have thousands of satisfied customers and 5 star glowing reviews. We take great pride in the positive feedback we receive and the lasting relationships we have built with our clients.

SAN DIEGO adu / jadu construction FAQ

A: The cost of building an ADU can vary widely based on factors such as size, design, finishes, and site-specific conditions. We at Lusso Design and Build provide detailed quotes to ensure transparency about costs involved in your specific project.

A: The time it takes to build an ADU can range from a few months to over a year. This timeframe includes design, securing permits, and construction. We strive to complete our projects in a timely manner while maintaining our commitment to quality and compliance with all regulations.

A: Yes, you do need a permit to build an ADU. California has streamlined the permitting process for ADUs to encourage homeowners to build these units. We handle all aspects of the permitting process to ensure a hassle-free experience for you.

A: Yes, you can rent out your ADU. In fact, many homeowners build ADUs with the intention of renting them out for extra income. However, there are certain restrictions on short-term rentals, which we can discuss in detail.

A: In California, an attached ADU can be up to 50% of the primary dwelling’s size and a detached ADU can be up to 1,200 square feet. On the other hand, a JADU is typically contained within the existing space of a single-family residence and can be up to 500 square feet. The exact sizes for both will depend on several factors, including lot size, zoning regulations, and your specific needs. At Lusso Design and Build, we’re ready to help design an ADU or JADU that maximizes your space and meets your unique requirements.

A: While most single-family properties can accommodate an ADU, there are zoning regulations and other factors such as lot size and location that need to be considered. We can help assess your property’s suitability for an ADU.

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