Accessory Dwelling Units (ADUs) are swiftly gaining popularity in Los Angeles. They offer a fantastic way for homeowners to boost their property’s value and tap into rental income opportunities. With the city’s growing housing demand, many are seeing ADUs as an attractive investment.

In this article, we’ll explore what ADUs are and uncover the benefits they present to homeowners in LA. Whether you’re looking to sell or invest, ADUs might just be your golden ticket!
What are ADUs in Real Estate?
An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same property as a single-family home. Think of it as a mini apartment or a guest house that can be used by guests, family members, or even rented out for extra income.
In California, there are specific requirements that an ADU must meet. First, it should be at least 500 square feet in size, providing enough space for comfortable living and a full bathroom. It must also include a kitchen or kitchenette with crucial amenities like a stove top, sink, and adequate counter space for meal prep. Lastly, the ADU must have its own separate entrance, ensuring privacy and independence from the primary residence.
Previously known as an in-law suite, an ADU offers flexibility and practicality, making it a popular choice for California homeowners looking to maximize the use of their property.
What Are the Types of ADUs in California?
Adding an ADU to your home comes with a variety of options. Depending on the structure of your property, building a separate dwelling unit can look different for everyone. Below is a list of the most common ADUs in California.
- Detached ADU – This is like a mini-house in your backyard. It stands on its own and gives tenants or family members their own private space. Think tiny home, guest house, pool house, etc.
- Attached ADU – This unit is attached to your main house, sharing one wall. It’s like adding a room that feels part of your home.
- Above Garage ADU – Built above your garage, this type of ADU is a clever way to use up space without making your property bigger.
- Converted Garage ADU – Turn your garage into a living space and save money on building costs while getting extra usable space.
- Basement ADU – Change your basement into a living area. It’s efficient, but make sure it has enough light, air, and follows the building permit rules.
How Much Does It Cost to Add an ADU to Your Home?
The cost of building an ADU on your property can vary greatly depending on the type of ADU you wish to have.
For example, if your property has space to add a detached ADU, it will be more expensive, ranging between $5,000 and $25,000. This type of ADU is a separate structure, like a tiny home or guest house, built on the same property as your home.
It will require separate electric hookups and plumbing if building from scratch, which could increase the initial cost. However, a detached ADU could have a higher ROI than building an attached or interior ADU.
Can You Rent Out an ADU in Los Angeles?
If you do not have a family member who needs to live in your accessory dwelling unit, you can rent it to tenants and earn monthly passive income. Based on the current LA rental prices, you could earn between $1,700 and $3,000 per month by renting your ADU.
It’s important to know that ADUs in Los Angeles are not eligible for short-term rentals of less than 30 days. They must also abide by Rent Stabilization Ordinances. So, if you plan to add an ADU, it must be rented to long-term tenants.
You must also register your ADU with the Rent Registry in Los Angeles to legally rent the unit to tenants. The unit must also comply with local ordinances and requirements for rental properties.
Do You Need a Permit to Add an ADU in California?
Yes, homeowners are required to obtain a building permit before building an ADU on their California property.
Before starting construction, the city must approve your building plans to ensure your ADU is compliant with state laws and regulations.
Is an ADU a Good Investment Opportunity for California Homeowners?
From an investor’s perspective, ADUs are an excellent investment opportunity for homeowners in California who are looking to increase property value and create a passive stream of income.
This unique opportunity allows homeowners to create a rental unit without putting up a significant amount of capital to purchase a property. Instead, they can tap into their home equity and use it to invest in adding an accessory dwelling unit.
When it comes time to sell the property, the ADU could increase the property value, helping you earn even more ROI on your initial purchase.

So, not only can Los Angeles homeowners earn an additional rental income each month, but they can reap the benefits when selling their property in the future. It’s a win-win all around!
Start Building Your Real Estate Investment Portfolio in California with Lotus Property Services
Have you been thinking about investing in real estate in California by adding an ADU to your property? It’s one of the easiest ways to start building your real estate portfolio!
But you don’t have to do it alone. Lotus Property Services is Los Angeles’s leading property management company, helping real estate investors maximize their investments and build lucrative real estate portfolios.
We take care of everything from filling vacancies to collecting rent to keeping detailed accounting each month. If you’re thinking of renting out an ADU in Los Angeles, we’re here to ensure everything goes smoothly and is 100% compliant with local laws and regulations.
Contact us to see how much your ADU can generate in rental income each month today!
If you enjoyed this article, make sure to check out How to Find Which Property Investment is Right for Me next!
Of course. Here is a strong FAQ section to add to your blog post, designed to directly address the most common investor questions and demonstrate expertise.
1. How much can I expect to spend on building an ADU?
ADU construction costs in Los Angeles can vary widely. A basic garage conversion can range from $70,000 to $120,000, while a new, detached ADU can cost between $150 and $400 per square foot, with total project costs ranging from $90,000 to $400,000 or more. These costs depend on the size, design complexity, and material finishes.
2. What kind of rental income can an ADU generate?
In Los Angeles, a well-placed and well-designed ADU can generate significant rental income. On average, you can expect to earn between $2,000 and $4,000 per month, depending on the unit’s size, amenities, and proximity to key areas like universities, transit, and major employers.
3. What is the typical ROI and payback period for an ADU?
Investors in LA typically see an annual return on investment (ROI) between 8-12% when combining rental income with property appreciation. The payback period, or the time it takes to recoup your construction costs, is generally between 5 and 10 years, depending on your financing and rental rates.
4. Do ADUs have a parking requirement?
No, in most cases, you are not required to provide parking for an ADU as long as the property is located within a half-mile walking distance of a public transit stop. This makes ADUs an excellent investment in transit-friendly areas of Los Angeles.
5. Can a property manager help with my ADU?
Yes. A professional property management company can be invaluable for an ADU investor. They can handle all aspects of the rental process, including tenant screening, lease agreements, rent collection, maintenance, and ensuring compliance with local ordinances like the Rent Stabilization Ordinance (RSO) and Just Cause Ordinance (JCO). This allows you to generate passive income without the day-to-day hassles of being a landlord.
6. Can I legalize an unpermitted ADU?
Yes, Los Angeles has a program that allows for the legalization of unpermitted dwelling units. You must bring the unit up to all current building and safety codes and follow a streamlined process with the city. Legalizing an unpermitted unit is crucial to ensuring your investment is compliant and protected.
