What is an ADU and How Could it Add Value to Your Long Beach Rental Property

Dustin Edwards • August 28, 2020

Find Out More about ADUs

Accessory Dwelling Unit
ADU stands for Accessory Dwelling Unit. You might have heard this referred to by other names such as a Mother-in-Law Unit, Granny Flat, Casita, or even a Garage Conversion. The concept is adding (or modifying) a property that is a single family residence to allow for an additional unit on the property. This helps make a traditional single family home, more like a duplex.

Why Have ADUs Become Popular?

The concept of a granny flat has been around for quite a while. In the last few years, with rental prices soaring, the concept of an ADU has become more mainstream with the support of the California legislature. To help individuals with more affordable housing options the state mandated that cities update their local building codes to allow homeowners to add ADUs with greater ease. 

Two of the cities, Long Beach and Lakewood, where we help our rental owners the most have made great efforts to ensure they provide guidance on ADUs.
The guidelines give you a good idea of what to consider from size requirements and timing as you consider your option of adding an ADU.

Variations of an ADU in Long Beach

When many people hear ADU, they think of a garage conversion and images of a person sitting next to a hot plate come to mind, but that certainly isn’t the case anymore. A garage conversion may be the most popular form of ADU but is far from your only option. Consider the following variations of ADUs:
  • Garage Conversion - The garage conversion is the most common as a large portion of the structure is present which can optimize investment in the building process.
  • Separate Structure - A separate structure gives you maximum opportunity for configuration since you will be building it from the ground up.
  • Above the Garage - Building above the garage can be limited by municipality. For example, currently Lakewood does not allow for an ADU to be built above the garage.
  • Basement or Attic - While not as common, especially in Southern California, the building code does allow for a basement or attic ADU to be built.
Keep in mind that for all but the basement or attic conversion that the design of the ADU is to be inline with the design of your primary residence and that cities can limit the which ADUs they allow (i.e. Lakewood does not allow above the garage). The city can ask for the same type of roofing shingle, coloring, elevations, etc. to be applied to the ADU. While this may not be what you intended this certainly can help to positively contribute to the long term value of your property.

Fundamentals of an ADU

In the era of AirBnB and VRBO where people have rented out rooms, it is important to understand that an ADU will have essential elements. These important aspects of the addition not only allow you to meet city code but also contribute to the value it adds to your property and the rentability. An ADU will have its own:
  • Kitchen
  • Bathroom
  • Entrance
  • Laundry
Notice that separate metering (i.e. electric, gas, and water) are not listed. While separate metering isn’t generally a requirement, likely due largely to the aspect it was considered to be added for family, it doesn’t mean you can’t add metering should you decide to add an ADU to your property. As it can be expensive to add all utility metering some homeowners choose only to add electric metering as it tends to be the most expensive.

A Few Caveats to Consider
  • While each city has different requirements that you must adhere to, we invite you to consider the following:
  • ADUs can be up to 800 sq ft or 50% of the primary residence (whichever is greater) in Long Beach
  • An ADU may not be sold separate from the primary residence (i.e. like a duplex)
  • Parking is not required if you are within a ½ mile distance of mass transportation
  • These are designed for long term rentals, not AirBnB or VRBO 
When it comes to adding an ADU there are many items to consider. To help you understand how an ADU can contribute to your monthly rental income and the long term value of your property we invite you to call us today at (562) 888-0247. Or if you prefer a complete evaluation of your property we invite you to fill out our Free Rental Analysis.




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With the real estate market as competitive as it is, many landlords are looking into building an Accessory Dwelling Unit (ADU) or Jr. ADU to improve their bottom line with additional monthly income. While this is a great way to earn more, you need to be sure you’re investing in the right upgrade to your property. Below are some of the key differences between ADUs and Jr. ADUs; this way, you can make the right decision for your property. Differences between Junior ADUs and ADUs On the surface, the primary difference between an ADU and a Jr. ADU is the square footage. However, there are many considerations for each type of ADU , significant differences include costs and build limitations. ADUs are generally seen as a larger and more versatile build when compared to a Jr. ADU. They can be built detached from the main home, converting an existing structure, most commonly the garage. In Long Beach, an ADU can be up to 800 square feet or 50% of the gross floor area of the primary dwelling, whichever is smaller. For reference, an 800 sqft living space can be arranged as a 2-bedroom 1-bath home, though with creative use of the space, many investors have been able to fit 2 bedrooms and 2 bathrooms comfortably. If listing the ADU for rent is the goal, this can produce a higher yield, though at the cost of a higher initial investment. Jr. ADU, on the other hand, can only be a maximum of 500 sqft and must be built attached to the existing single-family home. While you can build an entire new addition to accommodate the Jr. ADU, it's not uncommon for homeowners whose homes are bigger than they need to convert a bedroom into a Jr. ADU in order to have additional income . A Jr. ADU does still require an efficient kitchen. Bathrooms can be shared with the main house, though this can deter some prospective tenants. Additionally, the utilities are oftentimes shared with the main house, which can simplify installation, though it can complicate utility costs with your tenant. When an ADU is Right Being able to build a full ADU provides an entirely separate and private living space, which is more desirable to prospecting tenants. This is the preferred choice for most investors, especially those who have unused space in their property. By being built apart from the main house, an ADU may cause less disturbance to those living in the main house, whether that be yourself or another tenant. In Long Beach, CA. ADUs can’t be listed as short-term rentals on apps like Airbnb; that being said, an ADU can command more in rent because of the aforementioned features. If you’re looking for a long-term investment, ADUs increase your property’s value while generating a consistent cash flow. Finally, if you ever plan on selling your rental property, the additional ADU can improve the appeal of your property to future buyers. When a Jr. ADU is Right While a Jr. ADU doesn’t have the same potential as a full-sized ADU, Jr. ADUs are far more budget-friendly. These are a great option for investors who have limited funds. Since Jr. ADUs generally require less work to be done in less time, allowing you to begin making a return sooner. Finally, if your property doesn’t qualify for a full-sized ADU permit due to the size of the property lot, a Jr. ADU can be built primarily through interior work, which may only require reconfiguring existing interior space. Whether you choose a full-sized ADU or a Jr. ADU, the decision depends on more than just the size of the structure, you’ll have to manage filling the vacancy and managing the new tenant. If you need help choosing which ADU is right for you or you need help managing your Beach City rental property, we invite you to call us today at (562) 888-0247 or complete our Owner Application online .
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