ADU's - Accessory Dwelling Units

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Garage Conversions

Garage Conversion Highlights:

  1. Full Set of Permitted Blueprints

  2. Complete Construction Build to Code

  3. Water, Sewer, Electrical & Gas Supply Lines

  4. A/C Unit, Electrical Sub Panel, Water Heater

  5. Full Kitchen & Bathroom

Starting as low as $70K!


Garage Conversion in Los Angeles – Accessory Dwelling Unit (ADU)

When you need more living space for your family, adding a new room to your home is the first solution that comes to mind. But building a new room from the ground up is an expensive and complex project. The easier and more affordable alternative is to convert your garage into a great living space. After all, your garage already consists of a foundation, four exterior walls and a roof. The second, but equally important reason behind the garage conversions Los Angeles that we build is to provide an additional, fully independent housing unit, separate from the main home.

What is an ADU and Why Should You Consider It?

An Accessory Dwelling Unit, also known as an ADU, is an additional unit on a single-family property. An ADU may or may not be attached to the primary building. Typically, ADU conversions are smaller than the main family home having a maximum allowable size of 1200 square feet or 50% of the homes living area, whichever is less. Finally, ADUs are fully independent living spaces, equipped with their own electrical sub-panel, air-conditioning and heating unit, plumbing and hot water heater, kitchen and bathroom.

Types of ADU include, a detached garage conversion ADU, an attached ADU above garage conversion, attic conversion, and finally an attached garage conversion. Preferred Home Builders is a specialist in ADU Garage Conversions in the Los Angeles area.

The state law governing Garage Conversions for Los Angeles gave homeowners the right and opportunity to build a secondary dwelling onto their existing property. On September 27th, 2016, Governor Brown signed two accessory dwelling unit bills into State law, Assembly Bill (AB) 2299 and Senate Bill (SB) 1069 that amended the State’s existing second unit law (Government Code Section 65852.2). These amendments to the existing second unit law went into effect on January 1, 2017.

These secondary units, now called accessory dwelling units (ADUs), have been identified by the State as providing an important housing option to both potential renters and homeowners. They typically cost less than other types of housing, provide convenient housing for family members, help ease a severe rental housing deficit, maximize limited land resources and existing infrastructure, and assist homeowners with supplemental income.

The opportunity is clear, this newly converted living space can be used as a rental property and adds to the livable square footage area of your existing home. The net result is a converted garage space into a beautiful living area and an increased value of your home.

Updated laws effective January 2020

The State Legislature updated the law governing ADUs effective January 1, 2020 to clarify and facilitate the development of ADUs and junior accessory dwelling units (JADUs). One major change is the ability to build a concurrent ADU and JADU on a single-family zoned property. Other modifications include, limited exemptions or reductions in impact fees, and reduced parking requirements. Click here to view the complete Accessory Dwelling Unit Technical Assistance Memo from the California State Department of Housing and Community Development for more information.

What’s are JADUs?

A Junior Accessory Dwelling Unit (JADU) is similar to an regular ADU. The main difference being a JADU must be attached to the existing single family residence either in existing space or as an addition to the home, up to a maximum size of 500 square feet. A JADU uses existing home infrastructure systems like HVAC, electricity and plumbing. It may contain a basic kitchen and share a bathroom with the main home, all in an effort to reduce the build costs.

At Preferred Home Builders, we have wide range of completed projects, giving us a broad experience in adding existing rooms on to garages and converting garages into beautiful rooms. Before starting the construction and remodeling project, we’ll conduct an in-depth assessment and analysis of your home and prepare the necessary working project plan. Then we’ll get to work, taking into consideration even the smallest detail or design change.

What are the main benefits of an ADU?

  • Converting an existing garage structure
  • Affordable construction on existing land
  • Provides additional source of income through renting the unit
  • Provides flexibility and independence to families with aging parents
  • Cost-effective way of adding additional living space to your home
  • Adds a private, independent area for extended family or friends

Garage Conversion as an Investment

  • Immediately adds value to your existing property when the project is complete
  • Leverage the new living space as a rental to supplement monthly revenue
  • Use it as a multi-generational suite or guest house, providing an option to parents, relatives or friends to stay with you with added privacy and comfort


Your building is visited, photographed and measured to provide an accurate quote for the purposes of bringing your building up to full compliance with Ordinance 183893. We explain every step of the way from the beginning to the end of the entire process. Best practices for Engineering, THP, Financing, Construction, Cost Recovery and More.


We do the work necessary to research both sides of the “contract” and present you with the best options for YOUR UNIQUE CIRCUMSTANCES, and we’ll provide you up to four unbiased, comparable & competitive quotes showing, price, scope of work, timeline and enough info for you to make a sound decision. We help eliminate the surprises and keep everyone on their toes.


We know who’s who in the industry and can match you with the best professionals to provide you with a peace of mind. We will explain Tenant Habitability Program and Cost Recovery Options. We can share information about financing options.


Making sure we do an apples to apples comparison and that your expectations are met, if not exceeded, from start to finish.


Our pledge is to make sure that you have the best experience possible under your circumstances. We get one shot, let’s make sure it’s on target. We will share our resources, because the more you know, the more you will benefit.


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