Apex ADU Builders: Accessory Dwelling Unit Construction in Los Angeles
Apex ADU Builders is a full-service ADU contractor based in Los Angeles, specializing in helping homeowners design and build accessory dwelling units on their existing properties. From the initial consultation through to final construction, they manage the entire process under one roof, serving as a single point of contact for homeowners throughout the project.
Accessory dwelling units — also historically referred to as mother-in-law suites, in-law units, backyard cottages, or granny flats — are self-contained living spaces that can be built on a residential property. They typically include a bedroom, bathroom, and kitchen, and can be either attached or detached from the primary residence. In California, building an ADU generally requires only a building permit rather than a full rezoning process, which simplifies the path to construction compared to other types of residential development.
Between 2017 and 2019, California permitted over 26,600 ADUs, reflecting growing demand driven in part by the state's ongoing housing shortage. In Los Angeles, where the median rent for a one-bedroom apartment reached $2,475 in 2022 and has continued to rise, ADUs have become an increasingly practical option for homeowners looking to generate rental income or accommodate family members.
Services Offered by Apex ADU Builders
Apex ADU Builders offers a range of services covering the full lifecycle of an ADU project:
- New Construction: For properties with available land, Apex ADU Builders can construct a fully detached ADU from the ground up. This is the most customizable option and allows homeowners to tailor the layout and features to their specific needs.
- Garage Conversion: Existing garages can be converted into a functional living unit. This is often a more cost-effective approach, with typical costs ranging from $80,000 to $120,000 depending on the scope of work.
- Planning and Permitting: The team handles the preparation and submission of all required paperwork, drawings, and documentation needed for city or county approval. This includes ensuring compliance with local building codes, regulations, and ordinances.
- Blueprint and Design: Apex ADU Builders works with homeowners to develop customized floor plans and design options, incorporating specific features and finishes as needed.
- Property Evaluation and Market Analysis: Before construction begins, the team evaluates the property for eligibility and conducts a market analysis to help homeowners understand the potential rental value of the completed unit.
The overall cost of building an ADU in Los Angeles varies depending on size, features, and construction type. New construction can range from approximately $100,000 to $400,000, while garage conversions tend to fall between $80,000 and $120,000. Factors such as high-end finishes, additional stories, or specialized features like soundproofing or custom storage can increase costs significantly.
From a financial standpoint, ADUs can offer a meaningful return on investment. Homes with an ADU tend to see an average ROI approximately 35% higher than comparable homes without one. Renting an ADU in Los Angeles for around $2,000 per month could generate roughly $24,000 in annual income, in addition to any increase in the property's resale value.
Los Angeles ADU Requirements
California has passed several laws since 2017 to make ADU construction more accessible. However, properties in Los Angeles must still meet specific criteria before construction can begin:
- The property must be a single-family home — multi-family dwellings are not eligible.
- The ADU cannot exceed 50% of the square footage of the primary structure.
- All necessary permits and approvals must be obtained from the city prior to construction.
- An additional parking space may be required if the property is located more than half a mile from public transportation.
Apex ADU Builders assists homeowners in navigating these requirements, from determining property eligibility to submitting permit applications with the Department of Regional Planning or the relevant local authority. Their process begins with a free initial consultation, during which project goals are discussed and the property is assessed for suitability.
For homeowners in Los Angeles considering adding a detached ADU, casita, in-law suite, or converting an existing garage into a livable space, Apex ADU Builders provides a structured, end-to-end service designed to manage the complexity of the process on the homeowner's behalf.
