Hawthorne ADU Builder - Design, Permits & Construction
We are a local ADU design-build firm based in Hawthorne, CA. From planning and permits to full construction, we help homeowners across Los Angeles County build high-quality ADUs, garage conversions, and second-story additions.
Your Hawthorne-Based ADU Team
Direct ADU’s main office is located on S Inglewood Ave in Hawthorne, CA. From this headquarters, our team manages ADU projects throughout Los Angeles County. We know the local zoning rules, building departments, and neighborhood conditions, and we use that experience to help Hawthorne and nearby homeowners add value and living space to their properties.
ADU Services We Provide from Our Hawthorne Office
From our Hawthorne headquarters, we provide:
Detached ADUs
Build new, stand-alone ADU structures in backyards.
Attached ADUs & Over-Garage ADUs
Add living space connected to the main home or above garages.
Two-Story ADUs
Design and build multi-level ADUs where allowed by local codes.
Garage Conversion ADUs
Convert existing garages into fully approved living spaces.
ADU Plans & Engineering
Architectural plans, structural engineering, Title 24, and more.
Permits & Approvals
Handling plan submittal, corrections, and approvals with local departments.
Turnkey ADU Construction
From foundation and framing to finishes and inspections.
Direct ADU - Hawthorne Headquarters Office
11853 S Inglewood Ave, Hawthorne, CA 90250
(424) 407-8787
Office Role:
This location serves as our main headquarters and operations center. From here we coordinate ADU projects across Hawthorne, Inglewood, Torrance, Gardena, Redondo Beach, West Los Angeles, and surrounding areas.
Next Step:
Contact us to schedule a free ADU review, and we’ll help you understand what’s possible on your property.
Visit our Los Angeles Hawthorne Headquarters office office or schedule a free on-site ADU property evaluation anywhere in Mid-City or the surrounding area.
Nearby areas we serve from our Hawthorne headquarters office:
Hawthorne, Inglewood, Gardena, Lawndale, Lennox, and surrounding South Bay and Los Angeles neighborhoods.
Our Work
Recent ADU Projects Near Our Hawthorne Office
Hawthorne (2024)
650 sq ft Garage Conversion ADU
Gardena (2025)
1,000 sq ft Detached ADU
Inglewood (2025)
1,000 sq ft Detached ADU
Lawndale (2024)
800 sq ft Two-Story ADU
Los Angeles-Hawthorne ADU FAQs
Frequently Asked Questions About ADUs
Here are some of the most common questions we get from homeowners in Hawthorne, Inglewood, Gardena, and the surrounding South Bay areas about building an ADU.
What types of ADUs can I build on my property?
In most parts of Los Angeles County, including Hawthorne, homeowners can usually build a detached ADU, an attached ADU, or a garage conversion ADU. The exact size and layout depend on your lot, existing house, and local zoning rules. During your free ADU review, we look at your property and tell you what is realistically possible.
Do you handle the plans, engineering, and permits for me?
Yes. Direct ADU is a full design-build team. We prepare the architectural plans, structural engineering, Title 24, and all required documents, and we submit them to the city on your behalf. We also respond to plan check comments and work with the city until your ADU is approved.
Can you convert my existing garage into an ADU?
In many cases, yes. Garage conversions are one of the most popular ADU types in Hawthorne and surrounding cities. We check setbacks, existing structure, and parking requirements, and then design a layout that works with your existing garage shell. We also upgrade the structure, insulation, plumbing, and electrical so it meets current code.
Do I need to move out of my home during construction?
For most ADUs, you can stay in your main home while we build. There will be noise and activity during working hours, but we coordinate access, deliveries, and inspections to minimize disruption. If any short-term access limits are needed, we discuss them with you in advance.
Direct ADU
Direct ADU is a Los Angeles County-based design-build firm specializing in ADUs, garage conversions, and complete ADU construction. From planning and permitting to full turnkey construction, we deliver functional and beautiful living spaces for homeowners throughout Hawthorne, Inglewood, West LA, Torrance, and surrounding areas.
Direct ADU - Headquarters
11853 S Inglewood Ave,
Hawthorne, CA 90250
Areas We Serve: Hawthorne, Inglewood, Torrance, Gardena, Redondo Beach, Long Beach, El Segundo, West Los Angeles, Culver City, Beverly Hills, Santa Monica, Pasadena, and nearby communities across Los Angeles County.
© Direct ADU, 2025, All Rights Reserved.