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Custom ADU Homes Built Across Los Angeles County
We build custom detached, attached, and garage conversion ADU homes across Los Angeles. Also, our licensed crews manage design, permits, and construction under one contract.
About Our Team
Building Modern ADU Homes for Los Angeles Property Owners
ADU Build LA creates modern ADU homes for multi-generational families and rental investors since 2009. Today, our own crews build each project from foundation to final inspection.
First, general remodelers split their attention across kitchens, roof repairs, and room additions. Instead, our trades focus exclusively on accessory dwelling unit construction throughout Los Angeles County. Because we handle local zoning rules every day, we navigate municipal plan checks faster. Our specialized crews understand foundation requirements, utility trenching, and California Title 24 energy standards. Therefore, our clients avoid costly design delays and keep projects moving efficiently forward.
Learn About Our Team
What We Do
ADU Services from a Los Angeles Design-Build Team
From feasibility through final inspection, one ADU builder handles your full scope so timelines and costs stay clear.
Plan your project with dedicated ADU builders Los Angeles homeowners trust for faster approvals, buildability, and rental value.
ADU Plans & Design
Our team acts as the expert ADU contractor Los Angeles cities work with daily, handling all submissions and correction responses.
ADU Permits & Approvals
Build ADU space with one accountable team managing construction quality, schedule, and trade coordination from start to final inspection.
Detached ADU Construction
Turn your garage into a legal rental unit with clear scope, practical ADU prices, and a faster path than most ground-up builds.
Garage to ADU Conversion
Create a compliant Junior ADU inside your current footprint for a lower-cost entry point and flexible family or rental use.
Junior ADU (JADU)
We help you check eligibility for the CalHFA $40,000 California ADU grant and pair it with the right construction loan for your project.
California ADU Grants & Financing
Build a standalone detached accessory dwelling unit in Los Angeles. Our in-house crews manage custom design, LADBS permits, and complete ground-up construction.
Detached ADU Construction
Turnkey prefab ADU and modular construction in Los Angeles. We manage site engineering, foundations, crane installation, and utility hookups.
Prefab & Modular ADU Installation
Hire a licensed ADU contractor in Los Angeles for architectural design, city permitting, and complete turnkey backyard construction.
ADU Contractor
Custom detached, attached, and garage conversion ADU homes built across Los Angeles County by licensed contractors.
ADU Homes
Build a new detached garage with an ADU apartment above in Los Angeles. We manage architectural plans, city permits, and ground-up construction.
Garage Apartment Construction
Custom permit-ready garage apartment plans and turnkey two-story ADU construction across Los Angeles.
Garage Apartment Plans
Build a custom granny flat in Los Angeles for aging parents. Accessible, single-story backyard suites with turnkey architectural and permit management.
Granny Flat
Turnkey ADU for sale packages in Los Angeles including architectural plans, permits, foundation, and complete construction.
ADU for Sale
Build a permitted small backyard house in Los Angeles on a permanent foundation. We manage architectural plans, city permits, and ground-up construction.
Backyard House Construction
Custom house plans with in law suite layouts and turnkey ADU construction for multi-generational Los Angeles homes.
House Plans With In Law Suite
Explore the complete ADU construction process in Los Angeles, from architectural design and LADBS permits to framing and certificate of occupancy.
ADU Construction Process
Custom permitted backyard studio ADUs for home offices, creative spaces, and guest suites built in Los Angeles County.
Backyard Studio
Why Los Angeles Homeowners Choose Our ADU Homes
Building a secondary residence requires specialized knowledge of California building codes and municipal utility standards. Furthermore, our dedicated project managers coordinate daily site activity to protect your timeline and budget. We eliminate subcontractor markups by employing in-house design, permitting, and construction specialists. As a result, you receive clear communication and consistent craftsmanship on your property.
- Single-source contracts covering architectural design, city permits, and complete construction
- Guaranteed fixed pricing with detailed scope breakdowns and zero hidden change orders
- Dedicated project managers providing weekly written status reports and photo updates
- Full compliance with LADBS standards and California Title 24 energy requirements
- Licensed California general contractor with active liability and workers' compensation coverage
- One-year workmanship warranty covering structure and finish craftsmanship
Our Build Process
Our Four-Step Construction Process for ADU Homes
We guide each project through four structured phases from initial property survey to final occupancy. Then, our experienced supervisors manage every inspection milestone directly with municipal building officials.
Site Prep & Foundation
First, our survey technicians verify property boundary setbacks and perform soil load tests. Next, crews excavate utility trenches and pour an engineered, steel-reinforced concrete slab foundation.
Framing & Weatherproofing
Our carpenters construct exterior load-bearing walls and install engineered roof trusses. After structural framing completes, we install energy-efficient windows and waterproof weather barriers.
Mechanical Rough-Ins
Licensed trades run dedicated plumbing lines, high-efficiency electrical circuits, and ductless heat pump HVAC systems. Then, city building inspectors verify all rough-in trades before we seal walls with insulation.
Interior & Exterior Finishes
Finally, finish crews install drywall, custom cabinets, durable quartz countertops, and interior doors. Once municipal officials sign the final permit, we deliver your certificate of occupancy.
Transparent Pricing
Transparent Pricing for Custom Los Angeles ADU Projects
We offer upfront, predictable pricing for every accessory dwelling unit model we construct. Because every property has unique topography, we confirm exact construction scopes during on-site assessments.
- Complete architectural plans, structural engineering calculations, and Title 24 energy documentation
- Full municipal permit processing and plan check coordination with local building departments
- Complete site preparation, reinforced concrete slab foundation, and utility trenching
- Turn-key interior and exterior construction with premium fixtures, appliances, and HVAC
Prices reflect base construction costs for standard Los Angeles County residential building sites. However, severe hillside slopes, extended utility trench runs, or electrical panel upgrades require custom site pricing.
Get a Free Estimate for ADU Homes
Tell us about your property and your goals. We'll review your site and provide a detailed cost and timeline estimate at no charge, with no obligation.
- Property feasibility review at no cost
- Realistic cost range based on your specific lot
- Estimated timeline from design through occupancy
- Response within 1 business day
No spam. No pressure. We serve homeowners across Los Angeles County.
Request Your Free Estimate
We'll be in touch within 1 business day.
Common Questions
ADU Homes: Frequently Asked Questions
What Los Angeles homeowners ask most before starting an ADU project.
What different types of ADU homes can I build on my property?
What size limitations apply when building ADU homes in Los Angeles?
How long does the city permitting and construction process take?
Can I rent out my backyard ADU to long-term tenants?
What utility connections does a secondary accessory unit require?
Can I build an ADU for aging parents or adult children?
Do I need to provide replacement parking when I build an ADU?
Will adding an accessory home increase my Los Angeles property taxes?
Need help planning your ADU project?
Talk with an ADU specialistWhere We Build ADUs in Los Angeles County
We build high-performance accessory dwellings across major municipalities in Los Angeles County. Because local city zoning offices apply unique permit standards, our experienced staff navigates municipal rules efficiently. Explore our dedicated regional guides to review local setbacks and planning guidelines for your community.
Fast-track permitting and building through LADBS.
Expert custom detached and garage conversions.
Architectural designs adhering to local historic guidelines.
Coastal zoning compliance and modern energy efficiency.
Streamlined plan review and precision construction.
Hillside engineering and high-quality residential finishes.
Cities, Models & Projects
Discover where we build, which ADU models fit this service, and completed projects from our portfolio.
ADU Builder in Encino
Licensed Encino ADU Builder
ADU Builder in Studio City
Serving Studio City
ADU Builder in Pasadena
Licensed ADU Contractor in Pasadena
ADU Builder in Burbank
Licensed ADU Contractor in Burbank
ADU Builder in Sherman Oaks
Licensed Sherman Oaks ADU Contractor
ADU Builder in Culver City
Licensed Culver City ADU Contractor
ADU Builder in San Fernando Valley
Licensed San Fernando Valley ADU Builder
ADU Builder in Santa Monica
Licensed Santa Monica ADU Builder
ADU Builder in Venice
Serving Venice
ADU Builder in West Hollywood
Licensed ADU Contractor in West Hollywood
ADU Builder in Torrance
Licensed Torrance ADU Contractor
ADU Builder in Los Angeles
Licensed ADU Contractor in Los Angeles
ADU Builder in Glendale
Serving Glendale
ADU Builder in Long Beach
Licensed Long Beach ADU Contractor
ADU Builder in El Segundo
Licensed South Bay ADU Builder
ADU Builder in Woodland Hills
Licensed Woodland Hills ADU Builder
2 Bed 750
Two private bedrooms, maximum rental income, and genuine multigenerational living space.
Garage Conversion 450
Convert your existing garage into a fully permitted, income-generating ADU, providing the fastest and most affordable path.
1 Bed 650
A spacious one-bedroom ADU with room to breathe, designed to attract quality long-term tenants.
Want to See What Your ADU Could Look Like?
Our interactive configurator lets you choose type, size, finishes, and exterior style, showing you matching floor plans with a live budget estimate.
Start Designing Your Los Angeles ADU Today
Schedule a free on-site property feasibility consultation with our experienced construction estimators.