Add a rental, a guest house, or a private studio.
Detached ADUs, attached additions, and garage conversions — designed for LA's zoning rules and built to add immediate income and equity.
Reliable adu & garage conversion for Los Angeles homes & businesses.
California's ADU laws have made building a second unit on your lot easier than ever — but the process still involves zoning, planning, utilities, and structural work that most homeowners shouldn't navigate alone.
Marc's Construction builds ADUs and garage conversions across LA from concept to certificate of occupancy. We handle plans, permits, and construction so you end up with a permitted, rent-ready unit.
Everything your adu & garage conversion project needs — under one roof.
Detached ADU Builds
Ground-up studios, 1-bed, and 2-bed detached units up to 1,200 sqft.
Attached ADUs
ADUs integrated with the existing home and shared utility infrastructure.
Garage Conversions
Convert existing garages into compliant living units.
JADU Builds
Junior ADUs (up to 500 sqft) within the existing home footprint.
Plans & Permits
Architectural, structural, Title 24, and LADBS submittal.
Utility Service Upgrades
Separate meters, panel upgrades, sewer taps, and gas lines.
The benefits homeowners feel from day one.
Rental Income
LA ADUs typically generate $1,800–$3,500/mo in rent.
Multigenerational Living
Private space for parents, adult children, or guests.
Property Value Boost
Permitted ADUs add substantial appraised value.
Fast LA Permit Path
State law caps ADU review times and limits city pushback.
A clear, predictable path from idea to final walk-through.
- Step 1
Site & Zoning Review
Lot analysis, setbacks, and unit-type recommendations.
- Step 2
Design
Floor plans, elevations, and material selections.
- Step 3
Permitting
LADBS submittal, utility coordination, and approvals.
- Step 4
Construction
Foundation, framing, MEP, exterior, and interior finishes.
- Step 5
Final Inspection & C of O
City inspections and certificate of occupancy.
The Marc's Construction difference on every adu & garage conversion project.
We don't subcontract accountability. Every project gets a dedicated manager, transparent pricing, and a written workmanship warranty.
- Dozens of permitted ADUs delivered across LA County
- Specialists in LADBS ADU submittal corrections
- Trusted partnerships with structural engineers
- Fixed-price contracts with rent-ready turnover
Recent adu & garage conversion work across Los Angeles.
Let's plan your adu & garage conversion project.
Free on-site visit. Written estimate within one business day. Trusted by local Los Angeles homeowners.
Answers about adu & garage conversion.
Don't see your question? Call us — we're happy to walk you through anything.
California law allows up to 1,200 sqft detached ADUs by right on most lots. Local rules may permit larger.
Often paired with adu & garage conversion.
Get a free adu & garage conversion estimate.
Tell us about your project. We typically respond within one business day to schedule your complimentary consultation.