Los Angeles ADU &
JADU Specialists.
Turn Your Lot Into Income.
Navigate Los Angeles zoning laws effortlessly. From Garage Conversions in the Valley to Detached Guest Houses in the Hills, we handle the design, LADBS permitting, and construction of your income-generating unit.
5-Star Rated on Google, Yelp & Angi.
Trusted by LA Homeowners.
The GAGA Difference
-
We Navigate LADBS For You LA city permitting is notoriously complex. We handle all zoning checks, Title 24, and inspections.
-
Generate Passive Income Turn your garage or backyard into a rental unit. Offset your mortgage with high-demand LA housing.
-
Multigenerational Living Create private, comfortable space for aging parents or adult children right on your property.
ADU & Home Additions
Maximize your Los Angeles property. From income-generating rental units to luxury master suite expansions, we handle the design, permits, and build.
Independent Living Units
Generate passive income or house family privately.
Detached ADUs
The ultimate "Rental Machine." Build a standalone guest house in your backyard for maximum privacy.
- Maximum Privacy
- Highest ROI Potential
- Full Kitchen & Bath
Garage Conversions
The affordable path to an ADU. Transform underutilized garages into modern studios without heavy demolition.
- Cost-Effective Build
- Fast Permitting
- No New Footprint
Junior ADUs (JADU)
Maximize efficiency using SB 9 laws. Convert a spare bedroom or attached garage into a < 500 sq. ft. unit.
- Space Saving
- Efficiency Unit
- SB 9 Compliant
Residential Expansions
More square footage for your main home.
Room Additions
Expand Your Home,
Keep Your Address
Love your neighborhood but outgrowing your house? Seamlessly add a Master Suite, Family Room, or Sunroom that matches your existing architecture.
Attached ADUs (In-Law Suites)
We extend your main structure to create a private unit that shares walls but keeps lives separate.
- Multigenerational Living
- Shared Utilities (Savings)
- Seamless Design Match
Second Story Addition
Small lot? Build up. We add a second floor to double your square footage without sacrificing your backyard space.
- Double Your Sq. Ft.
- Save Backyard Space
- Complex Structural Engineering
Building an ADU is Complex.
Don't Risk Your Investment.
In Los Angeles, a "low bid" often leads to stalled permits and expensive utility nightmares. We bridge the gap between a cheap quote and a legal, income-generating unit.
The "Budget" Trap
Failed Inspections
Many contractors don't understand the specific LADBS Title 24 energy codes for ADUs, leading to failed inspections and work stoppages.
Utility Surprises
The most expensive part of an ADU is often trenching for sewer and electric. Budget contractors hide these costs until it's too late.
Unrentable Units
If your ADU isn't permitted correctly, you cannot legally rent it out or list it on Airbnb. It becomes a liability, not an asset.
Turnkey Peace of Mind
We Handle LADBS
We navigate the entire process with the City of LA. Your ADU will be 100% legal, permitted, and safe for your family.
Fixed-Price Contracts
Our detailed scopes include utility connections and finishes. You know exactly what you are paying for with zero hidden fees.
Rental-Ready Delivery
We don't just build a shell. We deliver a fully finished, functional home that is ready for tenants or family members on day one.
Licensed General B Contractor
Choose Your ADU Journey
Partnership
To Production
Don't have blueprints? We connect you with our network of licensed architects to handle the design, while we manage the execution.
1. Concept
We refer you to trusted, licensed architects for 3D plans.
2. Coordination
We coordinate with your designer & city for permit approval.
3. Construction
Full execution: Foundation, framing, and finishes.
4. Handover
Final inspection & Certificate of Occupancy.
Ready To
Build Now
Already have your designs and permits? We take your existing RTI (Ready to Issue) plans and turn them into reality immediately.
1. Review
We analyze your existing approved plans & budget.
2. Mobilize
Site prep, demolition, and material ordering.
3. Build
Rapid construction according to your prints.
4. Keys
Inspection pass and final handover.
Ready to transform your lot?
Schedule your free consultation today.
Building for Income & Property Value
Building an ADU is not just construction; it is an investment strategy. Whether utilizing SB 9 zoning laws to split your lot or converting a garage for passive income, we handle the complex LADBS logistics so you can focus on the return on investment (ROI).
SB 9 & Zoning Experts
We analyze your lot's setbacks and FAR (Floor Area Ratio) to maximize the square footage of your rental unit.
Rental-Ready Delivery
We build durable, low-maintenance units designed specifically for tenants, protecting your long-term ROI.
Utility Management
We handle the complex trenching, separate metering, and electrical panel upgrades required for legal ADUs.
Fast-Track Permitting
We know which ADU pre-approved plans work best in LA to speed up the LADBS approval timeline.
ADU Compliance Checklist
Don't get stuck in red tape. We ensure your new unit meets every City of Los Angeles requirement.
LA Construction Costs (2026)
Construction costs in Los Angeles vary by finish level and site conditions. Below are typical starting ranges for permitted, turnkey projects.
Garage Conversion (ADU)
- Utilizes Existing Structure
- Includes Kitchen & Bath
- LADBS Permits Included
- ! Best for: Entry-Level Investment
Detached Guest House
- Ground-Up Construction
- Separate Utilities & Address
- 800 - 1,200 Sq Ft Models
- ! Best for: Maximum Rental Income
Home Additions
- Attached Room Expansion
- Structural Engineering
- Seamless Interior Matching
- ! Best for: Master Suites & Family Rooms
Trusted by Los Angeles
"Arsen was great! The team finished the installation a day early. The walnut vinyl looks exactly like wood but I don't have to stain it!"
Sarah M.
Sherman Oaks"Best price in Ventura County. They handled the slope in my backyard perfectly with the racking method. Highly recommend."
David L.
Thousand Oaks"I was worried about the ocean mist ruining a wood fence. This PVC material is a game changer. Zero maintenance so far."
Jessica R.
Santa MonicaCommon Questions
Answers about property taxes (Prop 13), rental laws, timelines, and LADBS requirements.
Will building an ADU trigger a property tax reassessment?
Generally, no. Under Prop 13, building an ADU typically does not trigger a reassessment of your existing main home's value. The county assessor will usually only add the value of the new construction (the ADU itself) to your property tax bill. This is a huge advantage for long-term Los Angeles homeowners.
Can I rent out my ADU or Garage Conversion?
Yes! You can legally rent out your ADU for long-term tenants (30+ days). This is excellent for passive income to offset your mortgage. However, Los Angeles has strict restrictions on short-term rentals (like Airbnb/Vrbo) for ADUs unless it is your primary residence. We recommend planning for stable, long-term rental income.
How long does it take to build an ADU in LA?
Realistically, you should expect 6-9 months from start to finish. The design and LADBS permitting phase typically takes 3-4 months (though using Pre-Approved Plans can speed this up). Once permits are issued, actual construction usually takes 3-5 months depending on the size and utility complexity.
Do I need to upgrade my electrical panel?
In most cases, yes. Adding a new kitchen, laundry, and HVAC system for an ADU requires significant power. If your main house has an older 100-amp panel, LADBS will likely require an upgrade to a 200-amp panel to handle the load. We handle the coordination with LADWP to get this approved and installed.
Contact Us
Start Your Transformation
We are ready to bring your vision to life. Whether it's a new fence, a room addition, or a complete remodel, GAGA US Construction delivers excellence.
Call Us
747-609-6912Email Us
info@gagaconstruction.comVisit Us
Glendale, CA 91203
Working Hours
Mon - Fri: 8am - 6pm
Proudly Serving These Communities
Los Angeles, Glendale, Pasadena, Burbank, Santa Monica, Beverly Hills, West Hollywood, Sherman Oaks, Studio City, Encino, Tarzana, Woodland Hills, Northridge, Van Nuys, Silver Lake, Echo Park, Los Feliz, Hollywood Hills, West Adams, Hancock Park, Culver City, Venice, Marina Del Rey, Pacific Palisades, Malibu, Calabasas, Agoura Hills, Thousand Oaks, Westlake Village, Porter Ranch, Granada Hills, Chatsworth, North Hollywood, Toluca Lake, Eagle Rock, Highland Park, Mt. Washington, Altadena, La Cañada Flintridge, San Marino, South Pasadena, Alhambra, Arcadia.
Get Your Free Estimate
Fill out the form below and we will get back to you within 24 hours.