If you’re in Los Angeles and struggling with parking, cramped living spaces, or just dreaming of making better use of your property, there’s a surprisingly simple solution: build an ADU above your garage.
Yep, that unused space above your garage can be transformed into something amazing. Whether it’s a cozy studio apartment, a remote work office, a private guest suite, or even a rental unit that brings in passive income, the potential is massive. And with LA’s rising housing demand and flexible zoning laws, there’s never been a better time to start your ADU construction journey.
Let’s dig into all the ways you can turn your garage into a functional, stylish, and valuable addition to your property.
What Is an ADU and Why Build One Above Your Garage?
An ADU, or Accessory Dwelling Unit, is a small, self-contained living space built on the same property as a main home. Think of it like a mini house: it can include a bedroom, bathroom, kitchen, and living area—all in a compact footprint.
So, why build an ADU above your garage?
Here are a few standout benefits:
Preserve Parking Space: You don’t lose garage parking while gaining living space.
Elevated Views & Privacy: Upper-level units have better light, air flow, and separation.
Smart Use of Space: You already have the garage foundation, so build up!
Increase Property Value: Add significant square footage and functionality.
5 Creative Ways to Use an Above-Garage ADU
When you build an ADU above your garage, it opens the door to all sorts of possibilities—literally. Whether you’re looking to expand your family space or earn extra income, here are some great ways to put that ADU to work:
1. Private Home Office
With so many people working remotely in LA, a quiet, detached workspace is gold. No more Zoom calls from the kitchen table—turn that above-garage ADU into a focused, inspiring office space.
2. Rental Income Unit
With LA rental prices soaring, having a legal ADU can be a serious money-maker. Airbnb or long-term lease, your space could pay for itself within a few years.
3. In-Law or Guest Suite
Perfect for visiting family or aging parents. Include a kitchenette and private bathroom so guests have everything they need.
4. Teen Hangout or Game Room
Give older kids or teens a space of their own (but still within reach). Add soundproofing and comfy seating for the ultimate movie or gaming room.
5. Artist Studio or Creative Loft
Natural light and quiet vibes? Check. If you’re an artist, musician, or content creator, this space could become your new creative haven.
Build an ADU Above Your Garage: What You Need to Know
Building vertically is a smart way to save space and maximize your lot—but it’s not as simple as slapping on a second story. Here’s what to consider when planning to build an ADU above your garage.
Key Factors to Consider:
| Factor | Why It Matters |
| Structural Integrity | Can your garage support a second story? May require reinforcement. |
| Access & Stairs | Interior vs. exterior staircases affect design and usability. |
| Zoning Requirements | LA zoning laws regulate height, setbacks, and size. |
| Parking Requirements | Some neighborhoods require replacement parking. |
| Utilities & Plumbing | Hookups for water, power, and sewer must be planned upfront. |
Cost Breakdown: How Much Does It Cost to Build an ADU Above Your Garage?
The cost to build an ADU above your garage in Los Angeles varies depending on size, materials, design complexity, and whether your garage needs structural upgrades.
Estimated Cost Breakdown
| Item | Average Cost (Los Angeles) |
| Structural Reinforcement | $10,000 – $25,000 |
| ADU Design & Permits | $7,000 – $15,000 |
| Construction (Basic Finish) | $150,000 – $250,000+ |
| Utilities (Hookups, Systems) | $10,000 – $30,000 |
| Staircase (Interior/Exterior) | $5,000 – $10,000 |
Pro Tip: While the initial investment may seem hefty, a well-designed ADU can pay off by increasing your property’s resale value and generating passive income.
The ADU Construction Process, Step-by-Step
Thinking it’s time to build an ADU above your garage? Here’s what the process typically looks like from start to finish:
1. Initial Consultation
Work with an experienced ADU construction company like All County Development to evaluate your existing garage, your goals, and the feasibility of your vision.
2. Site Inspection
A structural engineer will assess whether your garage can handle a second story. Reinforcements may be necessary.
3. Design & Planning
Design your ADU layout, select materials, and prepare for permits. Think about window placement, natural light, and privacy.
4. Permitting
City permits must be submitted and approved. This includes zoning compliance, building permits, and sometimes historical or HOA review.
5. Construction Begins
Your garage gets retrofitted, and the ADU begins to take shape above. This includes framing, electrical, plumbing, roofing, insulation, and finishes.
6. Final Inspection & Move-In
Once the ADU passes inspection, it’s ready to go! Whether you’re moving in with a loved one or welcoming your first tenant, it’s time to enjoy your new space.
Design Tips for Your Above-Garage ADU
To truly maximize your space when you build an ADU above your garage, design matters. You want it to feel open, bright, and functional.
Smart Design Ideas:
1. Vaulted Ceilings: Make the space feel bigger and brighter.
2. Skylights: Bring in natural light without sacrificing privacy.
3. Built-In Storage: Maximize every square foot.
4. Neutral Colors: Light colors make small spaces feel larger.
5. Mini Appliances: Save space while maintaining full functionality.
Must-Have Features:
Full bathroom with walk-in shower
Compact but complete kitchen
Separate entrance for privacy
Washer/dryer combo (stacked or all-in-one)
Top Reasons to Build an ADU Above Your Garage
Here’s a quick roundup of why so many LA homeowners are opting to build an ADU above their garage:
1. You Keep Your Parking
Still have access to your garage for cars, tools, or storage.
2. Rental Income
Make $1,500–$3,000/month depending on location and features.
3. Multigenerational Living
A perfect solution for family members who need independence.
4. Boost Home Value
Properties with ADUs sell faster and for more in competitive markets.
5. Future Flexibility
Today’s guest suite could be tomorrow’s home office—or vice versa!
Common Mistakes to Avoid
When you’re planning to build an ADU above your garage, avoid these pitfalls:
1. Skipping structural analysis – Your garage might not support the added weight.
2. Underestimating permitting timelines – Approvals can take weeks or months.
3. Neglecting insulation/soundproofing – This is key to creating a comfortable space.
4. Using cheap materials – You’ll pay more in repairs down the line.
5. Choosing inexperienced contractors – Work with pros in ADU construction for peace of mind.
Build an ADU Above Your Garage Today
When you build an ADU above your garage, you’re doing more than just adding a room—you’re transforming your lifestyle, boosting your property’s value, and giving yourself more flexibility. Whether you’re solving a parking crunch or planning ahead for family or tenants, this smart vertical solution just makes sense in Los Angeles.
And if you’re just beginning to explore ADU ideas, start by talking to a trusted expert in ADU construction who can walk you through zoning, structural needs, and custom design options.
Want to dive deeper into garage projects? Don’t miss our next blog: Is a Detached Garage Considered a Dwelling? What You Need to Know—it breaks down everything you need to know about garage zoning and how it might affect your future ADU plans.
Here’s to building smarter, living better, and maximizing every inch of your property—especially the space above your garage!