Garage Conversion In California
We transform that old garage in a beautiful space with ease — let’s get started today!
Enjoy the convenience of working with one reliable partner to transform your old and unused garage in a luxury addition. You can rent it, bring in-laws or add more property value

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Cover all Orange County Area
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Sustainable Construction Practices
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Skilled and Diverse Workforce
Why I Need a Garage Conversion



about us
Our Services
We simplify the complexities of ADU development with a full-service approach encompassing everything from design and architecture to permitting and construction.
Our goal is to provide a streamlined experience tailored to your specific requirements. We’re committed to turning your vision into reality and ensuring you enjoy the journey while achieving outstanding results.
Garage Conversion vs Another Floor
What about another floor?
A Garage Conversion is better because:
- fewer permits
- lower labor costs
- reduced overall expenses
- provide a seamless way to expand your living area into a functional space
Custom ADU Homes
ADUs are the future of home living, offering rental income, extra space or a private office
ADU Design Build
Expand your living space, boost property value, and earn extra income with an ADU from L Square Construction
Garage Conversion ADU
L Square Construction specializes in high-quality garage conversion ADUs that add living space, rental potential, or a private office
Backyard Cottage Construction
Looking for a cozy cabin or cottage in Los Angeles?
Granny Flat
We build high-quality granny flats adapted to their needs.
In-law Suite
We design stylish, private spaces to keep loved ones close.
Design
Plans
Engineering
Transforming your vision into a practical, appealing Garage in Anaheim

We work closely with you to create a personalized design perfectly tailored to your needs and style.
Turning your design ideas into permit-ready architectural documents

We create precise architectural plans that communicate your design and meet all permitting requirements.
Ensuring structural and system integrity for your Garage in Anaheim

Our engineers deliver detailed plans that guarantee safety, reliability, and compliance with regulatory standards.
our services
Turning Ideas into Concrete Realities
Explore the possibilities with our expert design and building services, and turn your garage into a valuable extension of your home.
Transform Your Garage into a Functional Living Space
Convert your unused garage into a stylish, functional living area, ideal for guest rooms, home offices, or rental units.
Increase Property Value
A professionally designed garage conversion can boost your property’s market value while offering additional usable space.
Expert Design and Building Services
With years of experience in garage conversions, we provide seamless project management, from initial design to final touches.
Customized Solutions to Fit Your Needs
Whether you’re looking to create a home gym, extra bedroom, or entertainment space, our team tailors the design to your specific needs.
we ready to make your dream into reality
Tips for a Garage Conversion for an In-Law Suite for your in-laws
When planning a garage conversion in California for an in-law suite, careful consideration and thoughtful design are key to creating a comfortable, functional living space. Here are some essential tips to ensure your conversion is optimal:
Check Local Building Codes and Permits
Before starting, make sure to research Anaheim’s zoning laws and building codes. Securing the necessary permits will save you from potential legal issues down the line.
Consider Insulation and Ventilation
Garages are typically not insulated or ventilated like living spaces. Proper insulation will regulate temperature and keep the suite comfortable year-round, while good ventilation ensures fresh air circulation.
Plan for Natural Light
Adding windows or skylights can transform a dingy garage into a bright and inviting living area. Natural light greatly enhances the mood and livability of the space.
Maximize Layout Efficiency
Design the layout to include essential amenities such as a bedroom, bathroom, kitchenette, and storage. Use multi-functional furniture and smart storage solutions to make the most of limited space.
Upgrade Electrical and Plumbing Systems
Depending on your design, you may need to upgrade or install new electrical outlets, lighting, and plumbing fixtures. Hiring licensed professionals for this work is crucial for safety and compliance.
Soundproofing for Privacy
Because the suite may be close to the main house or neighbors, soundproofing walls and ceilings can provide privacy for both the in-law suite occupants and the main household.
Focus on Accessibility
Design the entryway, interior doors, and bathroom with accessibility in mind. Features such as ramps, wider doorways, and grab bars can make the space more comfortable for seniors or those with mobility challenges. By following these tips, your garage conversion in Anaheim will not only provide a cozy, welcoming in-law suite but also add value and versatility to your home.
Before

After

Advantages of a Garage Conversion
A garage conversion offers a fantastic opportunity to maximize the use of existing space in your home, transforming an underutilized area into a functional and valuable extension. One of the primary advantages of converting a garage is the significant boost it can give to your property’s value without the need for costly and disruptive expansions. Whether you choose to turn it into a cozy guest bedroom, a home office, a gym, or even a stylish family room, a garage conversion allows you to customize your living space according to your evolving needs. Additionally, because the structure already has a foundation and walls, the process is generally quicker and more affordable than building an entirely new addition. This environmentally friendly option also minimizes the need for extra building materials and reduces waste. Beyond financial and environmental benefits, a garage conversion can dramatically improve your lifestyle by providing more room to relax, work, or entertain, making it an attractive and practical choice for homeowners looking to enhance their living environment.
why choose us ?
Constructing Your Future, Our Commitment
L Square Construction is committed to build unique pieces of architecture for families in Anaheim, California.
With these architectures pieces, such as Garage Conversions, ADUs, Granny Flats, In-law Suites, etc you’ll have more property value, space for your family members and rental income
Experience & Expertise
More than 20 years of experience
Commitment to Quality
Quality over quantity
Top-notch contractor for peace-of-mind

Tips for an optimal garage conversion for renting
When planning a garage conversion in Anaheim with the goal of renting it out, there are several important tips to keep in mind to ensure your space is both appealing and functional for potential tenants. First, prioritize maximizing natural light. Bright, well-lit spaces feel larger and more inviting, so consider adding windows or skylights if possible. Next, focus on insulation and ventilation—garages weren’t originally designed for living, so proper temperature control is key to tenant comfort throughout the year. Don’t overlook the importance of plumbing and electrical upgrades if you’re creating a self-contained unit with a bathroom or kitchenette; these amenities can significantly increase your rental value. Additionally, choose durable and easy-to-maintain materials for flooring and walls to reduce long-term upkeep. Finally, be sure to comply with all local building codes and zoning laws in Anaheim to avoid any legal issues down the road. Following these tips will help you create an attractive, comfortable, and compliant rental space that tenants will love.
Tips for an optimal garage conversion for an office
testimonial
what they say about our works ?
“They did an absolute great job. My garage was a mess and was an unused space. I felt I was losing a valuable opportunity. They turn my old garage into a luxurious place from my property”











you can dream, we can build
Project Has Done
loyal client
employee
Where Precision Meets Passion in Building


faq
Garage Conversion FAQs in California, CA
A garage conversion transforms an underutilized garage into a functional living space, such as an ADU (Accessory Dwelling Unit), home office, guest suite, or rental unit. In California, where housing demand is high, converting your garage can increase property value, provide extra income, or accommodate family members.
Yes. California requires permits for garage conversions to ensure compliance with zoning laws, building codes, and safety standards. The process includes submitting plans, paying fees, and passing inspections. Skipping permits can lead to fines or issues when selling your home.
Costs vary based on size, materials, and upgrades, but a basic conversion ranges from $20,000–$60,000. Factors like plumbing (for bathrooms/kitchens), electrical upgrades, insulation, and finishes impact the total price.
Yes! California allows garage conversions as ADUs if they meet state and local requirements (e.g., minimum ceiling height, separate entrance, kitchen/bathroom). ADUs must also comply with parking and utility hookup rules.
A simple conversion takes 8–12 weeks, while complex projects (with plumbing/electrical work) may take 3–6 months. Delays can occur due to permit approvals, inspections, or material shortages.
Possibly. Adding livable square footage may trigger a property tax reassessment, but California’s Proposition 13 limits increases. Consult a tax professional for specifics.
Insulation & HVAC (for year-round comfort)
Natural light (windows/skylights)
Soundproofing (if near main house/neighbors)
Accessibility (wide doorways, no-step entries)
Some tasks (demolition, painting) can be DIY, but electrical, plumbing, and structural work require licensed contractors in Anaheim. Improper work can fail inspections or create safety hazards.
Use multifunctional furniture (e.g., Murphy beds, foldable desks).
Opt for vertical storage (shelves, lofted cabinets).
Choose an open layout with minimal walls.
Look for licensed, insured contractors with ADU/garage conversion experience. Check reviews on Yelp, the CSLB website, or ask for local referrals.
blog & article
read our latest blog & article
Reimagine Your Garage. Reclaim Your Investment.
Our Services
Your garage is more than a storage room. It’s valuable square footage that could be working for you
At L Square Construction, we specialize in converting garages into high-end ADUs designed for comfort, functionality, and real return on investment.
Custom ADU Homes
ADUs are the future of home living, offering rental income, extra space or a private office
ADU Design Build
Expand your living space, boost property value, and earn extra income with an ADU from L Square Construction
Garage Conversion ADU
L Square Construction specializes in high-quality garage conversion ADUs that add living space, rental potential, or a private office
Backyard Cottage Construction
Looking for a cozy cabin or cottage in Los Angeles?
Granny Flat
We build high-quality granny flats adapted to their needs.
In-law Suite
We design stylish, private spaces to keep loved ones close.