TOP-RATED ADU CONTRACTOR IN ORANGE COUNTY
Orange County ADU Builders
Building affordable and custom ADUs, with a focus on quality, energy efficiency, and design to fit your needs
Affordable Custom ADU in Your Backyard for Extra Space
Get more living space with a backyard ADU for aging parents 👵, family 👨👩👧 and rental income 💰. With our turnkey services, we make ADU development stress-free—from plans and permits to final move-in!

Garage Conversion

Home Conversion

Garage Addition

New Detached ADU

Home Addition

Junior ADU (JADU)

Custom ADU Homes
ADUs are the future of home living, offering rental income, extra space, or a private office. L Square Construction designs and builds custom ADUs to maximize your property’s value and functionality.

In-law Suite
Looking for a house with an in-law suite in Los Angeles? LS Construction designs stylish, private spaces to keep loved ones close.

Backyard Cottage Construction
Looking for a cozy cabin or cottage in Los Angeles? LS Construction crafts beautiful, high-quality cottages tailored to your unique needs with expert craftsmanship.

ADU Design-Build
Expand your living space, boost property value, and earn extra income with an ADU from L Square Construction. We handle everything from design to construction, ensuring a seamless, high-quality build.

Garage Conversion ADU
ADUs are the future of home living, offering rental income, extra space, or a private office. L Square Construction designs and builds custom ADUs to maximize your property’s value and functionality.

Tiny Homes
Tiny homes provide a comfortable, efficient, and affordable way to live. L Square Construction designs and builds custom tiny homes that maximize space, style, and sustainability.

Granny Flat
At LS Construction, we build high-quality ADU granny flats for extra living space, rental income, or family housing. From design to permits, we handle it all — affordable, functional, and tailored to your needs.
Here goes the Handbook
Meet our Team of Professionals Builders
Align your team members beautifully using full image details in hover effect style layout & decorate team showcase for Elementor website.

Kiko Zhou
Interior Designer
- Phone:+1 (949) 374-7980
- Email:kiko@lscontractor.com

Brian Leung
CSLB Certified General Contractor
- Phone:+1 (949) 923-5989
- Email:info@lscontractor.com

Ricardo Barrios
Marketing Manager

Ricardo Barrios
Marketing Manager
Real ADUs, Real Stories – Follow Us on Instagram
Explore our latest ADU builds, client testimonials, and expert tips
Get Your Free Consultation Today!
At A+ Construction & Remodeling, we prioritize quality craftsmanship and customer satisfaction. Whether you need a new granny flat or a complete remodel, our dedicated team is here for you. With years of experience in the Greater Sacramento area, we’re ready to bring your vision to life. Contact us for personalized solutions today!
we ready to make your dream into reality
L Square Construction
Get to Know Us
L Square Construction is a licensed ADU construction company specializing in ADUs, home additions, and garage conversions. We handle architecture, structural engineering, and interior design in-house, ensuring top quality. Our expert team, with graduates from USC, UCLA, and UCI, brings fresh ideas and attention to detail to every project. As a trusted ADU contractor in Los Angeles, we focus on delivering custom ADU designs and innovative building solutions that meet your needs. Our goal is to create beautiful accessory dwelling unit designs while prioritizing service over profit.
Turn Your Yard into a Functional Space with a Custom ADU in Los Angeles.
Make Your Yard Work with ADU.
As seen in:




What We Offer
Discover our range of expert contractor services tailored to your needs.

Home Additions
Expand your living space with our expertly crafted home additions that blend seamlessly with your existing structure.

Kitchen Remodeling
Transform your kitchen into a functional and stylish space that meets your cooking and entertainment needs.

Bathroom Renovations
Upgrade your bathroom with modern fixtures and layouts, enhancing both comfort and value.

Outdoor Spaces
Create beautiful outdoor areas for relaxation and entertainment, crafted to fit your lifestyle.
If you are planning to build an ADU
For extra income, an in-law or for your parents...
You are in the right place
Contact us, a member of our team will reach out to you ASAP and send a quote!

One bedroom
540 sq. ft.

One bedroom
540 sq. ft.

One bedroom
540 sq. ft.
City of Orange
City of Torrance
What's an ADU
An ADU is a secondary and architecturally diminutive unit on a property that already has a primary residential unit. A thoughtfully designed accessory dwelling unit provides extra living space, rental income, or a private retreat. As expert ADU builders in Los Angeles, we craft functional, high-value solutions tailored to your needs.

Custom ADU Homes

Garage Conversion ADU

ADU Design-Build
Our Process
Simple & Stress-Free
We believe that construction should be easy. That’s why we guide you through every step, from concept to completion.
01
Custom ADU Design
We create a custom ADU design that fits your needs and budget, ensuring a smooth process as a trusted Los Angeles ADU contractor.

02
Design a Custom ADU Plan
Our team designs functional and stylish ADUs, from garage conversions to custom additions, ensuring quality and innovation in Los Angeles.

This New Space Might Steal the Spotlight from Your Main Home.
Advantages of a Custom ADU
Extra Income
A thoughtfully designed accessory dwelling unit (ADU) provides extra living space, rental income, or a private retreat. As expert ADU builders in Los Angeles, we craft functional, high-value solutions tailored to your needs.

Custom ADU Homes

Garage Conversion ADU

ADU Design-Build
Sustainability
Transform your backyard into an energy-efficient ADU in Los Angeles with smart designs and solar solutions. Our custom ADUs reduce grid dependence while adding functional space and value to your property. Eco-friendly, efficient, and built for the future.

Cutting-Edge Energy Solutions
Innovative designs that reduce your carbon footprint.

Designed for Efficiency
Over 2x more energy-efficient than traditional homes.
AS FEATURED ON
ADU Construction Company
From design to permits to construction, we handle everything.
Home projects can feel overwhelming, but our expert ADU builders handle everything. From custom ADU designs and securing permits to construction and final touches, we ensure a seamless, stress-free ADU design-build experience in Los Angeles and Orange County.
Custom ADU builders in Orange County
Your home should reflect your lifestyle and we make that happen.
Every ADU, home addition, or remodel we build is designed to fit your space, style, and needs. Whether it’s a modern rental unit, a cozy in-law suite, or a complete home upgrade, our expert ADU contractors in Los Angeles ensure precision and quality in every project.
Licensed & Insured Contractors Committed to Excellence
Built by experts, designed for longevity.
Our team of expert ADU builders includes professionals from top universities like USC, UCLA, and UCI, bringing innovation and expertise to every project. We use premium materials and advanced construction techniques to ensure long-lasting quality in every ADU, home addition, or remodel we build.
Frequently Asked Questions
An accessory dwelling unit (ADU) is a small, independent living space on your property. It’s ideal for rental income, guest housing, or an in-law suite for family members.
Costs vary based on size and design. Our ADU cost calculator provides an estimate, and as a trusted ADU construction company, we offer accurate quotes and financing options.
Yes! A garage conversion ADU is a popular way to add extra living space. As experienced garage conversion builders, we ensure a seamless process from permits to completion.
Use our home addition cost estimator or construction price calculator for an estimate. Our ADU design-build team in Orange County provides customized solutions to fit your budget.
Absolutely! We specialize in ADU projects in Los Angeles and Orange County, creating efficient and stylish living spaces.
A professional ADU contractor in Los Angeles, like LScontractor, ensures compliance with city regulations, high-quality construction, and efficient project management. We handle everything from custom ADU designs in Orange County to final inspections.
Yes! We design and build cabins in Los Angeles and Orange County, as well as backyard cottages for homeowners seeking extra space or rental opportunities.
Yes! Smart home automation reduces energy waste by optimizing lighting, climate control, and appliance usage. Automated schedules and thermostat adjustments can help lower energy bills.
Our systems use encrypted connections, multi-factor authentication, and real-time alerts to protect your home and data. Features like smart locks, motion sensors, and remote monitoring provide additional security.
Yes! Our smart home solutions are designed to be scalable. You can start with basic automation and add features like security upgrades, smart entertainment, or climate control whenever you’re ready.
Need more space? Let’s build something you’ll love!
Your home should grow with you—let’s make it happen!
Big dreams for your home? We’re here to bring them to life.
From ideas to reality, we’re with you every step of the way.