L Square Construction | Licensed ADU Construction Company in Orange County

Licensed In-Law Suite Builder in Huntington Beach

🚀 Attention Huntington Beach Homeowners!

Your Dream In-Law Suite is Just 90 Days Away

custom adu homes in garden grove

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Custom designs, fast approvals, and ROI you’ll love—all in sunny HB

Your Huntington Beach Dream Suite: Privacy for Family, Profit for You

Tired of compromising when family visits? Imagine a private, luxurious retreat in your backyard. Here, your loved ones can stay comfortably without taking up your space or peace of mind

At L Square Construction, we specialize in building in-law suites in Hunting Beach, California 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.

Home for Mother in law Huntington Beach

Why Huntington Beach Chooses Us for In-Law Suites:


✅ Fast-Track Permits: We know HB’s regulations inside out – no delays, no headaches.
✅ Custom Designs: From beach-chic studios to ADA-compliant suites, we match your home’s style.
✅ ROI Boost: Add 150K+ in property value (or earn 3K+/month in rental income!).
✅ Stress-Free Build: Done in 90 days – guaranteed.

This isn’t just a ‘granny flat’ – it’s a game-changer for your family and finances.

Sunset at Huntington Beach: Golden sand, perfect surfing waves, and the iconic HB pier. Experience Southern California's laid-back coastal lifestyle.
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ADU Construction Company

Picture This:

  • Your aging parents live independently but nearby, with privacy and dignity.

  • Your Airbnb guests pay your mortgage in a premium beach-close suite.

  • Your home’s value skyrockets while neighbors stress over cramped guest rooms.

The only thing you’ll regret? Not building it sooner.

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.

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

Consultation
Understanding Your Vision

We create a custom ADU design that fits your needs and budget, ensuring a smooth process as a trusted Los Angeles ADU contractor.

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02

Design
Custom ADU Plan

Our team designs functional and stylish ADUs, from garage conversions to custom additions, ensuring quality and innovation in Los Angeles.

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03

Permits – We Handle the Paperwork

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04

Construction – Building Your ADU

Our expert ADU contractors in Orange County, CA, build your ADU with precision, staying on schedule and within budget.

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05

Move In Your ADU
is Ready

Your new accessory dwelling unit is fully move-in ready, adding comfort, value, and extra living space to your property.

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Want the Details?

Learn more about our seamless design and construction process.

Multi Family Homes in Huntington Beach

Limited 2025 Slots Available!

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Cutting-Edge Energy Solutions

Click “Free Design Consult” (30 seconds)

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Designed for Efficiency

Over 2x more energy-efficient than traditional homes.

Turn Your Backyard into a Profitable ADU!

Expert ADU design and construction services customized to fit your space and lifestyle.

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Garage Conversion

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Home Conversion

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Garage Addition

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New Detached ADU

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Home Addition

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Junior ADU (JADU)

Meet our CEO

Hello, I am Kiko - CEO of L Square...

Kiko brings a unique perspective as a Chinese-American entrepreneur, which enriches the company’s cultural and professional diversity. This background allows her to understand and address the needs of a wide range of clients, offering customized solutions that reflect a deep understanding of different cultural and social perspectives.

The Work We Have Done

Garage to ADU conversions specialists

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.

Home renovations contractors

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.

Luxury ADU and guest house builders

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

What is the housing in Huntington Beach, California?

Huntington Beach offers a mix of coastal luxury homes, suburban single-family residences, and modern condos, with a median home price exceeding $1.2 million. The market caters to upscale living, featuring Spanish-inspired and contemporary designs, often with proximity to the beach driving premium values.

What's it like to live in Huntington Beach with a family?

Families thrive in Huntington Beach thanks to top-rated schools like Huntington Beach High, safe neighborhoods, and abundant outdoor activities, from surfing to community events like the US Open of Surfing. However, the high cost of living can be a challenge for some households.

Is it expensive to live in Huntington Beach, CA?

Yes, Huntington Beach is one of California’s most expensive coastal cities, with a median home price around 1.2million and 3,000 per month. The cost of living is roughly 40% higher than the national average, driven by high demand and limited inventory.

Is it hard to find a place to rent on the beach in California?

Oceanfront rentals in Huntington Beach and other California coastal cities are extremely scarce and expensive, with fierce competition and waitlists common. A one-bedroom near the sand often costs over $4,000 per month, making beachside living a luxury.

Why is it sometimes difficult to create housing in California?

Strict zoning laws, environmental regulations like CEQA, community opposition (NIMBYism), and high construction costs frequently delay or block new housing projects, exacerbating the state’s affordability crisis.

Can a lawsuit compel upscale cities to build more housing?

Yes, California’s Housing Accountability Act and laws like SB 9 penalize cities that resist state-mandated housing plans. For example, Huntington Beach faced legal action in 2023 for refusing to approve affordable housing developments.

What solutions are making Los Angeles housing more affordable?

Los Angeles is tackling its affordability crisis through innovative measures like streamlined approvals for backyard ADUs, transit-oriented density near metro lines, and voter-approved funding for affordable housing. The city has fast-tracked over 1,200 affordable units in 2024 alone, while new state laws now require cities to permit multifamily housing in formerly single-family zones. Community land trusts and “missing middle” housing projects are creating below-market options, with some new micro-unit developments offering studios under $1,500/month—30% below traditional rents. Though challenges remain, these reforms are slowly bending the cost curve while preserving LA’s neighborhood character.

Why is Orange County, California real estate so expensive?

Orange County’s high prices result from limited coastal land, affluent buyers with high wages, luxury demand in cities like Newport Beach, and Prop 13’s tax incentives reducing turnover of existing homes.

Why are there so few two-storied houses in California?

Single-story homes dominate due to earthquake safety concerns, mid-century ranch-style trends, and zoning laws that restrict building heights in some areas, though newer suburbs are increasingly incorporating two-story designs.

🚀 Your Huntington Beach ADU Starts Here!

Limited 2024 Slots – Claim Yours Today!

1️⃣ Get Your Free Design Consult (30-second click)
2️⃣ Receive 3D Plans + Exact Quote (Within 24 Hours)
3️⃣ Break Ground in 2 Weeks – We Handle Permits & Construction

👉 Start My ADU Now 👈

🔥 First 5 Clients Get:

  • $5,000 OFF Construction

  • Free HOA Approval ($2,500 Value)

  • Smart Home Kit (Nest Thermostat + Keyless Entry)

Space for Your Family. Profit for Your Future. Let’s Build Both.

☎️ Call Now: (949) 374-79-80 
or Schedule Online Instantly


No more waiting – Your dream ADU is 3 steps away!

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