L Square Construction - Licensed ADU Construction Company in Orange County ADU projectLicense Verified

L Square Construction - Licensed ADU Construction Company in Orange County

Serving Lake Forest, Anaheim, Santa Ana, Newport Beach & more · Based in Lake Forest, CA

Pricing on request — unlock L Square Construction - Licensed ADU Construction Company in Orange County's ADU pricing for your project

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L Square Construction - Licensed ADU Construction Company in Orange County ADU project 1
L Square Construction - Licensed ADU Construction Company in Orange County ADU project 2

About L Square Construction - Licensed ADU Construction Company in Orange County

L Square Construction - Licensed ADU Construction Company in Orange County is a CSLB-verified contractor listed in Orange County with classification B.

3+ years building ADUs · CSLB 1095476 · B - General Building Contractor

L Square Construction - Licensed ADU Construction Company in Orange County ADU pricing

Pricing varies by unit type, size, finishes, and site conditions. Unlock L Square Construction - Licensed ADU Construction Company in Orange County's project pricing for your lot — free, no obligation.

Unit typeTypical sizePricing
Studio / JADU≤ 500 sq ftPricing locked — unlock to view
1-bedroom detached ADU600–750 sq ftPricing locked — unlock to view
2-bedroom detached ADU750–1,000 sq ftPricing locked — unlock to view
Garage conversion400–600 sq ftPricing locked — unlock to view
Attached ADU400–800 sq ftPricing locked — unlock to view

Pricing is unlocked per project

Share a few details and we'll send L Square Construction - Licensed ADU Construction Company in Orange County's pricing for your build.

Services L Square Construction - Licensed ADU Construction Company in Orange County offers

  • Detached ADUs
  • Attached ADUs
  • Garage Conversions
  • Junior ADUs (JADU)
  • Permitting

What L Square Construction - Licensed ADU Construction Company in Orange County handles

Design & permitting

In-house design and full permit handling.

  • Architectural design & 3D renderings
  • Structural & Title 24 energy plans
  • City plan-check submittal & corrections

Construction

Turnkey ground-up and conversion builds.

  • Foundation & framing
  • Detached, attached & garage-conversion ADUs
  • Electrical, plumbing & HVAC

Financing

Guidance and lender introductions.

  • Renovation / construction-loan guidance
  • HELOC & cash-out refinance referrals
  • ADU-specific (after-build-value) lenders

Project types

ADU formats this builder takes on.

  • Detached ADU
  • Attached ADU
  • Garage / ADU conversion

Warranty & support

What's covered after move-in.

  • Workmanship warranty
  • Manufacturer materials warranties
  • Dedicated project manager

Reviews of L Square Construction - Licensed ADU Construction Company in Orange County

5.012 reviews
Verified

L-Square Construction was quick and efficient with their response time, which made the entire process smooth from the start. Their team was professional, easy to work with. Highly recommend L-Square Construction to get the information needed for your ADU projects, straight forward 👍

Jason Spates0 found this helpful
Verified

We’re absolutely thrilled with our new kitchen, thanks to Kiko’s incredible design and Brian’s outstanding contracting work! Kiko transformed our space into a beautiful, modern, and open-concept kitchen that still feels warm and inviting. The dark cabinetry, spacious counters, and large windows make it both stylish and functional. Brian and his team brought the design to life perfectly — their attention to detail, professionalism, and commitment to finishing on time made the entire process smooth and stress-free. The final result exceeded our expectations! We highly recommend L Square Construction for anyone looking for top-quality design and craftsmanship.

Md. Nazmus Sadat0 found this helpful
Verified

I had a great experience working with Brian and Kiko. They helped me plan and build an ADU in my backyard from start to finish. The team was professional, responsive, and made the whole process smooth and stress-free. Highly recommend if you’re looking to add value to your property or need more living space.

Leo Ren0 found this helpful
Verified

I had a great experience with L Construction during my recent home remodel. The team was friendly, attentive, and always kept me updated on the progress. They worked efficiently while still paying attention to the little details, and the end result is exactly what I hoped for. It was a relief to have a project go smoothly and stay on track. I’m really happy with how everything turned out and would gladly work with them again!

Christy Leung0 found this helpful
Verified

Brian and his team did an exceptional job designing and building my ADU! From start to finish they were basically there every step of the way - from inspection to questions being answered they were prompt and knowledgeable about the construction process and what type of finished fixtures they recommended. I cannot express how satisfied I am with my ADU, which will be used for my AirBnB business! My tenants / customers will enjoy what Brian and his team created!

John Liang0 found this helpful

Frequently asked questions about L Square Construction - Licensed ADU Construction Company in Orange County

What does L Square Construction - Licensed ADU Construction Company in Orange County offer?

L Square Construction - Licensed ADU Construction Company in Orange County is a full-service ADU builder serving Lake Forest, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). L Square Construction - Licensed ADU Construction Company in Orange County holds a 5.0-star rating across 12 verified homeowner reviews.

Is L Square Construction - Licensed ADU Construction Company in Orange County licensed and insured?

Yes. L Square Construction - Licensed ADU Construction Company in Orange County holds an active CSLB license (1095476), classified B - General Building Contractor, and is bonded and insured.

How much does L Square Construction - Licensed ADU Construction Company in Orange County charge to build an ADU?

L Square Construction - Licensed ADU Construction Company in Orange County prices every ADU per project — your cost depends on size, finishes, and site conditions. Garage conversions are the most affordable path; detached units cost more. Pricing is unlocked per project: request a quote to get L Square Construction - Licensed ADU Construction Company in Orange County's exact, no-obligation estimate for your lot.

What areas does L Square Construction - Licensed ADU Construction Company in Orange County serve?

L Square Construction - Licensed ADU Construction Company in Orange County builds ADUs in Lake Forest, Anaheim, Santa Ana, Newport Beach, Orange County.

How long does L Square Construction - Licensed ADU Construction Company in Orange County take to build an ADU?

Most ADU projects run 6–12 months end to end — roughly 1–2 months for design and permitting (California caps plan check at 60 days for compliant units) and 4–8 months of construction. L Square Construction - Licensed ADU Construction Company in Orange County confirms a timeline for your specific project during the feasibility consultation.

How do I get a quote from L Square Construction - Licensed ADU Construction Company in Orange County?

Tap any "Get a Quote" button on this page to share a few details about your property and project. We'll confirm your service area, match you directly with L Square Construction - Licensed ADU Construction Company in Orange County, and set up your free feasibility consultation — no obligation.

Where L Square Construction - Licensed ADU Construction Company in Orange County works

Lake Forest, CAService-area map
Street View
  • City Building & Safety
  • Planning Department
  • Permit Center

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