Service

ADU Builder | Los Angeles & Orange County

ESK Construction designs and builds accessory dwelling units (ADUs) across Los Angeles and Orange County — from permitting through final walkthrough, for rental income, multigenerational living, or extra space.

What We Deliver:

Standalone unit design suited to your lot & lifestyle
Site planning, zoning & foundation work
Framing, structural work & exterior envelope
Flooring, cabinetry & interior finishes
Kitchenette & full bathroom build-out
Independent electrical, plumbing & HVAC systems
Permitting, inspections & final walkthrough
California ADU law & streamlined permitting expertise
Rental-ready unit design & separate utility metering

Get Started

Modern accessory dwelling unit (ADU) with wood siding built by ESK Construction Inc. in a Los Angeles County backyard

Process

Discovery & Consultation → design → permitting → build-out → move-in

Experience

14+ Years in Business

Next Step

Start with a Discovery Call

Our ADU construction service is built for homeowners adding a standalone unit for rental income, aging parents, adult children, or guests. From site planning and zoning compliance to framing, systems, and finishes, we manage every detail — including permitting under California's streamlined ADU approval process — to deliver a unit that's ready to occupy or rent. With 14+ years in business, ESK Construction has completed ADU construction projects across Los Angeles and Orange County for homeowners building their first accessory unit.

Ready to Get Started?

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From First Call to Final Walkthrough

Our Step-by-Step Approach

Discovery & Consultation

Every great project begins with understanding your vision.

Book Discovery Call

Initial Consultation

Site Analysis

Concept Briefing

Design & Planning

We translate ideas into actionable designs that balance creativity with practicality.

Concept design

Technical Drawings

Permits & Approvals

Build & Deliver

From groundbreaking to final handover, our team manages every stage with precision and transparency.

Construction management

Quality checks

Final inspection

Testimonials

What our clients say

Real feedback from teams we've built for.

"ESK Construction built our office from the ground up, and the result is a space our whole team is proud to work in. They handled everything from layout to finishes and kept the project moving on schedule at every stage. Communication was clear from start to finish, and there were no surprises."

— Rachel S., Operations Director

Commercial operations director client of ESK Construction Inc., a general contractor for tenant improvement and office build-outs

"Building a custom home felt overwhelming until we brought ESK on board. They guided us through every decision, from the initial layout to the final finishes, and never once made us feel rushed or out of the loop. The craftsmanship is exactly what we hoped for, and the whole process felt genuinely collaborative."

— David and Karen E., Homeowners

Homeowner couple who partnered with ESK Construction Inc. for their residential construction project in Southern California

"Building out a medical facility means dealing with strict codes and zero room for error, and the team at ESK Construction handled it flawlessly. They understood the compliance requirements from day one and kept the project moving without compromising quality. Our patients and staff have a space that feels professional and welcoming."

— Dr. Reyes, Practice Owner

Medical practice owner client of ESK Construction Inc., which builds healthcare facilities across Los Angeles and Orange County

"We'd never built an ADU before and had no idea what to expect, but ESK made it simple. They handled permitting, design, and construction seamlessly, and the finished unit is better than we imagined - it's already paying for itself as a rental. They were honest with us at every step."

— Priya N, Homeowner

Satisfied homeowner client of ESK Construction Inc., a California general contractor serving Los Angeles and Orange County

Trusted by developers, homeowners, and businesses alike

Frequently Asked Questions

Everything You Need to Know—Before You Build

We help homeowners, developers, and businesses bring their spaces to life with precision and purpose. Here’s what clients often ask before starting their project with ESK Construction.

What types of construction projects does ESK Construction handle?

We work across residential and commercial construction, including custom home builds, ADUs, office build-outs, commercial renovations, and specialized spaces like medical facilities. Whatever the scope, we manage the project from initial planning through final walkthrough.

What's included in an ADU build?

Our ADU service covers design, permitting, site work, and full construction, from foundation to finishes. We help you navigate local zoning requirements and design a unit that fits your property and goals, whether it's for rental income or extended family.

Do you build custom homes from the ground up?

Yes. We work with you from initial design through final finishes, managing layout, materials, structural work, and every detail in between to build a home tailored to how you actually want to live.

Do you have experience with medical or healthcare facility construction?

Yes. Medical builds come with strict code and compliance requirements, and our team is experienced in navigating those standards without compromising on quality or timeline.

How long does a typical project take?

Timelines vary based on project size, scope, and permitting requirements. During your consultation, we'll walk you through a realistic schedule specific to your project so you know what to expect at every stage.

Do you handle permits and inspections?

Yes. We manage the full permitting process on your behalf, including submissions, approvals, and coordinating required inspections, so you don't have to navigate city and county requirements on your own.

Can I stay in my home or keep my business open during construction?

In many cases, yes. We plan our work to minimize disruption, and for commercial projects especially, we coordinate scheduling to keep your operations running as smoothly as possible during the build.

How does pricing work?

Every project is different, so we provide a detailed estimate based on your specific scope, materials, and site conditions after an initial consultation. We believe in transparent pricing with no hidden surprises along the way.

Do you offer any warranty on completed work?

Yes, we stand behind our craftsmanship. We're happy to walk you through the specifics of our workmanship coverage during your consultation.

Will I have a single point of contact throughout my project?

Yes. You'll work with a dedicated project team who keeps you updated at every phase, so you're never left wondering what's happening or who to reach out to.

What happens if something needs adjusting mid-project?

Construction can involve changes along the way, and we handle them with clear communication. Any adjustments to scope, materials, or timeline are discussed and approved with you before we proceed.

How do I get started?

Reach out to schedule a consultation or site visit. We'll discuss your project, answer your questions, and outline next steps so you have a clear picture of the process from day one.