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arterra design & build

Arterra Design & Build is a founder-led design-build firm based in Los Angeles. Since 2020, we’ve completed 300+ residential projects across the Westside, the Valley, and greater LA – earning a reputation built on craftsmanship, accountability, and lasting trust.

We specialize in kitchens, bathrooms, ADUs, full-home remodels, and new construction. As a family-centered company that proudly employs U.S. veterans, we intentionally take on a limited number of projects each year, giving every home the attention, care, and oversight it deserves.

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300+ Projects Completed
150+ Five-Star Reviews
20+ Years Combined Experience
2020 Founded in Los Angeles

Our Story

Before launching Arterra, our team spent years working across every side of residential construction – from design and sales to project management and hands-on building. Along the way, we saw firsthand what made projects succeed, and what caused them to fall apart. We recognized a gap between what homeowners were promised and what they actually experienced.

We built Arterra to close that gap.

From day one, our philosophy has been simple: show up, communicate clearly, and build it right.

Plan Twice. Build Once.

It’s more than a tagline – it’s the standard we hold ourselves to every day, and the foundation of the trust we’ve built with hundreds of Los Angeles homeowners.

The Arterra Difference

Why Los Angeles Chooses Arterra

Daily On-Site Project Management

We stay present throughout the build with consistent site oversight, clear communication, and real-time updates.

Locally Owned. Personally Invested.

We take on a limited number of projects so every home receives the attention, care, and accountability it deserves.

One Team From Design To Build

Design, permitting, planning, and construction are handled under one roof - reducing handoffs, delays, and confusion.

Licensed. Permitted. Accountable.

CSLB #1114133. Every project is properly permitted, professionally managed, and built with full transparency.

Meet Our Team

Behind every Arterra project is a team that genuinely loves what they do. We’ve spent years in this industry because we believe that a well-built home changes how a family lives – and that belief drives every decision we make, from the first design conversation to the final walkthrough. We’re proud of the work, but we’re even prouder of the relationships we build along the way.

Great remodeling isn’t about choosing expensive materials. It’s about making hundreds of smart decisions that come together into one beautiful home.

Tom Liron Cohen

Tom Liron Cohen

Founder & CEO
Carlos Altamirano

Carlos Altamirano

Director of Operations
John Charlston

John Charlston

Senior Project Manager

Meet Our Clients

The roof needed more than just new panels. The rear slope had sagged from years of water pooling. We decided on metal roof replacement and had them reframe the rear section. After they removed the shingles, they rebuilt the slope to match the original pitch and added sheathing and waterproofing. Once the framing was fixed, they installed standing seam metal panels across the roof. Ridge caps, valleys, and drip edges were all upgraded. They also updated all flashing, including around the attic vents. It now looks sharp and feels much sturdier than before. It was done right.

Maris Keaton

August 24, 2025

I had a fantastic experience with Arterra. I worked with Tom who helped inspect a home we are considering purchasing. He was easy to schedule with, super responsive and knowledgeable, and went above and beyond to walk us through concerns we had. I highly recommend this team’s work!

Lost Glovers

Apr 14, 2026

We hired Arterra for a bathroom remodel last month. They finished in 15 days, 6 days a week. Every guy was very respectful and hard working. They accepted my feedback and handled my requests very well. They sent a crew the very next day to fix anything I flagged. The text thread was very active and made sure everything stayed on schedule.

Misty

Mar 29, 2026

We hired Arterra for a bathroom remodel last month. They finished in 15 days, 6 days a week. Every guy was very respectful and hard working. They accepted my feedback and handled my requests very well. The text thread was very active and made sure everything stayed on schedule.

Misty R.

Mar, 2026

I had a fantastic experience with Arterra. I worked with Tom who helped inspect a home we are considering purchasing. He was easy to schedule with, super responsive and knowledgeable, and went above and beyond to walk us through concerns we had. I highly recommend this team’s work!

Joy P.

Mar, 2026

We hired these gentlemen to refresh our bathroom with new tiling paint flooring and tub installation and they were just lovely!! Excellent price beautiful work and very communicative and kind!

Katie T.

May, 2026

I wanted a simple accessory unit to give my mom her own space while staying nearby. I had a few builders come out, but Arterra were the only ones who took the time to walk the lot properly and explain what would work. We ended up with a one-bed, one-bath ADU that sits about 25 feet from the main home. The structure was up in less than two weeks after permits, and the finishes followed quickly after. The space is quiet, easy to maintain, and doesn’t feel cramped. The best part is, she loves it. I’d recommend them to anyone.

Claire Foster

Oct 9, 2025

They have helped us fully remodel our kitchen and dining area, creating more space with no wall that has made it more functional and inviting. Mark guided us through every detail, from cabinets to countertops, and handled all the structural works as per the permit demands. They kept us involved every step of the way and ensured we were satisfied with every choice. We are so happy with our new space.

Wesley White

September 16, 2025

We didn’t touch the footprint, but the team still made our bathroom feel twice as big. Their design was simple: swap the tub for a full-width shower, move the toilet by two feet, and go with open shelving instead of bulky cabinets. It worked. The lighting is better, and nothing feels cramped anymore. The remodeling crew showed up early and stayed consistent. We loved that they didn’t try to sell us on things we didn’t need. Everything works better now. It was the right kind of remodel; smart and calming.

Spencer Locke

September 1, 2025

Highly recommended! From the very first meeting, they were transparent, responsive, and truly committed to delivering high-quality work. Every step of the project was handled with care, and the team was always on time, respectful, and organized. The results are exactly what I hoped for – even better!

Chen Malka

Dec 16, 2025
We have over 150+ 5-star reviews
Luxury kitchen remodel Los Angeles
Start Your Project

Plan Twice.
Build Once.

From the first conversation to the final walkthrough, we'll guide you through every step with clarity, transparency, and thoughtful planning - creating a process that's just as enjoyable as the finished space.

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Prefer to talk? Call us at (818) 371-1202
300+
Projects Completed
150+
Five-Star Reviews
20+
Years Experience
2020
Founded
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