Who We Are

Luxury Home Transformation, Built on Expertise & Integrity

At LEFF Design Build, we don’t just build homes—we craft architecturally stunning spaces that redefine luxury, function, and longevity. Since 1978, we have been Sonoma and Napa County’s premier design-build firm, creating bespoke, high-performance homes that blend beauty, craftsmanship, and sustainability.

Our fully integrated design-build approach ensures that every project is seamless from concept to completion—with one team, one vision, and one point of accountability.

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Dave Leff, founder of LEFF Design Build with LEFF construction sign.

LEFF Through the Years

Employee-Owned. Client-Focused. Built for Excellence.

We believe that exceptional homes start with an exceptional team—and that’s why we are 100% employee-owned. Every designer, architect, and builder on our team is personally invested in the success of your project, ensuring that quality, craftsmanship, and accountability are at the heart of everything we do.

🔹 A Team That Treats Every Project Like Their Own – As owners, we take pride in our work and are committed to delivering on-time, on-budget results that exceed expectations.
🔹 Higher Standards, Better Outcomes – Our employee-owners bring a level of care, precision, and attention to detail that goes beyond the industry norm.
🔹 A Legacy That Lasts – Our ownership mindset means we’re not just building homes—we’re building lasting relationships, a strong reputation, and a company that will be here for generations to come.

Meet the Experts Behind LEFF Design Build

Our employee-owned team is made up of some of the industry’s most talented architects, designers, project managers, and craftsmen—all dedicated to delivering exceptional results.

Candice

President

Morgan

Director of Operations

Josh

Estimator

Jonathan

Architect

Dianne

Interior Designer

Jordan

Project Manager

Eric

Lead Superintendent

Mike

Superintendent

Lubo

Superintendent

Michéle

Lead Journeyman

Mauricio

Lead Journeyman

Roberto

Lead Journeyman

Daniel

Journeyman Carpenter

Roberto Jr.

Journeyman Carpenter

Wyatt

Apprentice

Janell

Office Manager

Goose

Barkitectural Consultant

Work at LEFF

We are always searching for talented professionals to join our team of Design-Build experts. Learn more about what roles are currently open.