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

Who We Are

Name: LEFF Design Build
Price range: $

In 1978 our Founder, Dave Leff, discovered a better way to build that aligns every voice surrounding a project—client, architect, engineer, interior designer, and builder—organizing a typically complicated process into a singular, holistic approach. This Design-Build philosophy—the first in Sonoma County—led to hundreds of better lives and happy homeowners. Today our history of crafting enduring homes carries on through the next generation of leaders at LEFF Design Build.

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LEFF Through the Years

2023

LEFF Design Build becomes 100% Employee Owned and Operated

2022

Dave Leff retires

2020

LEFF becomes a 100% Employee-Owned company

2018

LEFF Design Build, Inc. starts the process of evolving into an Employee-Owned company

1990

LEFF Construction restructures from a traditional contractor into a design + build operation

1987

LEFF Construction incorporated in Sonoma County

1978

LEFF Construction was founded as a sole proprietorship

Employee Owned

Employees build financial wealth through our Employee Stock Ownership Plan for their retirement and families regardless of their position. We hire people who want to build value—for themselves, the company, and our Sonoma County community.

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Our Team

We are architects, project managers, builders, and so much more. Learn more about the brilliant experts that make us the best in home building and remodeling throughout Sonoma County.