Jeffrey J. Kahn


PHONE: (303) 776-9900
FAX: (303) 776-9100


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Jeffrey J. Kahn


With a commitment to provide innovative legal solutions, Jeff Kahn utilizes over 40 years of experience to assist clients in water-related matters. He advises a diverse clientele, including municipal water providers, special districts, water conservancy districts, irrigation companies, landowners, and developers. Leveraging his wealth of experience in navigating complex transactions, Jeff consistently delivers favorable outcomes for his clients.


Water Law

Education & Experience

Jeff earned his degree from the University of Colorado in 1972 and graduated from the University of Colorado School of Law in 1975.

Noteworthy projects in Jeff’s portfolio during his tenure at the firm include drafting and promulgating the non-tributary rules for the State of Colorado, representing the St. Vrain & Left Hand Water Conservancy Districts and other clients in the trial of United States Forest Service claims for reserved instream flows in the South Platte River basin, and successfully defending claims for water export from the South Park aquifer in Colorado on behalf of several local governments. Recently, Jeff has played a pivotal role in complex water right acquisitions and sales, while also providing counsel to conservation organizations on water acquisitions and related matters.

Recognized for his expertise, Jeff is frequently invited to share his insights on water issues as a lecturer at events sponsored by the Colorado Water Congress, the Ditch and Reservoir Company Alliance, and the Colorado Bar Association. Through active participation in these forums, he contributes to the ongoing development of water law and fosters dialogue among industry professionals.

Jeff’s accomplished career at Lyons Gaddis includes notable trial and appellate work, resulting in several reported cases such as Aurora v. State Engineer, Board of County Commissioners v. Park County Sportsmen’s Ranch, LLP, Park County Sportsmen’s Ranch, LLP v. Bargas, South Adams County Water and Sanitation District v. Broe Land Co., and Zigan Sand & Gravel, Inc. v. Cache La Poudre Water Users. Before joining Lyons Gaddis, Jeff gained valuable experience at the Colorado Attorney General’s office.

Organizations & Community

Jeff is an active member of the Water Section of the Colorado Bar Association and the Boulder County Bar Association, having served as a director in the past.

He currently serves on the Advisory Board of the Getches Wilkinson Center for Natural Resources, Energy and Environment at the University of Colorado School of Law.

Beyond his legal pursuits, Jeff has a passion for outdoor activities. He engages in hiking, skiing, swimming, and cycling. Jeff also enjoys extensive travel adventures with his wife, three children, and their families.