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Zachary Knox Griefen

Zachary Knox Griefen

also known as Zak Griefen

This attorney is not accepting clients.

Reason: In-House Counsel

About me


My name is Zak Griefen. I graduated from Vermont Law School on a full merit scholarship in 2005, where I earned a J.D., cum laude, and a Master of Studies in Environmental Law, magna cum laude. During law school, I was the Vermont Editor of the Vermont Law Review and a student clinician at the Environmental and Natural Resources Law Clinic.

After law school, I served as a judicial law clerk for the Honorable Thomas Durkin and the Honorable Merideth Wright at the Vermont Environmental Court. The Vermont Environmental Court has broad jurisdiction over environmental matters, hearing appeals from municipal boards and commissions, appeals from Act 250 decisions, and Agency of Natural Resources, Natural Resource Board, and municipal enforcement cases.

After my clerkship I entered private practice with the law firm of Cheney, Brock & Saudek, P.C., in Montpelier, building a practice concentrating  in environmental law and land use permitting.


In October of 2011, I joined the Conservation Law Foundation as an environmental enforcement litigator.  In 2016, I was promoted to Senior Enforcement Litigator. I am curently admitted to practice in Vermont, Federal District Court of Vermont, Massachusetts, Federal District Court of Massachusetts, Federal District Court of Connecticut, Federal District Court of New Hampshire, the State of Washington, and the Second Circuit Court of Appeals. 

Zak Griefen


Practice areas


  1. Environmental: 100%
    10 years

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We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Full Merit ScholarshipVermont Law School2001
Work experience
TitleCompany nameDuration
Senior Enforcement LitigatorConservation Law Foundation2016 - Present
Environmental Enforcement LitigatorConservation Law Foundation2011 - 2016
Litigation AttorneyCheney, Brock & Saudek, P.C.2007 - 2011
Judcial Law ClerkVermont Environmental Division (formerly Vermont Environmental Court)2005 - 2007
Association namePosition nameDuration
Vermont Bar AssociationMember2005 - Present
American Bar AssociationMember2004 - Present
Trout UnlimitedLife member2003 - Present
Sierra Club, Vermont ChapterChapter Chair2011 - 2011
Sierra Club, Vermont ChapterWetlands & Water Quality Committe Chair2010 - 2014
Legal cases
Case nameOutcome
Glassford v. BrickKicker and GDM Home Services, Inc., 2011 VT 118Plaintiff wins!
Rivers Development, LLC, Docket Nos. 7-1-05 Vtec; 68-3-07 Vtec; & 157-7-08 VtecQuarry denied.
See all legal cases 
Publication nameTitleDate
Green Mountain DailyThe Green Mountain National Forest, Climate Change, The Feds, & Forest Management2011
School nameMajorDegreeGraduated
Vermont Law SchoolN/AJD - Juris Doctor2005
Vermont Law SchoolN/AMaster of Studies in Environmental Law, magna cum laude2005
University of New Mexico School of LawN/AB.U.S., cum laude2002
Speaking engagements
Conference nameTitleDate
Public Interest Environmental Law ConferenceCWA Permitting & Impaired Waterways2015
Public Interest Environmental Law ConferenceStormwater Citizens Suits2012
Boundary Issues and Easement LawSpecial Boundary Considerations, Conservation Easements, and Ethics in Boundary Law2011
VBA Midwinter ThawEnvironmental Law Session CLE2010
Land Use and Zoning Law Litigation CLELand Use and Zoning Law Litigation2008
Land Use and Zoning Law Litigation CLEPracticing before the Vermont Environmental Court, a Primer2007