Cozen O’Connor: Mazo, Samantha L.

Samantha L. Mazo


Washington, D.C.

(202) 747-0768

(202) 861-1905

Samantha has more than a decade of zoning experience in representing clients in all aspects of the development life cycle. She has worked on matters spanning from conducting zoning due diligence prior to purchase, to processing cases for development approvals before the District of Columbia’s Board of Zoning Adjustment, Zoning Commission, Historic Preservation Review Board, and D.C. Court of Appeals, to coordinating construction permitting approvals from the District’s Department of Consumer and Regulatory Affairs.

Samantha advances her clients' interests to governmental and community stakeholders in order to achieve viable and comprehensive development outcomes. She also works closely with other members of the development team to prepare architectural plans and other materials necessary for presentation to the District and local community. In addition to her focus on zoning, land use, and development, Samantha also possesses experience advising clients on a broad range of licensing, advertising, compliance, and distribution issues before the District of Columbia Alcoholic Beverage Control (ABC) Board.

A third-generation Washingtonian, Samantha is involved in the community, having served on the board of a regional chamber of commerce and chaired a local transportation advisory commission. Samantha is currently on the Steering Committee for the D.C. Bar Association's Real Estate, Housing, and Land Use Community. She frequently presents on matters relating to Washington, D.C., zoning and permitting. Samantha was named as one Washington D.C.’s top “35 under 35” in Washington, D.C., by Bisnow Media. 

Samantha earned her J.D., cum laude, from George Washington University Law School, her master’s degree in modern history from Oxford University, and her undergraduate degree from Princeton University.



D.C. Council Approves Measure to Curb Wave of Development Appeals

October 09, 2019

Meridith Moldenhauer and Samantha Mazo comment on the D.C. Council’s vote to approve amendments to the Comprehensive Plan's Framework Element nearly two years after the Office of Planning introduced the proposed changes in an article in Bisnow.

‘A Light at the End of the Tunnel’: D.C.'s Development Appeals Freeze Beginning to Thaw

July 18, 2019

Samantha Mazo comments on the positive effects a recent D.C. Court of Appeals’ decision could have on real estate developers in an article in Bisnow.

Cozen O'Connor Promotes 27 to Membership

May 01, 2019

Cozen O'Connor is pleased to recognize 27 attorneys with the promotion to member: Dylan Alper, Philip J. Berens, Alison Weintraub Berson, Evan Berquist, Alexandra Campau, Alissa K. Christopher, Matthew D. Clyde, Rachel Collins Clarke, Michael A. Corgan, Matthew L. Elkin, Nicole M. Ellis, Alex H. Hayden, David S. Huard, Haryle Kaldis, David Kirchblum, Matthew Evan Lewitz, Jesse Ryan Loffler, Samantha L. Mazo, Lindsey A. Miller, Jeffrey M. Monhait, Jonathan Nase, Jacqueline Promislo, Shelby K. Riney, Kelly Shinn, Terri A. Sutton, Daniel P. Thiel, and Laura Zulick.

Cozen O’Connor Continues Rapid Expansion in Washington, D.C., with Addition of Zoning, Land Use & Development Group

June 27, 2017

The group is led by Meridith Moldenhauer, who joins as a member, and includes Samantha Mazo, who joins as of counsel, Alyssa Bigley and Eric DeBear, who both join as attorneys, and Stephen Varga, who joins as planning services director.


Edits to the Comprehensive Plan Framework Element Released [Get The Dirt Blog]

July 02, 2019

Today (July 2nd), Chairman Mendelson released his proposed revisions to the Comprehensive Plan’s Framework Element, as we predicted last week.  A copy of the Chairman’s edits is located on his site HERE. The First Vote is scheduled for next Tuesday (July 9). We have not had much time to digest the...

The District’s Comprehensive Plan Amendment Process Is Starting Up Again: First Vote on July 9, 2019 [Get The Dirt Blog]

June 24, 2019

The Comprehensive Plan amendment process is lurching back to life and the DC Council’s first vote is scheduled for July 9, 2019.  As we noted last month, the District of Columbia’s Office of Planning (“OP”) launched its DC2ME survey to solicit input on the ‘values’ that District residents want to be...

Top Four Value-Adds for Hotels in the District of Columbia [Get The Dirt Blog]

October 10, 2018

The District hotel market is hot. states that 9.58 million people in the U.S. visited Washington, DC overnight within a period of 12 months and that, in 2014, Union Station was the fourth most-visited tourist attraction in the world, with 32.9 million visitors.  Here are four areas...

Into the Belly of the Beast [Get The Dirt Blog]

April 03, 2018

On the night of March 20th, 2018, I unwittingly walked into hostile territory – the DC Council chamber during the epic 13-hour public hearing on the proposed amendments to the Framework Element of the District’s Comprehensive Plan. Perhaps the Washington Post headline said it best: “Dry DC...

Top Five Key Factors to Look at When Buying Property to Develop in Washington, DC [Get The Dirt Blog]

March 01, 2018

Thanks to the recent development boom, the District certainly has certainly become hip.  It follows suit that many multi-family, condo and mixed-use developers are looking in the District for good buys to develop or to hold. These developers call us all the time to ask about properties.  We look...

Events & Seminars

Past Events

ICSC U.S. Shopping Center Law Conference 2019

October 25, 2019 - San Diego, CA


  • The George Washington University Law School, J.D., cum laude, 2003
  • Oxford University, M.A., 2000
  • Princeton University, A.B., cum laude, 1999
  • District of Columbia
  • Maryland