Board of Directors

Tom Chmill, President, 2022

Tom is a professional engineer currently working as a building enclosure consultant for Simpson Gumpertz & Heger (SGH) in Washington, DC. Originally from Pittsburgh, Tom graduated from Penn State in 2012 where he received a degree in Civil Engineering with a structural focus. He then went on to work for a large engineering and construction company in the oil and gas industry where he planned and executed complex projects across the Midwest and Northeast. Since joining SGH in 2016, Tom has found that his passion lies in the investigation and remediation of existing buildings and structures. His project experience includes and wide variety of historic structures ranging from Smithsonian Institution museums in Washington, DC to 19th century academic buildings on the University of Virginia's campus in Charlottesville, VA.

Tom serves as Chair for APT's EPSP committee.


Tony Nicastro, Vice President, 2022

Anthony (Tony) Nicastro has national experience in the investigation, design, and construction contract administration of building enclosure components for major institutional, commercial, educational, and residential buildings. His affinity for problem solving and the built environment led him to join SGH in 2006. Tony has been thrilled to a manage a diverse set of projects, and he has a passion for preservation and rehabilitation on Washington, DC buildings including museums on the National Mall in Washington, DC and other major federal institutional works. He appreciates his collaborations with architects, building owners, and contractors, and most enjoys providing long-term solutions by analyzing facade design concepts, evaluating construction defects, and developing repairs for complex enclosure issues.

Tony serves as Chair for APT's Marketing committee.

Naomi Doddington, Treasurer, 2019-2022

Naomi is a Project Manager and Historic Preservationist with Consigli Construction Company working on historic rehabilitation projects. Prior projects include work at the US Capitol, the French Ambassador's Residence, and Menokin Plantation. She has a B.F.A. in Theatre Production and an MSHP from Clemson University. Naomi first moved to DC to work with the National Parks Service's famed Heritage Documentation (HABS/HAER/HALS) Program before transitioning to Project Management. She served as an adjunct professor at Clemson University teaching a course in project management to future Historic Preservation Professionals. She served as co-chair of the Events Committee for two years and is in her fourth year as Treasurer. 


Amee Bearne, Secretary, 2022

Amee Bearne, AICP, is originally from Washington State, but gained her appreciation for historic preservation while living in the United Kingdom, San Francisco, and the Washington, DC area. Amee received her masters degrees in Historic Preservation and Community Planning at the University of Maryland, focusing on resiliency and sustainability. After graduation, she worked for FEMA as an Historic Preservation Specialist, working on recovery from Hurricane Harvey in Houston, TX and the 2018 floods in Maryland. Currently, Amee works for an affordable housing developer working in neighborhood revitalization. She is an accredited planner with the American Planning Association.


Zachary Burt, Board Member at Large, 2022

Zachary is the Community Outreach and Grants Manager at the DC Preservation League. He holds an MA in Historic Preservation from Goucher College and a BS in Political Science from the University of Utah. He is originally from Salt Lake City, Utah. Prior to working at the DC Preservation League, he worked for seven years in government relations at a professional association. Despite his early interest in politics and government, he has always been passionate about history and architecture, and went back to school to study historic preservation. He loves exploring and photographing DC’s historic buildings and neighborhoods – as well as historic places around the country.

Zachary serves as Co-Chair for APT's Communications committee.


Christopher DeRosa, Member at Large, 2019-2022

Chris is an engineer and registered architect at Walter P Moore with a special focus on building enclosure consulting. He has more than 10 years of experience on rehabilitation building projects.  Chris has developed a strong appreciation for DC’s rich diversity of historic buildings, and a commitment to historic preservation.  In addition to APT, Chris is on the board and review committee for the Mount Pleasant Historic District and the American Institute of Architects Building Enclosure Council (BEC).

Chris serves as Co-Chair for APT's Symposium committee.


Kathleen Maloney Lo, Board Member at Large, 2022

Kathleen is a historic preservation specialist and architectural historian based in Washington, D.C. She holds an MA in International Affairs - Cities and Urbanization from the New School and an MS in Historic Preservation from Columbia University, where she served as managing editor of Future Anterior, a journal of historic preservation history, theory, and criticismShe has also worked in nonprofit fundraising, membership, and program development for arts and education institutions in NY and DC. Kathleen looks forward to contributing more to APT DC's current and future initiatives.

Kathleen serves as Co-Chair of APT's Events committee


David C. Overholt, Board Member (Returning Member At Large), 2022

David is a Senior Project Manager for the Mid-Atlantic office of The Christman Company, based in Sterling VA. Forty years in the construction field provides a broad base of experience and knowledge to draw on. Current project: Russell Senate Office Building Exterior Envelope Repair & Restoration, a component of the United States Capitol Complex. The  building was designed in the Beaux Arts style by Carrere and Hastings. As Senior Conservator at Building Conservation Associates (BCA) and Senior Project Manager at Archa Technology, Ltd. (ATL), David Overholt brought years of hands-on experience in preservation building trades to the sister companies based in New York City.  Mr. Overholt was the Preservation Projects Director at the President Lincoln and Soldiers' Home National Monument, an Historic Site of the National Trust for Historic Preservation. For fifteen years, Mr. Overholt was the Restoration Project Manager at the Lyndhurst Estate, also an Historic Site of the National Trust. Mr. Overholt teaches HISP670, the Conservation of Historic Places, at the University of Maryland Graduate Program in Historic Preservation. He has collaborated on projects that include an architectural competition alternate winning design for the Women in Military Service to America Memorial at the gates of Arlington National Cemetery, and the documentation of St. Kolumba, the ruin of a Romanesque church in Cologne, Germany—the site of a new art museum. In 1994 he was the recipient of the National Trust for Historic Preservation President’s Award. 


Ellen O'Brien, Past Chapter President, 2021

Ellen is originally from Cincinnati, Ohio and graduated from Vanderbilt University with a degree in Civil and Environmental Engineering. She was first introduced to preservation while interning at the Octagon House in college. After graduating, Ellen worked with Clark Construction in DC for two years before going back to school and getting a master's degree in Structural Engineering with a focus in Structural Forensics from Columbia University. During her time at Columbia, Ellen studied structural failures and did research on the prevention of structural collapses. She currently works as an engineer at Silman and is enjoying working on a wide range of interesting projects.

Ellen serves as Co-Chair for APT's Communications committee, and Co-Chair for the Symposium committee.

Bill Marzella, Past Chapter President, 2020

Bill Marzella joined the APT DC board in 2016 as the Marketing Committee Chair, then serving as Treasurer for two years before moving to the Vice President position in 2019.  After seven years of experience at EHT Traceries, in 2019 Bill joined the Advisory Council on Historic Preservation as a Program Analyst and Liaison to the Bureau of Land Management.  Bill also serves as a Volunteer for the National Building Museum and is a member of the board of the Latrobe Chapter of the Society of Architectural Historians. Bill received an MA in Historic Preservation Planning from Cornell University and a BS in Architecture from the University of Cincinnati.

Bill serves as Co-Chair on APT's Events committee.

Committee Members

Laura Lavernia, Events Committee, 2022


Tom Vitanza, EPSP Committee, 2022

© 2021 The Association for Preservation Technology, Washington DC Chapter.
P.O. Box 9813 Washington, DC 20016
APT DC is a 501(c)3 non-profit organization based in Washington, DC. ~ All rights reserved.

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