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Executive Committee 2018-20

Doris Eichburg, President, is an APTI member and principal at Building Diagnostics, Inc., an Austin engineering firm, where she specializes in analyzing construction failures and developing solutions for historic structures as well as commercial, residential and institutional facilities. Doris has a Master’s Degree in Construction Engineering and Project Management from UT Austin and currently participates in research conducted at the ‘The Durability Lab’ – a testing center established by Building Diagnostics at UT Austin. Doris is an active APTI member, and is the formal Co-Director of the APT Texas Austin Region. During the past two years, Doris and Co-Chair John Kisner have organized APT Texas social events and a lecture on the history of cast concrete. In addition to APT, Doris is a member of the Austin Association of Facility & Maintenance Engineers, Building Owners and Managers Association (BOMA), and Building Enclosure Council (BEC). deichburg@buildingdx.com

Doris Eichburg, Vice-President

Izabella Dennis, Vice-President, holds a BA in Urban Studies with a concentration in architecture from Barnard College and a MS in Historic Preservation with an emphasis in materials conservation from the University of Texas at Austin School of Architecture. Both of her theses explored the ethics and practicality of preserving the total work of art within the built environment, examining aspects such as space, color, and secondary domestic material culture. She spent a decade working in objects conservation in Texas and the Southwest and is currently an architectural historian and conservator based in Austin, Texas. Izabella has particular interests in the conservation and preservation of wood structures, the vernacular architecture of Texas, and historic color. She has spoken at conferences nationally and internationally about her work in historic paint and is an active member of the preservation community in Texas. izabella.dennis@gmail.com


Andrew Billingsley, Treasurer, is an Assistant Lecturer at Texas A&M University and has been involved in the preservation, non-destructive evaluation, and documentation of historic sites and structures for nearly ten years. He received a Bachelor of Science degree from California State University, Chico in Concrete Industry Management, with a Minor in Business Administration, and is currently pursuing a doctorate in Architecture at Texas A&M University, with a graduate certificate in Historic Preservation. Andrew is an active member of the Association for Preservation Technology International, the Construction History Society of America, the Archaeological Institute of America, the International Concrete Repair Institute, and the American Concrete Institute. He has also formally held a position on the Board of Directors for the Concrete Preservation Institute, where he was an Instructor and Project Manager for their field school on Alcatraz Island in San Francisco, California. abillingsley@tamu.edu


Stephanie Phillips, Secretary, is a Senior Historic Preservation Specialist for the City of San Antonio’s Office of Historic Preservation. Her work focuses on architectural design review and the development of community-based projects and resources, including the Rehabber Club initiative. Prior to joining the OHP team, Stephanie served as a Project Design Assistant with the State Preservation Board in Austin, primarily in the coordination and management of the 2016 Exterior Preservation Project of the Texas State Capitol building. In addition to her involvement with APT, Stephanie is a Board Member of Preservation Action and is on the planning committee for the Power of Preservation Foundation’s annual fundraising gala, which raises funds for hands-on preservation projects throughout San Antonio. She holds a M.S. in Historic Preservation from The University of Texas at Austin and a B.S. in Interior Architecture from the University of Wisconsin-Madison. smphillips3@gmail.com


Immediate Past President

Nicky DeFreece Emery, Immediate Past President, has been practicing in the fields of architectural history, historic preservation and architectural conservation for over 15 years. She is the founder of AdaptĒ€re:Adapt Preservation and Conservation, LLC, and is a Lecturer at the University of Texas at Arlington College of Architecture, Planning, and Public Affairs. Previous positions have included Senior Architectural Historian and Conservator at URS/LopezGarcia Group, Conservator at Quimby McCoy Preservation Architecture, and Conservator at the Mission San Juan Capistrano. She received a Bachelor of Arts degree from Drury University in Springfield, Missouri, where she specialized in the study of Art and Architectural History. She continued her education at the University of Pennsylvania, where she received a Master of Science in Historic Preservation, with a concentration in building materials conservation, and at the University of Texas at Arlington where she earned a Master of Architecture. Nicky has performed conservation and preservation work in the majority of U.S. regions, including Save America’s Treasures and UNESCO World Heritage sites. Nicky is active in numerous organizations including the Association for Preservation Technology International, and is Vice President of the APT Texas chapter. She is also an active member of the American Institute for Conservation, the US Green Building Council, the American Institute for Architects Dallas Chapter, and Preservation Dallas.


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