Gregory serves on the faculty of FIT's Interior Design Department, where he has been teaching an introduction to Historic Preservation since 2008. He has also served as a guest lecturer, presenter, moderator, panelist and tour guide on a variety of programs:
Tour Guide: Upper West Side Brownstone Blocks, Open House NY-Landmark West!, NYC, 2015.
Panelist: "Preserving Our Architectural History: The Business Case for Landmarks Preservation," NYC Landmarks50 Alliance, Brooklyn, 2015.
Presenter: "Dahlander's Brooklyn," Örebro County Museum, Örebro, Sweden, 2015.
Presenter: "Preserving Brooklyn's Neighborhoods, Enhancing Brooklyn's Economy: An Examination of Three Main Streets Where Commerce, Preservation, and Creativity Intersect," Historic Preservation in America's Legacy Cities Conference, Cleveland, OH, 2014.
Presenter: "Historic Tax Credit Opportunities in New York State," New York State Association for Affordable Housing Conference, NYC, 2014.
Moderator: "Preservation Campaigns and Neighborhoods," Preservation Now!, Historic Districts Council 19th Annual Preservation Conference, NYC, 2013.
Guest Lecturer: "Section 106," Preservation Law, Historic Preservation Program, The Graduate School of Architecture, Planning and Preservation at Columbia University, NYC, 2012.
Tour Guide: Morningside Heights, Morningside Heights Historic District Committee, NYC, 2012.
Presenter: "Reviving a Classic: The Architectural Vocabulary of Greenwich Village," Greenwich Village Society for Historic Preservation Continuing Education Course for Real Estate Brokers, NYC, 2011/2012/2013/2014/2015 .
Tour Guide: West End Avenue Historic District Extension, Landmark West!, NYC, 2011.
Moderator: "Open Space in the Private Realm," The Great Outside: Preserving Public and Private Open Spaces, Historic Districts Council 18th Annual Preservation Conference, NYC, 2012.
Presenter: "The Nuts and Bolts of Historic Resource Surveys," Coffee Talk Series, Historic Districts Council, NYC, 2011.
Presenter: "Historic Preservation and Preserving Cultural Assets," Livable Neighborhoods Program, Municipal Art Society, NYC, 2011.
Moderator: "New Landmarks: Modern, Vernacular and Cultural Sites," Preservation in New York: The Next Generation, Historic Districts Council 16th Annual Preservation Conference, NYC, 2010.
Moderator: "Tools of the Trade: Preservation Practices for the Next Generation," Preservation 2030, Historic Districts Council 14th Annual Preservation Conference, NYC, 2008.
Presenter: "A Primer on New York City Landmarks Law and the Landmarks Preservation Commission," Landmark West! Real Estate Broker Preservation Seminar, NYC, 2006/2007.
Panelist: "Adaptive Re-Use and Historic Tax Credit Incentives," Real Estate Roundtable, Real Estate Development Program, The Graduate School of Architecture, Planning and Preservation at Columbia University, NYC, 2005/2007.
Presenter: "Olmsted in the 20th Century: Tracing the Evolution of the Union County Park System and Assessing Its Significance," New Jersey Chapter of the American Society of Landscape Architects Annual Conference, Atlantic City, NJ, 2005.
Tour Guide: Lincoln Center, DOCOMOMO 8th International Conference, NYC, 2004.
Panelist: "Homeowner Seminar: Funding Sources for Historic Preservation Projects," Minority Contractors & Real Estate Professionals Conference, NYC, 2000.