Antonio Fiol-Silva FAIA, LEED AP
Founding Principal

Antonio, is a nationally recognized leader in planning and design, and the Founding Principal of SITIO architecture + urbanism.  His inter-disciplinary work has garnered numerous  awards and recognition that include: a ULI Global Award of Excellence for the SteelStacks Art and Cultural Campus; an AIA National Urban Design Award for the US House of Representatives Office Buildings & South Capitol Area Plan in Washington, DC; a U.S. Green Building Council’s GreenSource magazine cover feature in the for the Charlottesville Downtown Transit & Visitor Center; and a USGBC Project of the Year Award for Paseo Verde, the nation’s first LEED ND Platinum Certified project.   His high-profile leadership was recently recognized by a Hispanic Professional of the Year Award by the GPHCC.

Antonio serves as a Global Governing Trustee of the Urban Land Institute and as a Faculty and National Advisory Board member of the joint NLC/ULI Rose Center for Public Leadership.  He widely lectures on urban development, serves on industry juries, and appears in print and media.  He has been District Council Chair of ULI Philadelphia, President of AIA Philadelphia, and President of the Center for Architecture + Design.   He has served as Commissioner of the Delaware River Port Authority, the Philadelphia Historical Commission, and Board member of the Central Philadelphia Development Corporation. Antonio has a Bachelor of Architecture from Cornell University, a Master of Architecture in Urban Design from Harvard University and was a Fulbright Fellow in Barcelona, Spain. 

contact Antonio



Karen Blanchard  AIA, LEED AP BD+C

Karen is a Principal at SITIO architecture + urbanism where she is focused on delivering design excellence to multifaceted projects. Her vast experience ranges in scale and typology – she is fully engrossed as an architect and urban designer on civic and cultural, residential, educational and mixed-use projects. Karen’s commitment to design and the profession has resulted in numerous project design awards as well as being presented the AIA Philadelphia Young Architect award. Karen was the 2018 President of AIA Philadelphia, Co-Chair of the AIA Philadelphia Women In Architecture Committee, and currently sits on the AIA Philadelphia Board of Directors and their Executive Committee. In addition, she serves her community on the Board of Directors with the Fairmount Community Development Corporation. As a graduate from Thomas Jefferson University, Karen has stayed connected with the University as an adjunct faculty member and now sits on the College of Architecture and the Built Environment Advancement Council as well as their Lab for Urban and Social Innovation Board.

contact Karen