Sitio – Architects in Philadelphia
Sitio stands tall as a collaborative hub of visionary architects, urban designers, and planners, nestled in the vibrant city of Philadelphia. Founded by the esteemed Antonio Fiol-Silva, this studio has etched its name with a distinguished portfolio showcasing award-winning projects that redefine architectural excellence.
A Visionary Approach to Transformation
At Sitio, the vision is rooted in an unwavering commitment to crafting transformative developments that seamlessly integrate with their surroundings. Led by Antonio Fiol-Silva’s unparalleled expertise, the firm excels in creating context-sensitive architectural marvels, ranging across various scales and contexts.
Recognition of Excellence
The dedication to placemaking, sustainability, and design excellence has garnered Sitio numerous accolades. Notably, they’ve been honored with seven ULI Philadelphia Awards for Excellence, alongside the prestigious ULI Global Award for Excellence. These accolades stand as a testament to their innovative approach to design and urban development.
A Maestro of Innovation: Antonio Fiol-Silva
As the Founding Principal of Sitio, Antonio Fiol-Silva is a nationally acclaimed leader in planning and design. His trailblazing work has been showered with awards, including the ULI Global Award of Excellence for the SteelStacks Art and Cultural Campus and the AIA National Urban Design Award for the US House of Representatives Buildings & South Capitol Area Plan in Washington, DC.
Leading Change Beyond Architecture
Antonio’s impactful leadership extends beyond Sitio. His global governance role at the Urban Land Institute and key positions in organizations like AIA Philadelphia and the Center for Architecture + Design reflect his dedication to shaping the future of urban development. His insights, shared through lectures and media appearances, underscore his commitment to nurturing the industry’s next generation.
Academic Pedigree and Global Vision
Antonio’s academic foundation from Cornell University and Harvard University, complemented by a Fulbright Fellowship in Barcelona, Spain, speaks volumes about his dedication to global perspectives in design. His professional journey reflects a fusion of knowledge, innovation, and a relentless pursuit of architectural excellence.
Redefining Architectural Excellence: The Sitio Way
Sitio’s journey under Antonio Fiol-Silva’s guidance epitomizes a dedication to creating transformative architectural experiences that merge seamlessly with the local context. Through accolades, innovation, and a visionary approach, Sitio’s legacy continues to redefine architectural excellence.

