As cities around the world confront questions of growth, livability, and equity, Sungduck Lee, Assistant Professor and Director of the Geosocial Visualization Lab at the College of Design, offers a new way to think about the impacts of density and the communities it affects. Her new co-authored book, Urban Density Contextualized: Design Strategies for Building Density in Cities (Routledge), examines how design can foster more inclusive, resilient, and human-centered urban environments.
In her new co-authored book, Urban Density Contextualized: Design Strategies for Building Density in Cities, Dr. Sungduck Lee explores how cities can use density to promote livability, equity, and sustainability. We asked her to share insights from her research and what it means for designers and planners today.
Your background bridges data visualization, urbanism, and social equity. How has your design training influenced the way you visualize and communicate complex ideas about urban density – and how might visual thinking help communities better understand their built environments?
My design training has equipped me to visualize density as a layered phenomenon that involves spatial, functional, and systemic aspects. I communicate these concepts through various visual tools, such as maps, diagrams, models, and sketches, which help make complex ideas more accessible and grounded. In the context of the book, it is important to recognize that density is not merely about "more buildings for more people.” Instead, it should be understood as "density in context"—taking into account social, cultural, and physical dimensions.
Visual thinking is vital for bridging communities, as it transforms abstract planning concepts into tangible, understandable, and discussable ideas. It empowers communities to engage with their built environment actively, encouraging them to see, question, and participate, rather than remain passive.
In your book, you and Dr. Talen reconceptualize density as more than just a measure of people or buildings. What misconceptions about density do you think most often hold cities back from achieving more equitable and livable growth?
Many cities equate density with overcrowding, congestion, or loss of neighborhood character. This misconception treats density as a numerical problem rather than a design opportunity. In reality, well-planned density can enhance livability by supporting walkability, local businesses, diverse housing, and sustainable infrastructure. When people fear “too much density,” they often react to poor design—lack of open space, bad transitions, or insufficient services—not density itself.
Another common misunderstanding is that low density guarantees quality of life or that high density automatically ensures affordability. Both assumptions miss the importance of context and equity. Livable, inclusive density depends on how it’s distributed, designed, and governed—how it fits local culture, supports mixed incomes, and provides access to everyday amenities. When cities move beyond numbers to focus on design quality and social inclusion, density becomes a powerful tool for equitable growth rather than a source of conflict.
A key theme in the book is how density can “leverage context” to enhance livability.
What does it look like when density successfully fits its social and physical context and what design elements make that possible?
When density aligns with its social and physical surroundings, it feels like a natural evolution of the city rather than an intrusion. Buildings respond to neighborhood scale and rhythm; public spaces remain open, welcoming, and well-used; and a mix of housing types enables people of varied incomes and lifestyles to share the same community.
Successful contextual density relies on design tools such as gradual height transitions, active street frontages, fine-grained building forms, and mixed uses that promote walkability and social connection. It also engages with local culture and community priorities through inclusive housing and participatory planning. In essence, density enhances its context when it strengthens a place’s identity and livability—when it adds depth and vitality instead of erasing what makes the place unique.
As director of the Geosocial Visualization Lab, you work at the intersection of data, mapping, and community experience. How can visualization tools make density – and its social impacts – more tangible to the public and help support more inclusive design conversations?
Visualization tools make the often-abstract idea of urban density visible and tangible. By turning data on population, land use, housing, and social life into clear spatial stories, people can literally see how density affects daily experience—where it supports transit, parks, and services, and where it strains infrastructure or affordability.
In the Geosocial Visualization Lab, we combine quantitative data—such as census, mobility, and environmental metrics—with lived experience to explore density through visual narratives. Interactive maps and 3D perspectives let residents test scenarios: What if building heights increase here? How would that change sunlight, walkability, or land use mix?
These tools shift public debate from abstract fears (“too much density”) to concrete understanding (“this is how density looks and feels”). They also open up the design process, allowing non-experts to engage directly with spatial information and build a shared vocabulary with planners and designers. In short, visualization tools make density understandable, discussable, and negotiable—creating a foundation for more inclusive, data-informed urban design strategies.
Your work brings a strong ethical focus to planning and design. What advice would you give to emerging designers and planners who want to engage more deeply with the social and justice dimensions of urban development?
I would advise new designers and planners that social justice in urban development begins with solid evidence, accountability, and respect for the lived experiences of local communities. While technical skills and creativity are essential, ethical practice requires using data to understand who benefits from decisions—and who might not.
You might set equity as an explicit goal. Try using data to track impacts on housing, mobility, green space, and economic opportunities, and be open to adjusting your approach as the evidence evolves. Sharing your data and visualizations can also help residents see trade-offs clearly and build trust through transparency.
It’s worth remembering that design is never entirely neutral. Every dataset and plan reflect certain choices and values. By taking a data-driven approach, you can help uncover inequalities, identify opportunities, and create fairer, more inclusive design outcomes.
