Urban sprawl is often framed as a practical response to growth. Land is cheaper. Housing can be delivered quickly. Political resistance appears lower. But the long-term consequences are rarely counted.

In this episode of The Responsible Edge, architect and urban designer Alec Tzannes reflects on why cities continue to expand outward, despite decades of evidence that this approach fragments communities and accelerates environmental damage. Drawing on more than forty years of practice, he argues that sprawl is not only a planning failure but a cultural one.

Tzannes traces his thinking back to the 1970s, when early environmental research challenged the assumption that growth could continue without limit. He explains why much modern development, including poorly designed density, lost public trust, and how this legacy still shapes resistance to urban living today.

Central to the discussion is a deceptively simple idea. “The first principle of sustainability is make it beautiful.” For Tzannes, buildings and neighbourhoods that people love are more likely to endure, reducing the need for demolition, rebuilding, and further land consumption.

The conversation explores real-world examples of dense neighbourhoods that work, the political incentives that favour sprawl, and why containing the urban footprint may be one of the most urgent responsibilities facing cities.

This is a measured discussion about systems, culture, and the long view. It asks not how cities can grow faster, but how they can grow better.

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