Urban designer – and my former Carnegie Mellon colleague – David Lewis has long said that our older suburbs are the greatest urban renewal challenge of modern times. Lacking concentration, density, transit, historic architecture, and highly developed infrastructure like older center cities, he said, the suburbs pose a much greater challenge to redevelop. Over at The New York Times’ By Design blog, Allison Arieff offers some interesting perspective – and possible solutions (h/t: Allison Kemper).

The problem now isn’t really how to better design homes and communities, but rather what are we going to do with all the homes and communities we’re left with …  As I learned in artist Julia Christensen’s new book, “Big Box Reuse,” when a big box store like Wal-mart or Kmart outgrows its space, it is shut down. It is, apparently, cheaper to start from scratch than to close for renovation and expansion … The silver lining in Christensen’s study are the communities she’s discovered that have proactively addressed the massive empty shells they’ve been left with, turning structures of anywhere from 20,000 to 280,000 square feet into something useful: a charter school, a health center, a chapel, a library. (And, in Austin, Minn., a new Spam Museum.) …

But exurban communities are a unique challenge. The houses within them are big, but not generally as big as, say, Victorian mansions in San Francisco that can be subdivided into apartments. So they’re not great candidates for transformation into multi-family rental housing.  I did visit a housing development last year that offered “quartets,” McMansions subdivided into four units with four separate entrances. These promised potential buyers the status of a McMansion with the convenience of a condominium, but the concept felt like it was created more to preserve the property values of larger neighboring homes than to serve the needs of the community’s residents …

I still dream that some major overhaul can occur: that a self-sufficient mixed-use neighborhood can emerge. That three-car-garaged McMansions can be subdivided into rental units with streetfront cafés, shops and other local businesses.

Wondering what others think, and strategies you may have come across in communities around the world?

The latest issue of Dwell Magazine looks at one of America’s first (and often considered the most successful) urban renewal projects. Detroit’s Lafayette Park, now undergoing a subtle transformation as a new wave of residents including Keira Alexandra and Toby Barlow settle in, remix the past, and make the place their own.

Given the uncertainty looming with the likely restructuring of the automotive and manufacturing base in this area, it’s encouraging to see a vibrant and stable cooperative community within the city that has endured the region’s many changes over the last 50 years. And, who knows, what comes next may in fact be orchestrated from this place.