That's how many new units of housing San Francisco added in 2011, the lowest since 1993.
See what Sunday's fearsome "ring of fire" looked like from around the world.
How bikeable is your city?
The job market for this year's college graduates is tough, but choosing the right city can make all the difference.
Sizing up the global clout of U.S. cities.
Can cities make it just as easy for citizens to engage in the physical world as the digital one?
Your sense of smell is intimately connected to your experience of a place and your memory of it. So why don't cities take greater advantage of this?
A look at how different cities spent International Labor Day.
Even 47 years ago, American architects saw the perils of sprawl and car-oriented development.
Urban designer and writer Darrin Nordahl thinks it's time for advocates of alternative transportation to stop trying to appeal to reason and go for the gut instead.
I don't care what you purists think, these e-bikes are a godsend to hilly cities everywhere.
Long before the invention of social media, a man named Donald Appleyard was investigating how automotive traffic isolates us from one another.
Tips on street portraits from New York's resident photographer.
What Foursquare can teach us about how people use a city.
The Bay Area Rapid Transit system is deploying vinyl seats that don't cough up clouds of filth when smacked, like the wool ones do.
20 years since Camden Yards opened in Baltimore, a look back on the stadium design that's emerged since.
The failure of San Francisco's "TacoCopter" is just one example of how we are failing at creating a functional, robotic delivery boy.
Tired of listening to your neighbor's shoes, the garbage truck, and the sound of car traffic? What if you didn't have to?
How sensors and computers and phone apps are revolutionizing the way cities handle their parking spaces.