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Watch Cities Being Born on Trulia: Addictive!

Posted by: Peter Coy on June 2, 2007

I hate to say something nice about Trulia so soon after plugging the site, but you absolutely have to check out a new Trulia feature called Hindsight, which dramatically and colorfully illustrates the birth of cities.

Choose a city and Trulia shows on a satellite image where houses were built each year. Each house is a dot, and each decade the dots are a different color. The animation zooms through the decades, with new houses exploding onto the map the year they’re constructed and then shrinking back to pinpoints. You can see the almost-overnight construction in Levittown, N.Y., after World War II. The deathly quiet of construction in Detroit in recent decades. The massive boom in Las Vegas. And of course you can put in your own home’s Zip code. (The image here is from Plano, Tex.)

Hindsight presumably doesn’t show homes that were built and later torn down, so it understates the amount of construction in the past. But that’s a quibble.

Check it out! (Now that’s it—no more plugs for Trulia the rest of 2007.)

Reader Comments

Pete Flint from

June 2, 2007 11:54 AM

Thanks for the mention - yes, I'm totally addicted to this too!
Now you've just thrown down the gauntlet for us to build even more stuff, so you'll have to write about us again in this space!


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BusinessWeek editors Chris Palmeri, Prashant Gopal and Peter Coy chronicle the highs and lows of the housing and mortgage markets on their Hot Property blog. In print and online, the Hot Property team first wrote about the potential downside of lenders pushing riskier, "option ARM" mortgages and the rise in mortgage fraud back in 2005—well ahead of many other media outlets. In 2008, Hot Property bloggers finished #1 in a ranking of the world's top 100 "most powerful property people" by the British real estate website Global edge. Hot Property was named among the 25 most influential real estate blogs of 2007 by Inman News.

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