In this photo taken Thursday, March 15, 2012, PVC pipes are seen next to new single-family detached homes being built by Lennar at the "Aria at West Creek" development in Santa Clarita, Calif. U.S. ... more 
In this photo taken Thursday, March 15, 2012, PVC pipes are seen next to new single-family detached homes being built by Lennar at the "Aria at West Creek" development in Santa Clarita, Calif. U.S. builders started work on slightly fewer homes in February, but they began preparing for what could be the healthiest spring buying season since the housing bubble burst. (AP Photo/Damian Dovarganes) less 
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Associated Press | Photo By Damian Dovarganes
Tue, Mar 20, 2012 10:47 AM EDT