how do i start planning a second story additionmy home is 1200sq i would like to add on a secound story of about 750sq.one bedroom and a bath, and a livingroom.February 27 2010 - Half Moon Bay00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.