I am trying to locate information on new home sales vs existing home sales in Houston.
I found several sources that you may want to look at. It seems like Houston Area Realtors and the Texas A&M Real Estate Center are especially good sources.
Here is the link for the Real Estate Center: http://recenter.tamu.edu/. You may want to look at the data links, as well as what comes up on this page. Since this is coming from a university, it should be a very credible source.
Here is the link for Houston Area Realtors’ most recent report: http://www.har.com/MLS/dispPressRelease.cfm. I couldn’t locate a section of just statistics on their site, but past press releases should tell about past months ( in the Newsroom section).
Finally, another good source would be the Houston Chronicle, and we have it in a database going back through the early 80’s, listed in the alphabetical order under the Databases tab in the library's home page at http://www.uhd.edu/library/. Search for
"Houston housing market".