Tom Brady and Gisele's Custom-Built Castle

Supermodel Gisele Bündchen and her hubby, New England Patriots quarterback Tom Brady, are that much closer to seeing the completion of their 22,000-square-foot, Los Angeles home now that the roof is on.

Custom-built homes, like theirs in the Brentwood neighborhood overlooking Gov. Arnold Schwarzenegger's house, comprise 30 percent of the housing market. That's up from 20 percent during the boom years, says Donna Reichle, a spokesperson for the National Association of Home Builders. "Obviously that is an increased share of a much-diminished total market," she told HousingWatch.

Although the housing market is not as robust as it was, and homebuilders are among those suffering in its decline, they are feeling more confident about the market, says a recent NAHB survey. Homebuilder confidence is up three points, its first increase in five months.