Steve Wynn has plans to add 5,200 rooms and significant meeting space behind current Las Vegas properties.

Behind the core Wynn Las Vegas, Steve Wynn hopes to build two new hotels and add 1.8 million square feet of meeting space.

His lavish Encore project isn’t even complete, but already, Steve Wynn is planning his next great feat. Wynn, during a conference call in May, told investors that he plans to build utilize the golf course grounds behind Wynn Las Vegas and the Encore project to build two new hotel towers and a massive meeting and convention facility.

Wynn’s plans call for 5,200 rooms and 1.8 million square feet of conventions space. No cost estimates or timetable was given for the project, but Wynn said the project would include features like underground trams to shuttle passengers to and from nearby convention facilities and a manmade lake with fountains similar to his former Bellagio property.

“The layout of our property lends itself to such a beautiful arrangement,” Wynn said during the conference call.

Many expect the announced project to be completed after the 2010 date of Las Vegas Sands $680 million renovation and expansion of its own Sands Expo and Convention Center. Wynn’s convention facility would be adjacent to both the Sands and the Las Vegas Convention Center, creating a meeting and convention “complex” with more than five million square feet between the three. Wynn’s facility would also be among the top in the nation in size.

“Both of the new hotels will be completely integrated with the exhibit space,” Wynn was quoted in a transcript of the conference call published by the Web site Seeking Alpha. “And when I say completely integrated, you will walk out of the lobby, down a 150-foot corridor into the exhibit space … And I think when we're done, we will have this wonderful nonurban environment ... people will be able to enjoy when they come for conventions and meeting space.”