Even in the pristine Hill Country growth is inevitable, but exactly how to grow this land is the source of a growing debate.

“This will be an entirely different community. This will be a mini-city - and we will lose all of the reasons that we came to live in Oak Hill,” says resident Carol Cespedes.

The Austin City Council continues its discussion Thursday on the development plan for the area surrounding the "Y" at Oak Hill. It's a massive tract of land -- 11,000 acres -- and not everyone can agree on how to build on it.

At a news conference Wednesday morning, some people who live in Oak Hill, along with several environmentalists, voiced concern over just how big and how dense some of the project could be.

“There's room in there to have both density as they said at major intersections, as long as the strip mall effect doesn't occur,” said Steve Beers, from Save Barton Springs.

“Even though you have zoning authority to build 8 downtowns or what ever it is - you can't comply with the land development code and do the same thing,” says Austin City Council Member Lee Leffingwell.

Leffingwell has says this is a difficult development in part because of the huge scale, but also because of the environmental concerns -- the area sits atop the Edwards Aquifer.

The neighborhood planning process began years ago, and Leffingwell wants that to keep moving forward.

“I think with all this time and effort that we need to go ahead and address the both the neighborhood plan and some of the zoning within that plan tomorrow night and get what we can do - we want to get that done,” says Leffingwell.

He also says some 90 percent of the development plan has been agreed upon by the city and neighborhood association. He hopes those parts will approved during Thursday's meeting so the other contested tracts of land can be debated further.