From housing in the former Salt Lake Tribune building to a new home for the Salt Lake Art Center, the Downtown Alliance is circulating maps and artistic renderings of its vision of a "cultural district" in downtown Salt Lake City.

The plans hinge on the announcement of the site of a Broadway-style theater, still a month away.

The Downtown Alliance, which is part of the Salt Lake Chamber, in recent weeks has presented its plans for Blocks 69 and 70, which run from West Temple to State Street and 100 South and 200 South. The plans are the result of a yearlong study by Prescott Muir Architects.

The cultural district could generate $600 million in new development, Downtown Alliance executive director Bob Farrington said.

Among the alliance's suggested locations for the Broadway-style theater are the historic Utah Theater, at 148 S. Main; the headquarters of the former Newspaper Agency Corp., 157 S. Regent St.; a parking lot across from the Rose Wagner Center at 138 W. 300 South; and several downtown parcels owned by Earl Holding, owner of Sinclair Oil, Little America hotels and Idaho's Sun Valley resort.

There are "probably 12 different sites that we've been looking at," said Bill Becker, head of a committee that is studying potential theater sites.

Becker said he's spoken to all property owners, and most seem responsive.

"Ultimately, the responsibility to make the decision is going to be the city's responsibility," he said. "The committee's going to make a recommendation."

Becker expects an announcement sometime in May.

If the Utah Theater is chosen as the site for the Broadway-style theater, building owner Rick Howa said he would sell the building "to the city, and they would put it out for bid like they normally do for city and county projects."

If another site is chosen for the Broadway-style theater, Howa will consider office, retail and hotel options for the building.

"A Broadway house downtown Salt Lake City brings a lot of economic development, more hotels, more tourists, transportation, restaurants," Howa said.

The Deseret News has owned the Newspaper Agency Corp. building since the end of 2007, during a property and cash swap with the Salt Lake Tribune, News publisher Jim Wall said. The two newspapers have joint advertising, printing and distribution through the NAC, now called MediaOne and located in West Valley City.

If the NAC property doesn't become a Broadway-style theater, the Downtown Alliance is eyeing the property for a smaller blackbox theater, said Wall, a member of the Downtown Theater Action Group. Parking structures along Regent Street would be convenient for theatergoers.