There's finally some visual clarity on what the 30-story luxury apartment tower proposed by Mortenson Development for downtown Minneapolis will look like.

Called 4Marq, the tower will be located at 400 Marquette Ave. That's near Nic on Fifth, a $100 million 26-story luxury at the corner of Fifth Street and Nicollet Mall, being built by Minnetonka-based developer Opus. And, it's close to Xcel Energy's proposed headquarters expansion on the same block.

Few details have been released about the Mortenson project, however.

Janet Moore covers commercial real estate for the Star Tribune.