DETROIT (AP) — Plans are moving forward to use empty shipping containers to build a $3.4 million, 20-unit condominium complex in Detroit.

The Detroit Free Press reports a model unit and sales center will break ground in mid-December near the Wayne State University campus. First proposed in 2008, the project known as Exceptional Green Living on Rosa Parks stalled amid the national real estate market tumble.

Leslie Horn is CEO of Three Squared, the Detroit-based business that's working on the project. She says the sales center will help potential buyers understand shipping container architecture. The project would stack empty containers four high, cut in windows and doors, install plumbing, stairways and heating, and add amenities.

Horn says construction on the project is expected to begin in 2013.