A major piece of the puzzle of downtown Allentown's redevelopment is one step closer to being open for business.

The National Penn logo is being put up on Two City Center on Hamilton Street across from the PPL Center.

Two City Center will house the bank's headquarters as well as retail and restaurant space.

It's part of Allentown's Neighborhood Improvement Zone, or NIZ and will be the first new construction to open.

National Penn employees will being moving into the building on Monday.