Another 2004 artist's rendering shows the bustling streets of the proposed "mini-city," which also included a new MBTA Green Line station.

Under a 2001 agreement, the Boston and Maine Corp. and Cambridge North Point LLC formed a separate company to plan, permit, and build 2.2 million square feet of commercial and retail space, about 2,500 residential units, and garage space for 5,000 vehicles. But in 2007, the partners accused each other of breaching the contract.