Location: Natick, Mass.

Size: 550,000-sq.-ft. addition that will include 100 new luxury stores, a 144,000-sq.-ft. Nordstrom, a 100,000-sq.-ft. Nieman Marcus and 215 luxury condominiums attached to the property.

Developer: General Growth Properties

Completion: September 2007

Architect: Buyer, Blinder, Belle LLC

Landscape architect: Martha Schwartz, Inc.

Buzz: The expansion will connect with the renovated mall via a “Teardrop Court” topped with a 28,010-sq.-ft. skylight.