FAIRFAX, VA—The Fairfax County Board of Supervisors has given Macerich the green light to move forward with its final 1-million-square foot expansion at Tysons Corner Center. To date, the county has approved plans for 2.35-million square feet of mixed-use space at the giant retail center, with much of it already developed.

Tuesday's vote gives the REIT permission to build three new apartment buildings, a 12-story office building, an additional 133,047-square feet of retail and more than 30,000-square feet of park space.

A rendering of the site plan can be found here.

One of the apartment buildings, a 19-story development, will be across from LL Bean on what is now a surface parking lot. It will have 382 apartment and 69,000-square feet of ground floor retail, plus underground parking.

Across from the new apartment, the retail center's stores will be turned to face the street -- a larger trend being put in place at many retail centers that are trying to replicate a "town square" feel. These outward facing stores create a one-block-long retail street from Bloomingdale's to Nordstrom.

There will also be 30,000-square foot community green across from Bloomingdale's.

The landscape is also changing around Macy's, which faces International Drive. Three new buildings will be added here, including a 20-story apartment building and a five-story one, plus a 12-story office building.

When fully built out, the 78-acre property will hold six million square feet including the current 2.4 million square foot mall. Macerich has completed a number of buildings already, including the 22-story Tyson Tower office, the 300-room Hyatt Regency hotel, 30-story VITA apartment tower, and 1.5-acre plaza connecting the mall to Tysons Corner Metro station.

The VITA apartment tower, the final piece of approved activity, delivered this May. The 429-unit, 30-story luxury apartment tower, followed by one month the debut of the 18-story, 300-key Hyatt Regency hotel, which opened in April.

"As VITA opens, the final piece of our exceptional mixed - use destination is now in place," said Ed Coppola, president of Macerich in a prepared statement at the time. That, of course, was before this latest phase was approved.