The owner of the Parkington Shopping Center in Arlington has submitted revised plans for the proposed $100 million renovation of the 32-year-old center that include more retail and office space, a one-acre park, a third department store and a movie theater.

Francis A. McDermott, a Fairfax attorney for the St. Louis-based May Centers Inc., which owns the 14-acre center and whose parent company owns the Hecht Co. store there, said plans were changed "because from a marketing standpoint and a tenants' standpoint, this is a much more viable plan . . . . And it will help us attract a third department store."

Under the revised plan, the retail mall would be three stories instead of one. It would have a movie theater and food court in an underground level beneath the mall. Another department store would be added to the two proposed. The third department store and a planned nine-story office building above it would be moved from the original location at N. Randolph Street and N. Glebe Road, closer to Carlin Springs Road and N. Glebe Road. The shift will allow the developer to extend the shopping mall to the third department store so all the retail space will be connected. The revisions add another 100,000 square feet to bring the project up to nearly 1.6 million square feet. The developer is offering to donate a park on the site to the county.

No tenants have been signed for the second and third department stores to accompany a renovated Hecht's, nor have any been found yet for the 12-story "point" office building or two nine-story office buildings to be built atop a three-level retail mall, McDermott said. They are not expected to be completed until after the shopping mall is built and opened in the fall of 1985, he said.

The Arlington County Board is scheduled to vote on the revamped plans and an accompanying rezoning request at its Saturday meeting.

The once-vibrant center, to be renamed Ballston Common, is located at the intersection of Wilson Boulevard and N. Glebe Road and is just a few blocks from the Ballston Metro station in an area undergoing massive redevelopment and revitalization.

The County Board is also expected to vote Saturday on the first phase of a $250 million redevelopment of the Shirlington Shopping Center off I-395 in South Arlington. The first phase includes 370,000 square feet of renovated retail space along S. 28th Street and a new five-story office building at the corner of S. 28th Street and S. Quincy Street.