The Fairfax County Board of Supervisors signed off on another massive redevelopment project in Tysons Corner on Nov. 27, clearing the way for high-rise office and residential buildings near the future Tysons Central 123 Metro station.

Portions of the development, known as Arbor Row, could begin construction as soon as next year, project representative John McGranahan said.

“You’re going to start seeing Tysons transform with the approval of this application,” he said.

The project, planned by Cityline Partners, encompasses about 20 acres that now houses some of the oldest office buildings in Tysons Corner. Arbor Row includes 2.6 million square feet of new apartments, offices, retail space and a hotel.

Although the application spurred a philosophical debate among board members about the amount of developer contributions required in Tysons, the project itself was resoundingly praised and won unanimous approval from the board. No community members spoke at the public hearing on the proposal.

“It’s going to be a phenomenal addition to Tysons,” Supervisor John C. Cook (R-Braddock) said.

One of the new buildings will be the headquarters for the Association for Manufacturing Technology, a 200,000-square-foot, 10-story office building with a distinctive architectural design.

There will be three residential buildings; the tallest will be 20 to 27 stories, and the others will be 22 and six stories. The plans also call for three office buildings with retail space on the ground floor that are 13 and 17 stories tall, as well as a hotel.

Because the site features somewhat uneven topography and a steep hill, developers plan to build parking garages into the hill and use the top floors of the garages for amenities such as plazas and public gathering spaces.

Cityline also is granting eight acres to Fairfax County that initially will be developed with two artificial turf athletic fields. Ultimately, one of the field spaces could be designated for a new school building.

The developer also is providing millions in cash and in-kind contributions for constructing the Tysons street grid and other transportation improvements around Tysons Corner. Other developer contributions include designating 20 percent of the new apartments as rent-controlled “workforce housing,” as well as a number of environmental protections through the buildings’ design and via stream restoration contributions.

This wide-ranging mix of developer contributions is what is called for in the comprehensive plan for Tysons Corner that supervisors adopted in 2010 as they prepared for the advent of Metrorail service to Tysons. Service on the Silver Line is anticipated to begin at the end of 2013.

“This shows that the vision we crafted for Tysons . . . is achievable,” Supervisor John W. Foust (D-Dranesville) said.