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An Idylwood apartment complex could more than double in size under a redevelopment proposal that would add nearly 600 homes, including at least 100 affordable units.

AvalonBay Communities submitted a rezoning application to Fairfax County in early August for the 17.2-acre Eaves Fairfax Towers property at 2251 Pimmit Drive. The company wants to replace the complex’s surface parking lot with a new apartment building and townhomes while retaining the existing 415-unit tower.

The property is currently zoned for about 20 homes per acre. AvalonBay is seeking a change to the Planned Residential Mixed-Use District, which generally permits at least 40 residential units per acre.

Plans call for an eight-story building with 478 apartments. The remaining housing would consist of either 115 side-by-side townhouses or a combination of 72 side-by-side townhouses and 68 stacked townhomes.

Either option would push the complex beyond 1,000 total homes. A new parking garage would be constructed elsewhere on the property to replace spaces lost to development.

AvalonBay said the project would introduce the corridor’s first new rental housing in decades while advancing Fairfax County’s goals for affordability, inclusivity and revitalization. At least 100 of the proposed homes would be set aside as affordable housing.

The plan also includes about 3.68 acres of urban parkland. Proposed amenities include a wooded trail across the southern portion of the site, two green gathering areas and several pocket parks.

Transportation provisions could include land reserved for the future Route 7 Bus Rapid Transit line, which is expected to connect Tysons with the Mark Center in Alexandria.

County staff have not yet accepted the rezoning application for review. Dates for public hearings and potential construction therefore remain unknown.

The project also requires a comprehensive plan amendment. First proposed in early 2025, the amendment moved forward for consideration in June, when the Fairfax County Board of Supervisors authorized a review of allowing up to 576 additional multifamily and attached single-family homes on the property.