A 47-year-old federal office building in Alexandria, Va., doesn’t sound very cool or interesting. Yet real estate investors and developers Perseus TDC and ELV Associates had the vision to convert a former General Services Administration building into a hip new location with loft-style apartments, an all-day food hall and a co-working space.

Named the Foundry at Carlyle, the mixed-use development at 2470 Mandeville Lane will be a 16-story building with 520 apartments. The 25,000 square feet of ground-floor retail space will include an indoor-outdoor food hall with space for 12 vendors, an outdoor gaming area and a 13,000-square-foot co-working space. The food hall and co-working space, created by Alexandria entrepreneur Scott Shaw, co-founder of ALX Community, will include a variety of dining options from local restaurateurs and communal lounge seating, plus a mezzanine space designed for private events and parties.

The Foundry at Carlyle is named for John Carlyle, a founding trustee of Alexandria, and for the surrounding Carlyle District neighborhood. It is an adaptive reuse project with reclaimed and raw textured wood, as well as steel detailing.

In addition to the food hall and co-working space, building amenities for residents will include a rooftop pool with a heated deck and entertaining area with an indoor-outdoor lounge and a fireplace; a three-story fitness facility; a two-level sports bar; a dog run and pet spa; concierge services; and a three-level parking garage.

The new mixed-use development is two blocks from the Eisenhower Metro station and within walking distance of shops and restaurants. Across the street from the development is a 22-screen movie theater and the site of a future Wegmans grocery store.

The apartments will have earth-tone interiors, exposed concrete ceilings and columns, mosaic tile floors, barn doors and large windows. The Foundry will have 50 studio units, 292 one-bedroom units and 178 two-bedroom units.

Preleasing for the apartments starts in October.

For more information, visit thefoundryatcarlyle.com.