A year and a half after construction started, the first phase of Plano’s $3 billion Legacy West development is ready to debut.

Developer Columbus Realty – one of the original partners in the 250-acre project at the Dallas North Tollway and State Highway 121 – has quietly opened the first phase of more than 1,000 apartments planned in the mixed-use development.

Called the Grand at Legacy West, the 4-story apartment block along Communications Drive is connected to the 300,000-square-foot retail and restaurant center that’s at the heart of the Legacy West Urban Village.

Tenants have already leased about 50 of the first 621 apartments that are opening in the development.

The first residents will move into the rental community in about three weeks, says Denise Zinser, regional marketing director with Lincoln Property Co. which is leasing the apartments.

The on-site leasing center and model apartments are giving tours to potential residents.

“We will turn more units opening in September and October,” Zinser said.

The one-bedroom units have just under 700 square feet and a 2-bedroom apartment averages 1,051 square feet. Rents start at $1,065 for a one bedroom.

There are also smaller efficiency units with 324 square feet that rent for $850.

Lincoln’s Jordyn Trezza said that the 2-bedroom units have gotten the most attention so far.

The Grand at Legacy West a dog park, swimming pools with cabanas and a fitness center.

The first of the shops and restaurants in Legacy West will start opening at the end of the year.Construction started on the project in February 2015.

Legacy West is a project of Karahan Cos., Columbus Realty and KDC.

It’s home to new office campuses for Toyota, FedEx Office, Liberty Mutual Insurance and JPMorgan Chase.

Almost 20,000 people will work in the area in about two years.