Hundreds of construction workers are expected to descend on the first phase of the so-called Downtown North (DoNo) development on “Parcel C” along Main Street in the next month or so, RMS Cos. founder and CEO Randy Salvatore said in a recent interview. The first phase, projected to cost $56 million, includes a 270-unit apartment building with 11,000 square feet of retail and “flex” space and a rear 330-space parking garage. An estimated 18 months of construction means the apartments would come online in spring 2022, Salvatore said. Upon completion, the DoNo development is slated to house up to 1,000 apartments and additional retail and parking space on four different properties. The hope is that the new brick-and-mortar stores would be spurred, in part, by the Hartford Yard Goats’ $71-million ballpark, which typically draws about 400,000 fans a year. The team’s 2020 season was canceled due to the pandemic.