How can NOI be calculated for this apartment rental investment property (information below) if operating expenses are unknown?

Total Development Cost $4,326,031

Gross Building Area (GBA) Bldg. Area (sqft.)

Residential 13,658

Parking 3,000

Total GBA 16,658

Total Auto Parking Spaces 16

Total Bike Storage Spaces 6

Apt Unit Type Number of Units Square Feet Vacant Units Average Rents

Studio (w/o parking) 3 615 1 $1,425

Studio 7 650 1 $1,630

Two Bedroom 6 930 0 $2,200

Three bedroom 1 1,683 0 $3,200

Total 17 2 $2,114