The closest physical address is 111 Lawrence Street, Brooklyn (Khim’s Market). From there you will see Hale & Hearty across Metrotech Roadway to the north. The NYU Poly entrance is just past Hale & Hearty.
Once you reach the Metrotech area
Enter 2 Metrotech Center on the west side of the building using the NYU Polytechnic School of Engineering entrance (between Five Guys and Hale and Hearty, across from Chipotle)
Check in with security, take the elevators up to the 9th Floor
Head towards the doors leading to NYU Poly and NYU Wireless. Use the phone to the right of the doors to dial GovLab’s extension (numbers are listed near the phone) to have someone let you in. Once through the doors turn left and follow the signs to GovLab.