The city's three-owned properties to be considered by respondents include 2469 Second Ave. in East Harlem; 455 First Ave. in Kips Bay and 44-36 44th Drive in Long Island City.

The 2469 Second Ave. site in East Harlem is currently a temporary parking lot and construction staging location for the New York Proton Center project. The 48,462-square-foot site owned by Housing Preservation and Development has development rights of up to 150,000 square feet subject to compliance with existing approvals. The site, which could be available this year, is part of the city's East 125^th Street development project that is projected to yield up to 1,000 residential units, 770,000 square feet of commercial space and 30,000 square feet of community facility-oriented space.

The Kips Bay site at 455 First Ave. currently features a 335,000-square-foot building (owned by the Department of Health and Mental Hygiene) that has substantial deferred maintenance, according to the city's RFEI. The building, which could accommodate another 88,500 square feet of commercial development, is a mix of office and wet lab space that is currently occupied by DOHMH's Public Health Laboratory, New York University and the Aaron Diamond AIDS Research Center.

In 2013 the city issued a RFP to evaluate rehabilitation and modernizing the property, but ultimately decided not to move forward with the program. The city is in the process of relocating the Public Health Laboratory, which is expected to be finished in 2023, at which point the property could be delivered vacant to an RFEII respondent. The site is located near a host of health care facility and just two blocks south of the approximately 700,000 square-foot Alexandria Center for the Life Sciences.

The property at 44-36 44th Drive in Long Island City features an existing 585,000-square-foot, six-story building that offers another possible 180,000 square feet of additional commercial development. The property is jointly owned by the Department of Education and the Department of Transportation. The earliest the property could be available is 2023 depending on a relocation of DOE operations there that currently include offices and a logistics hub.

Nearby the site are two city-owned waterfront parcels that are used as a DOE parking lot and a DOT facility. The city is eyeing those parcels for 1.5 million square feet of future development that would involve approximately 1,000 residential units, 400,000 square feet of commercial space, 100,000 square feet of light industrial space, 25,000 square feet of arts space and a 600-seat school.