Open Space Index

In 2010, NY4P developed the Open Space Index (OSI) methodology, which is based on a set of 15 NYC-specific benchmarks against which we measure open space maintenance, access, variety and environmental sustainability, generating data on the study neighborhood’s strengths and needs. 

Brownsville Open Space Index, 2018

The Brownsville Open Space Index found that this neighborhood failed 10 of the 14 open space benchmarks. Benchmarks include total amount of open space, access, tree canopy and overall maintenance. Recommendations include increased programming in parks, especially for young people; increased NYPD engagement with community-based agencies and increasing youth access to open spaces; pair NYCHA infill development with improvements to NYCHA open spaces; increase funding for maintenance and programming, and more.

Southern Boulevard Open Space Index, 2018​

The Southern Boulevard Open Space Index  found that the neighborhood failed eight of the 14 open space benchmarks, rising to 11 out of 14 when Crotona Park, which many residents have difficulty accessing, is excluded. Benchmarks include total amount of open space, access, tree canopy and overall maintenance. As one of the areas being studied for a possible rezoning, residents and advocates are also concerned about what impact increased density will have on their open spaces. Recommendations include supporting the community's visioning for the Bruckner Sheridan de-commissioning; expanding the Community Parks Initiative to capitally renew neglected pars; increased access to local waterfront parks; increased funding for maintenance, and more.

Mott Haven Open Space Index, 2014

The Mott Haven Open Space Index found that this South Bronx neighborhood failed 11 of 15 benchmarks in this comprehensive assessment of both traditional Parks Department properties and New York City Housing Authority open spaces. The report calls for capital investment in parks and playgrounds, more welcoming and accessible Housing Authority spaces, and better access to the waterfront and Randall’s Island Park, among other improvements. Mott Haven is located within the poorest community board district in the city and poorest congressional district in the country. Funding for the report was provided by the Charles H. Revson Foundation, the Local Initiatives Support Corporation, and New York City Council Speaker Melissa Mark-Viverito.

Manhattan's East Side Open Space Index, 2013

Manhattan's East Side Open Space: New York City Council Districts 4 and 5 fall far short of nearly every one of the 15 New York City-specific benchmarks that comprise NY4P’s Open Space Index (OSI) – even when Central Park and Privately Owned Public Spaces are taken into account. In addition to the findings, our fourth OSI survey offers preliminary recommendations for East Side open-space improvements, including reimagining underutilized public spaces, pairing new development with open space improvements, and realizing the full potential of the East River waterfront. The report is based on hundreds of hours of on-the-ground surveying and analysis of more than 350 blocks of Manhattan, including Roosevelt Island. New York City Council Members Daniel R. Garodnick (District 4) and Jessica A. Lappin (District 5) provided funding for the study after learning that their districts rank near the bottom citywide for open space per capita.

East Harlem Open Space Index, 2012

The East Harlem Open Space Index is based on hundreds of hours of on-the-ground surveying and data analysis, including a field survey of more than 250 blocks of East Harlem. We present current open space measures for the neighborhood, and compare those to citywide standards, finding that East Harlem is rich in play areas, courts, fields, and community gardens, but falls short of standards for the total amount of open space per resident. The report offers preliminary recommendations to guide the future of the area’s open spaces, including maximizing public use of existing open space – the more than 100 acres of inaccessible New York Housing Authority lawns, for example – and better connecting people to parks. This is the first in a series of joint research reports conducted by NY4P and Mount Sinai School of Medicine Children’s Environmental Health Center. The report was made possible in part through funding from the Aetna Foundation.

The Open Space Index Report, Including a Pilot Assessment of the Lower East Side, Manhattan, 2010

The Open Space Index Report establishes the 15 Index standards and provides a detailed methodology for assessing open space in New York City neighborhoods. We piloted the OSI methodology on the Lower East Side of Manhattan, which was chosen because of its variety of open spaces, rich residential diversity and vibrant history of park and garden advocacy.   The pilot found that the Lower East Side performs very well with regard to community gardens, acres of active recreation, and access to parks. It also found, however, that the neighborhood has an urban tree canopy cover of only 14%, far below the US Forest Service’s 44% recommendation for that community. And the assessment found that the Lower East Side parks have very little green, natural ground surfacing within its parks.

Jackson Heights Open Space Index, 2010

The Jackson Heights Open Space Index  assessment found that the neighborhood is severely lacking in open space compared to citywide standards. Local groups and elected officials have since used the findings, along with our 2009 City Council District 25 Profile, to advocate for park and open space improvements in the district.


Featured Data and Research
East Harlem Open Space Index
East Harlem Open Space Index
East Harlem, Manhattan
Mott Haven Open Space Index
Mott Haven Open Space Index
Mott Haven, The Bronx
East Side Open Space Index
East Side Open Space Index
City Council Districts 4 & 5
The Open Space Index - Lower East Side
The Open Space Index - Lower East Side
Including a pilot assessment of the Lower East Side
Jackson Heights Open Space Index
Jackson Heights, Queens
Brownsville Open Space Index
Brownsville Open Space Index
Brownsville, Brooklyn
Southern Boulevard Open Space Index
Southern Boulevard Open Space Index
Southern Boulevard, Bronx