For a more livable city from sidewalk to skyline
Advocacy
Supporting New Yorkers to become stronger advocates for their neighborhoods
2007–present
Collaborating on citywide solutions for equity, public realm access, racial justice, and resiliency
2020 - present
Supporting, celebrating, and preserving diverse cultural heritage throughout NYC
2023 - present
Enduring Culture, a multivocal historic preservation vision for New York City
News + Reports
Events + Tours
MAS is proud to fight alongside you for a city where growth is balanced and character endures.
Donate