Unlock the City

Forget the Mayor, Open House New York holds the keys to the city.

Crains New York Business
Open House New York promotes unparalleled access to the city—to the places, people, projects, systems, and ideas that define New York and its future.

From the signature Open House New York Weekend festival to design-driven public programs and the dynamic Urban Systems infrastructure series, join us to take an inside look at how the city works.

Open City Benefit

Graphic by Alfalfa Studio

The Open City Benefit is a celebration of the power of place and new possibilities for our city.

On May 18, the Open City Benefit brought together hundreds of New Yorkers for a festive evening at Powerhouse Arts—a 117-year-old power plant that has been transformed into a contemporary art center and fabrication space on the Gowanus Canal in Brooklyn.

Thank you to our community of supporters for making the 2023 Open City Benefit possible and supporting our work to promote broad, unparalleled access to the city.

Photos by Jenna Bascom Photography

Upcoming Events

NYC Tours

Photo: Albert Vecerka / ESTO. Powerhouse Workshop 22-03, Location: Brooklyn NY, Architect: Herzog & De Meuron Architects, Client: Gemini Arts Initiative
Open House New York at Powerhouse Arts

May 21 | 11:00am -3:00pm

Powerhouse Arts

322 3rd Avenue, Brooklyn

Join OHNY for a first look at Powerhouse Arts, a former power plant turned contemporary art center and fabrication space.

From the Archives

OHNY Stacks: A book talk series exploring urban life

Cover of Station to Station, depicting a woman and man sitting inside a subway car photographed from outside the car. The woman has a melancholy expression.
Station to Station

Growing Up Underground

A Block in Time


Our Team

Meet Building Capital Fellow Oscar Perry Abello

Oscar Perry Abello joined OHNY as the Building Capital Fellow in February 2023. Oscar is a journalist covering alternative economic models and policies in cities across the country.

Our Leadership

Open House New York Elects New Officers

Sara Lopergolo, Partner at Selldorf Architects, was recently elected president of OHNY’s Board of Directors and serves alongside vice president Saundra Thomas (Principal, SPT Consults); secretary Adam Rolston (Partner, INC Architecture & Design); and treasurer Amy Gilfenbaum (Former Managing Director of Operational Risk, Neuberger Berman).

Celebrating OHNY Weekend Volunteers

Mary Farrell

20-Year OHNY Weekend Volunteer

Michael Roque

15-Year OHNY Weekend Volunteer

Ann Reilly

10-Year OHNY Weekend Volunteer

Join Us


Love New York? So do we.

The Morgan Library & Museum, Credit: Michael Lee

From program discounts to members-only events like our popular Summer Social, Open House New York helps you demystify the city and take part in a community of curious New Yorkers. Fully tax-deductible memberships start at $60 (Individual) or $110 (Dual).

Gift Membership

Open doors make great gifts

Central Park Bandshell, Credit: Ben Helmer

Looking for the perfect gift for the urbanist in your life? Give them the gift of an open city with an OHNY Membership!

Graphic by Alfalfa Studio

OHNY Weekend: A public celebration of New York and the “power of place”

I applaud OHNY’s leadership, staff, volunteers, and supporters for 20 wonderful years of celebrating the remarkable diversity, feats of engineering, and visionary people that define New York City.

Mayor Eric Adams

Three epic days of exploration, access, and discovery

Rooftop gardens. Design studios. Historic houses. Infrastructure tours. And more!

In 2022, the 20th annual OHNY Weekend welcomed over 20,000 visitors into 300 places across the five boroughs, spanning 120 neighborhoods and nearly 100 zip codes. We introduced a brand new lottery system for ticketed locations and filled over 8,000 slots across the three day festival. And we cannot wait to work with our community of partners, volunteers, supporters, and participants for an even bigger and better festival on October 20-22, 2023.

Want the latest updates? Subscribe to our mailing list.

I’m an Open House New Yorker because…

“I want to sneak into every building.”

– Marc N., Member

“I want to be involved with and included in the places in my city that go unnoticed or are inaccessible.”

– Diana Z., Member

“Open House New York gives you a key to places you would never discover on your own.”

– Dan H., Member
Urban Systems

Radical Knowledge

Library interior with shelves

How do libraries serve as community catalysts?

Explore the profound transformations underway for public libraries in New York and across the nation in the latest installment of Urban Systems, a themed series investigating the forces that shape the city.

Building Capital

From municipal bonds to affordable housing tax credits, highway construction to park development, the flow of financial capital underpins the design and function of the built environment, shaping who has access to opportunity—and who does not.

Launching in spring 2023, Building Capital: The Value of Place is a multiyear investigation into how different forms of capital—financial, cultural, community—determine quality of place and quality of life in New York.

Global Network

Open House Worldwide

Visitors in London explore and modern space
Visitors in Lagos exit a historic building

From Athens to Zurich, the Open House Worldwide network brings together 40+ cities to promote architecture, design, and urbanism. In 2019, almost 1 million people participated in Open House events with nearly 2 million visits to buildings enabled by more than 18,000 volunteers. Taken together, Open House Worldwide is the largest celebration of the urban landscape in the world. Learn more.

Kingsland Wildflower Rooftop, Credit: Ben Helmer
Get Involved


The enthusiasm and support of New Yorkers like you makes our programs possible.

Become an OHNY Volunteer to join a community of enthusiastic and curious New Yorkers!