FOR IMMEDIATE RELEASE
OPEN Impact Real Estate Represents Century-Old Nonprofit in Strategic Move to Mission-Aligned Morningside Heights Campus
The Interchurch Center Celebrates 65 Years in Morningside Heights
(NEW YORK (July 15, 2026) – OPEN Impact Real Estate (OPEN), the largest woman-owned commercial real estate services company specializing in nonprofit real estate, is pleased to announce that Graham Windham, one of New York City’s oldest and most respected nonprofit organizations serving children and families, has signed a five-year lease for 9,833 square feet at the historic Interchurch Center, located at 475 Riverside Dr. in Morningside Heights.
Graham Windham is relocating from 423 West 127th St. to a newly renovated office suite on the 14th floor of The Interchurch Center, a landmark nonprofit-centered office space and community center that exclusively houses ecumenical, educational and philanthropic organizations. The move reflects the organization’s desire for a modern, amenity-rich workplace that aligns with its mission while supporting continued growth and collaboration.
OPEN Impact Real Estate’s Stephen Powers, Alexander Smith and Isabella Marcellino represented Graham Windham in the transaction. The landlord, The Interchurch Center, was represented in-house. The asking rent was $29 per square foot, offering Graham Windham an affordable, high-quality workplace that supports the organization’s continued focus on responsible stewardship of its resources and careful management of overhead and operating costs. The transaction reflects OPEN’s longstanding relationships with both organizations, having advised Graham Windham on its real estate needs for more than a decade while partnering with The Interchurch Center over many years to help attract and retain mission-driven nonprofit tenants. Over the years, numerous OPEN clients have established offices at The Interchurch Center, benefiting from its collaborative community, shared amenities and programming designed specifically for nonprofit organizations.
The new space features floor-to-ceiling glass offices and conference rooms, abundant natural light and sweeping views of the Hudson River, Columbia University and the Manhattan skyline. The Class A building and community-driven space also offers several conference centers, a cafeteria, library, art gallery and soon-to-be-completed wellness center designed to support mission-driven organizations. The space is essentially move-in ready, allowing Graham Windham to transition into its new headquarters with minimal modifications before taking occupancy in August.
Finding the right office for a nonprofit is about much more than square footage,” said Alexander Smith, Senior Vice President at OPEN Impact Real Estate. “Graham Windham wanted a space that reflected its mission while providing employees with a modern, collaborative workplace and access to a community of like-minded organizations. The Interchurch Center checked every box, creating an environment where the organization can continue serving New York City’s children and families while becoming part of one of the city’s most established communities of mission-driven nonprofits.”
Originally opening its doors in 1960, The Interchurch Center is home to over 70 nonprofit, faith-based and social impact organizations including Bank Street College of Education, Columbia University and Children’s Health Fund, creating a unique ecosystem of mission-driven institutions. Founded with a mission to foster interreligious engagement and promote social good, The Interchurch Center remains rooted in traditions of hospitality, community care, and meaningful exchange. The relocation positions Graham Windham within a community dedicated to education, philanthropy and social impact.
IMAGES: To view and download high-resolution images of The Interchurch Center, please click this link (credit: The Interchurch Center): https://www.dropbox.com/scl/fi/d53dw4iz3sy2z4e2yik1a/The-Interchurch-Center.jpeg?rlkey=8l72mf2tja8koc1k839zwtwpp&st=f9ncck2k&dl=0
About Open Impact Real Estate:
OPEN Impact Real Estate (OPEN) is a certified woman-owned business that delivers a comprehensive range of commercial real estate brokerage and advisory services in partnership with their national affiliate JLL. As a woman-owned enterprise, OPEN is committed to delivering a comprehensive suite of services tailored to empower socially conscious, mission-driven organizations. Renowned as the foremost expert in leveraging physical spaces as a catalyst for change and advancement, OPEN services a host of corporate clients and boasts the largest nonprofit practice in New York City, extending its impact across the United States.
In 2024, OPEN formed a strategic alliance with leading commercial real estate and investment management company JLL. OPEN Impact serves as JLL’s exclusive WBE partner in the Tri-State region and is a national affiliate of the global real estate firm. For more information, please visit www.openregroup.com.
About The Interchurch Center:
For over 65 years, The Interchurch Center (TIC) has served as one of New York City’s most unique gathering places, a historic institution where mission-driven organizations, community members, and creatives come together under one roof. Long considered one of the city’s best-kept secrets, TIC has evolved beyond a traditional office environment into NYC’s Hub for Nonprofit Collaboration and Impact.
Founded with a mission to foster interreligious engagement and promote social good, The Interchurch Center remains rooted in traditions of hospitality, community care, and meaningful exchange. Through cultural events, networking opportunities, tenant engagement, and shared community resources (including dynamic programming, a public library, and support for local artists), TIC creates space for ideas to grow, relationships to be built, communities to thrive, and changes to be made.
Now home to over 70 nonprofit, faith-based, and social impact organizations such as Columbia University, Alcoholics Anonymous, the World Science Festival, and more, The Interchurch Center continues to welcome a new generation of changemakers—because NYC’s best-kept secret is finally out!
Press Contacts:
OPEN Impact Real Estate
Greg McGunagle
Transmitter PR
gmcgunagle@transmitterpr.com
212.967.1449
Interchurch Center
Jessica A. Poulin
Woke Media
jessica@wokemediabk.com
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