When we learn
from one another, we
strengthen our impact
and increase the success
of the communities
and places we care
about most.

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Do you work for a nonprofit that helps communities thrive using older or historic places? So do we.

The places around us are more than buildings — they’re living chapters of who we are. When we lose them, we lose the stories, culture, and connection they carry. We believe preservation isn’t about standing in the way of progress or making growth harder. We’ve built a strong, forward-moving national network to help you protect the places that matter while supporting vibrant change.

The National Preservation Partners Network (NPPN) is an independent, membership-based nonprofit dedicated to advancing the growth and effectiveness of the nonprofit historic preservation movement. We are a community of, and for, professionals who work at national, regional, statewide, and local nonprofit preservation organizations.


“NPPN knows what matters to us. They listen, they show up, and they bring people together who care about the same things we do. Their programs meet us where we are, shaped by what we actually need. The support is real, the resources are practical, and the connections we make here last. We know we are stronger with NPPN by our side.”


Upcoming Events

Preservation for All Roundtable:

Advancing LGBTQ+ Preservation Efforts and Historic Places for All

June 24, 1:00-2:30pm EST

Amanda Davis, Executive Director,
NYC LGBTQ Historic Sites Project

Ken Lustbader, Co-Director,
NYC LGBTQ Historic Sites Project and Founder, LGBTQ+ Heritage Alliance

Practical Preservation:

Working with AI and Emerging Technology in Preservation

July 29, 1:00-2:30pm ET

Huy Pham, Executive Director

Paul Kim, Past Futures Fellow

Asian & Pacific Islander Americans in Historic Preservation (APIAHiP)

Preservation for All Roundtable:

Preservation as Perpetuation: Centering Tribal Sovereignty in Preservation Decisions

August 11, 1:00-2:30pm ET

Ira L. Matt, Executive Director, Indigenous Diplomacy and Federal Relations,
National Association of Tribal Historic Preservation Officers (NATHPO)

Learn more about our webinars >


News from the Network

Save the Date for Fall 2026!

Save the date to join us in Washington, DC from September 24-26, 2026 as we gather for our annual Fall Convening and National Preservation Easements Summit sponsored by GBX.

NPPN FALL CONVENING

NATIONAL PRESERVATION EASEMENT SUMMIT

Stayed tuned for more details coming soon!


NPPN Joins Coalition of Nonprofit Organizations to File Amicus Curiae Brief in White House Ballroom Case

May 27, 2026

Eleven national and local nonprofit organizations devoted to architecture, landscape, historic preservation, planning, and National Parks stewardship have joined together in filing an amicus curiae (“friend of the court”) brief supporting the National Trust for Historic Preservation in its lawsuit over the proposed White House Ballroom. The litigation challenges the Trump Administration’s demolition of the White House East Wing and ongoing construction of a massive new ballroom structure on the historic White House grounds, a designated National Park.

A preliminary injunction granted to the National Trust by U.S. District Court Judge Richard Leon on March 31, 2026, has been stayed by the U.S. Court of Appeals for the District of Columbia Circuit pending an appeal by the Trump Administration. A hearing before a panel of the Circuit Court is scheduled for Friday, June 5, 2026.

In the brief, the amicus organizations make a number of points, including the following:

– Each president is but a temporary steward of the White House, and no president has the inherent right to destroy any portion of the White House complex or undertake a huge construction project such as this without obtaining express approval from the Congress. No such authority has been granted in this case.

– The historical record shows that virtually every other major White House project over the years has been carried out with approval and engagement by Congress. The Administration’s attempt to evade or usurp this authority should not be allowed to succeed.

– Despite the government’s recent assertions, the case is not about national security. It is simply about whether the President has complied with the law in his longstanding quest to construct a massive ballroom structure at the White House.

– The fact that private donors are supposedly paying for the project does not give the President any special authority to carry it out.

– The White House and its surrounding cultural landscape constitute a National Historic Landmark of highest significance to the nation, as well as a designated National Park. Not only has the Administration failed to secure basic congressional approval for this project, but it has also ignored planning and preservation standards and principles specifically established to ensure that changes to the White House and its grounds respect its cultural and historic values.

– Given the significant issues brought in this case, the balance of equities, and the likelihood that the National Trust will ultimately prevail on the merits, the Court of Appeals should reinstate the preliminary injunction and halt further construction of the ballroom project.

The 11 organizations participating as amici curiae include the following:

The American Institute of Architects

The American Society of Landscape Architects

The Association for Preservation Technology International

The Coalition to Protect America’s National Parks

The Committee of 100 on the Federal City

The Cultural Landscape Foundation

The DC Preservation League

The National Mall Coalition

The National Preservation Partners Network

The Olmsted Network

The Society of Architectural Historians

Read the full brief here.

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Our members are located all across the country.