The New York City Landmarks Preservation Commission lists only 110 interiors worthy of preservation. This article in Metropolis says the challenge is the "temporal nature of interior spaces."
Exteriors may stay the same, but the way we use rooms changes all the time:
"Real estate agents call this phenomenon 'churn,' and it's been around for a lot longer than historic preservation. Still, a landmark interior is required to meet the same stringent criteria as a landmark building. It must be 30 years old and operate in the public realm. To survive that long intact, it has to be lucky enough to have a sympathetic owner-or more likely, a string of sympathetic owners who have understood and appreciated the space. One false step on the march to 30 can leave it vulnerable to alterations and eventual extinction."
FULL STORY: Looking Inward

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Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

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Creativity has long been key to great urban design. What if we see AI as our new creative partner?

Portland Raises Parking Fees to Pay for Street Maintenance
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Spokane Mayor Introduces Housing Reforms Package
Mayor Lisa Brown’s proposals include deferring or waiving some development fees to encourage more affordable housing development.

Houston Mayor Kills Another Bike Lane
The mayor rejected a proposed bike lane in the Montrose district in keeping with his pledge to maintain car lanes.
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Gallatin County Department of Planning & Community Development
Heyer Gruel & Associates PA
JM Goldson LLC
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Jefferson Parish Government
Camden Redevelopment Agency
City of Claremont