Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
Streetsblog

Pop-Up Urbanism: The Origins of a Movement

Pop-up urbanism, or tactical urbanism as it's sometimes called, seems like an idea that belongs to our era.

false

Streets repurposed as public markets. Parking spaces as parks. Vacant storefronts as temporary art galleries. It's never been hotter.

But this movement actually has 40 years of history, writes Aurash Khawarzad at Network blog Pattern Cities. Its origins can be traced to San Francisco and a woman whose name has been nearly forgotten. Khawarzad writes:

Most urbanists haven’t heard of Bonnie Ora Sherk. Most people capitalizing off of the resurgence of pop-up architecture probably haven’t heard of her either, but she is actually one of the pioneers of “tactical urbanism,” “spontaneous interventions,” and the other forms of unsanctioned public space activity that are extremely important in today’s discourse over how public space is used and allocated.

Her interventions, titled “Portable Architecture,” began in 1970 by essentially doing what’s now known as Park(ing) Day around strategic points in San Francisco. This incredibly prescient intervention foreshadowed a theme in urbanism that would gain widespread support 30 years later: the culture of DIY, combined with place-making in city streets.

Ms. Ora Sherk’s original Portable Architecture installations revealed the potential for artists, and public art, to inspire improvements to infrastructure, but they also revealed the weakness in not skillfully connecting public art projects with how public space plans are developed and implemented.

Elsewhere on the Network today: This Big City reports on how cities are preparing to cope with the effects of climate change. Orphan Road outlines how to build coalitions for dense, transit-oriented developments. And World Streets says that bicycling organizations that overlook "invisible cyclists" risk losing political support.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

INTERVIEW: MTA Chair Janno Lieber Talks to Streetsblog to Mark Four Years at the Top

The MTA chairman talked with Streetsblog about his tenure, congestion pricing, bus stops, Babe Ruth and more.

January 21, 2026

OPINION: To Move Past the ‘Agony and Terror’ of the Adams Years, DOT Must Lean Into Research

Ex-Mayor Adams sandbagged DOT's capacity to explain why it pursue street redesigns in the first place, and the ability to inform New Yorkers, in clear and honest terms.

January 21, 2026

Wednesday’s Headlines: Talk is Cheap Edition

We're hawking half-priced tickets to a New York Focus transportation event. Plus other news.

January 21, 2026

F150 Driver Kills Cyclist in Queens

The carnage continues in the World's Borough.

January 20, 2026

Central Park Changes Have Eased Crossings for Pedestrians, New Data Shows

Pedestrians are waiting less time to cross the bustling six-mile loop after the city shortened crossing distances and replaced "stop" lights with yellow "yield" signals.

January 20, 2026

Memo to Mamdani: Rescind Central Park’s New 15-MPH Bike Speed Limit

The lower speed limit misapplies state law and sets a troubling precedent for cycling in New York City.

January 20, 2026
See all posts