Sports

The Stadium That Becomes a Pitch

Sixteen venues across three countries had to become World Cup stadiums without a single new one being built. The 2026 conversions are a master class in designing for a building's second job.

By Maren Iso5 min read
June 29, 2026

Maren Iso, Principal, Preconstruction · Edited by Jules Whitfield

A soccer stadium scoreboard reading 90:00 at full time under stadium lights

The 2026 World Cup ran 104 matches across 16 venues in the United States, Mexico, and Canada, and here is the detail that should interest anyone who manages buildings: not one of those venues was newly built for it. Every host stadium was an existing arena — mostly NFL stadiums — retrofitted to become something it was not designed to be, then handed back afterward.

That is a construction problem disguised as a sports story, and it is a genuinely hard one. A football field and a FIFA pitch are not the same dimensions. Eight of the sixteen venues had permanent artificial turf that had to be replaced with grass. MetLife Stadium pulled 1,740 seats to widen the field. Houston installed roughly 81,000 square feet of natural grass — indoors.

The cost of a temporary transformation

None of this is cheap, and the spend tells you where the difficulty lives. Lumen Field ran about 19.4 million dollars covering field infrastructure, security, and transportation. Levi's Stadium had just wrapped a 200-million-dollar renovation, new video boards and sound among it. Broadcast infrastructure — fiber backbone, production compounds, commentary booths — was rebuilt at every venue to hit FIFA's global standard.

The hardest builds are not the ones that stand forever. They are the ones that have to be undone.
Maren Iso

What makes a temporary conversion harder than new construction is that it carries two constraints at once. It has to perform flawlessly for the event, and it has to be reversible afterward, because the building has a day job to return to. You are not just building — you are building something engineered to come apart cleanly. That is a different discipline, and it rewards planning over improvisation.

There is a lesson in it for the far less glamorous work most of us do: phased occupancy in an operating hospital, a school renovated over a summer, a courthouse that cannot close. The World Cup venues are the extreme case of a problem we solve constantly — how to change a building that is not allowed to stop being itself. The teams that pulled it off did it the same way we do: by deciding, early, exactly how the temporary state comes apart before they ever built it.

Written by Maren Iso, Principal, Preconstruction. Edited by Jules Whitfield.