Most Expensive Stadiums Ever Built, and the Catch

SoFi Stadium cost about $5.5 billion, which makes it the most expensive sports venue ever built by a margin of more than two to one.

Its successor act is an Olympic Games that will build nothing: LA 2028 uses more than 40 existing venues, covered in our guide to LA 2028 Olympic venues.

Everything below it comes with a caveat that most rankings do not state. These figures are inflation-adjusted and converted to US dollars, which is why Wembley appears here at roughly $2.4 billion despite a construction cost of £789 million in 2007. Both numbers are correct.

The most expensive stadiums ever built

Rank	Stadium	City	Cost (adjusted USD)	Opened
1	SoFi Stadium	Inglewood, USA	~$5.5 bn	2020
2	Allegiant Stadium	Las Vegas, USA	~$2.483 bn	2020
3	Wembley Stadium	London, England	~$2.428 bn	2007
4	MetLife Stadium	East Rutherford, USA	~$2.301 bn	2010
5	Tottenham Hotspur Stadium	London, England	~$1.3 bn	2019

SoFi is the outlier, not the trend. It cost more than the second and third entries combined. Its roof canopy, twin video board and the surrounding entertainment district account for much of the difference, and it is the venue hosting Super Bowl LXI in February 2027 as well as swimming at the LA 2028 Olympics.

Money and time track each other here: SoFi took nearly four years to build, while a phased rebuild around a working ground runs to a decade — set out in our guide to how long it takes to build a stadium.

Note also how few of these are old. Four of the five opened since 2007, and three since 2019.

Why the figures move so much between sources

Three variables, and a comparison that does not state all three is not a comparison.

1. Nominal or inflation-adjusted. Wembley’s £789 million in 2007 money is not the same quantity as £789 million today. Adjusted rankings restate everything in current terms, which pushes older stadiums up the table relative to their headline cost.

2. Currency, and the date of conversion. A euro or sterling figure converted to dollars depends entirely on the exchange rate used. Convert Wembley’s cost at a 2007 rate or a 2026 rate and you get materially different dollar figures for the same building.

3. Construction only, or total project. Wembley’s £789 million is construction. The roughly £1 billion figure includes redevelopment of local transport infrastructure and the cost of financing. Land acquisition is sometimes in and sometimes out. Our guide to Wembley Stadium capacity sets out both figures and why the gap exists.

When you next see stadium costs compared, the useful question is not which is bigger but what is inside each number.

Renovations are a separate category

Two of the largest sums currently being spent on stadiums are not new builds at all, and folding them into a new-build ranking would be misleading.

• Santiago Bernabéu, Madrid — roughly €1.76 billion. A four-year renovation completed in late 2024. Real Madrid has still never officially confirmed the resulting capacity.
• Camp Nou, Barcelona — around €1.45 billion. The Espai Barça rebuild, financed through a package of roughly €1.5 billion involving Goldman Sachs and about 20 investors, with reported cost overruns in July 2026 and members asked to approve additional financing. See Camp Nou capacity.

Both are enormous. Neither produced a new stadium. Camp Nou’s rebuild alone costs more than Wembley’s entire original construction.

The proposed stadium that would top the list

Manchester United’s proposed 100,000-seat ground, about 350 metres from Old Trafford on 25 acres secured in June 2026, carries an estimated cost of around £2 billion.

That would place it second on this table on a nominal basis and possibly higher once built. It is excluded because it does not exist — the same rule that keeps proposed venues out of our capacity rankings. Our guide to Old Trafford capacity covers the proposal in full.

Why the NFL dominates

Most of the world’s most expensive venues are American football stadiums, and the reason is structural rather than architectural.

NFL stadiums are typically privately financed at very large scale, built for a 16-to-20-date home season, and designed to earn their return from premium hospitality, naming rights and non-sporting events rather than from ticket volume alone. That economic model supports spending that a European club playing 25-plus home fixtures a year to a mostly general-admission crowd cannot easily justify.

It also explains why capacity and cost barely correlate. SoFi holds about 70,240 in standard configuration — fewer than Wembley, Twickenham or Croke Park — while costing more than twice as much as any of them. Michigan Stadium holds over 107,000 and does not appear anywhere near this list. Our ranking of the biggest stadiums in the world is close to a different set of buildings entirely.

How we checked these numbers

The ranking and the adjusted dollar figures are from StadiumDB’s most-expensive list, Bleacher Report and Construction Dive’s ranking of thirty venues, with NFL-specific figures from Front Office Sports. Wembley’s nominal £789 million construction cost and roughly £1 billion total project cost are from Britannica and the stadium’s own history pages. The Manchester United estimate is from ESPN’s reporting of the announcement.

The table is on a single basis — inflation-adjusted US dollars — and says so. Nominal local-currency figures are given in the text where we have them, because the two are routinely quoted interchangeably and should not be. Renovation costs are kept separate from new-build costs for the same reason.

Review class: event-driven. Recheck on any new stadium completion above roughly $1.5 billion, when Camp Nou’s final cost is settled, and if the Manchester United proposal proceeds.