30-plus new sheds are landing in the capacity band your Brief is sizing

A competing date used to mean another touring act in your market the same week. Increasingly it means a building.

More than 30 outdoor venues of 5,000 capacity and up have been announced or started construction since 2023, at costs from $25 million to north of $400 million (Pollstar). That is a wave of new inventory in exactly the 5k–20k band where an independent promoter does most of their work — and it changes the booking math in mid-size metros before a single ticket goes on sale.

More than 30 new 5k–20k rooms are going up, most of them in mid-size metros

Start with the count, because the count is the story.

The builds are concentrated in secondary and tertiary markets, not the coasts. VENU Holding’s Sunset Amphitheater in McKinney, Texas is a 20,000-seat room approaching $400 million; its Broken Arrow, Oklahoma sibling, outside Tulsa, runs 12,500 seats at $300 million (Pollstar). Acrisure Amphitheater opened in Grand Rapids, Michigan this past May — 12,000 seats, $184 million, operated by Legends (Pollstar).

The developers are explicit that this is a suburban land play, not a coastal one. VENU’s J.W. Roth describes building where the hotels and the Top Golf follow the amphitheater in (Pollstar).

For a promoter, the relevant fact is geographic. New capacity is arriving fastest in the kind of market where, a cycle ago, you had two or three rooms to choose from and a competing-date calendar you could hold in your head.

The rooms are going up into a softening per-show market

Here is the tension worth naming: the building is supply-led, and the demand it is building into is softening on a per-show basis.

Through mid-2026, North American shows averaged $1,141,221 in gross, down 7.8% from a year earlier, even as the total number of shows climbed (Pollstar). The aggregate set records because there were more shows — not because the average date got stronger.

So the construction cycle and the per-show demand cycle are pointing in opposite directions. Concrete gets poured on a five-year horizon; a softening per-show average shows up in a single year (Pollstar). We argued the per-show decline on its own terms in underwrite the date, not the tour; here it is only the backdrop the building is going up against.

That gap is not a forecast of a glut — headliner supply could grow to fill the rooms. It is a reason to stop treating new inventory as someone else’s problem. When more rooms chase a flat-to-softer per-show number, the promoter booking against them absorbs the friction.

A new amphitheater is a competing date your Comparable Shows never saw

The first place it bites is the calendar.

A 12,000-seat room that opens down the highway is a competing date that did not exist when last year’s Comparable Shows were set. It can pull a touring routing anchor into your metro on a weekend you were holding — and a major’s anchor reshapes every date around it.

This is the supply-side companion to a read we ran on geography earlier this year: stadium-scale tours routing into secondary metros they used to skip. New amphitheaters are how those metros got the rooms to host them. The competing date is no longer only another promoter’s on-sale — it can be a building that opened since you last booked the market.

The practical move is to refresh the competing-date picture against current inventory, not last cycle’s. A market hold you took twelve months ago was priced against a venue map that may already be out of date.

It crowds the exact band where the recommended-capacity call lives

The second place it bites is the right-size decision.

A Promoter Brief’s recommended-capacity call answers one question: which room gives this act the best shot at a strong house without leaving the building half full. Add a new 5,000-to-20,000-seat room to a metro and you have widened the menu — and the odds that a competing booker sizes into the same band you were eyeing.

This is a routing and capacity input, not a Sell-Through prediction. New supply does not tell you how a given on-sale will pace, and it says nothing about audience overlap between two acts. What it does change is the set of rooms in play and the competing dates around them — the inputs that sit upstream of the size call.

It is the inverse of the structural read we ran on the mid-tier festival — a tier the market was deleting. This is a tier the market is over-building, and the promoter sits in the middle of both.

The takeaway: price the new room before you sign the hold

New inventory is not background trade news. It is a line in the pre-booking read.

Before you sign a hold in a mid-size metro, check what 5k–20k capacity has been announced or opened there since the last time you booked it — because a room that did not exist a cycle ago is both a competing date and a right-capacity input your old Comparable Shows never accounted for. The building is the signal. Read it before the On-Sale Window, not after the house comes up short.