Austin convention center rebuild faces petition setback as lawsuit continues over potential 2026 voter ballot

What would it take for a citywide vote?
A push to give Austin voters a direct say on the city’s convention center redevelopment has moved from petition drives to litigation, after the City Clerk’s office concluded in November 2025 that supporters did not submit enough valid signatures to force a ballot measure.
Under Austin’s referendum and charter-amendment rules, a petition must include signatures from at least 5% of the city’s qualified voters or 20,000 signatures, whichever is smaller. If a petition is certified sufficient, the City Council must either adopt the proposed measure or submit it to voters at an election.
The petition effort and the clerk’s finding
The political action committee Austin United PAC organized a citizen petition seeking an ordinance that would postpone demolition and reconstruction of the Austin Convention Center for up to seven years, unless voters affirmatively approve the project earlier. The group submitted tens of thousands of signatures in October 2025 with the goal of placing the question on a May 2026 ballot.
On Nov. 14, 2025, the City Clerk issued a determination that the petition was insufficient, citing an inadequate number of valid signatures after a review process that included statistical sampling and third-party evaluation. That finding prevented the measure from automatically advancing to the May 2026 ballot through the petition pathway.
What happens next: a lawsuit and limited routes to the ballot
In December 2025, Austin United PAC filed suit challenging the city’s rejection and seeking court intervention related to the verification process and records used to reach the insufficiency determination. The case leaves the ultimate question unresolved: whether a judge will order additional verification steps, overturn the insufficiency finding, or otherwise require the city to treat the petition as sufficient.
Absent a court order changing the petition’s status, there is no automatic mechanism that would place the pause ordinance before voters in May 2026. Another possible route—separate from the petition certification—would be City Council action to adopt the proposal or call an election voluntarily, but that would require majority support on the dais.
The redevelopment underway
The city’s redevelopment plan, branded UnconventionalATX, carries an estimated cost of $1.6 billion and is structured to be funded through the municipal Hotel Occupancy Tax and Austin Convention Center revenues, rather than general-fund dollars. Planning documents and city updates describe a one-phase construction approach and a timeline that began with closure and demolition activity in 2025, with reopening targeted for the 2029 spring festival season.
Estimated cost: $1.6 billion
Rentable space: planned 620,000 square feet (550,000 interior plus 70,000 outdoor), up from roughly 365,000 square feet today
Target reopening: 2029
The central dispute now is procedural rather than conceptual: whether opponents met the legal signature threshold needed to require a vote, while construction preparations continue on the city’s approved timeline.
What voters should watch in early 2026
The next milestones are expected in court filings and rulings tied to the December 2025 lawsuit, and in any City Council agenda actions that could independently put the question to voters. Until one of those steps occurs, the petition drive alone does not provide a certified path to a May 2026 referendum on halting the convention center project.