The Project Marvel decision removes a proposed convention hotel site and raises new questions about costs, planning and the future of San Antonio’s downtown mega-project.
AT A GLANCE
- SAWS will not relocate its downtown cooling plant after costs climbed above $300 million.
- The plant site had been considered for a proposed 1,000-room convention center hotel.
- The Spurs arena project near Hemisfair remains the centerpiece of Project Marvel.
- Convention center expansion and the downtown Missions stadium continue moving forward.
- Several other Project Marvel components remain under review or face funding questions.
The $300 Million Project Marvel SAWS Decision
Project Marvel is taking shape but not all pieces are going with it. The San Antonio Water System’s downtown Central Cooling Plant will remain in place after studies found relocating the facility could cost more than $300 million — roughly three times earlier estimates. The decision removes a site that had been considered for a future convention center hotel and offers one of the clearest examples yet of how Project Marvel’s ambitious plans are being reshaped as concepts meet engineering, financing and real-world costs.
For residents trying to keep track of the sprawling downtown redevelopment effort, the cooling plant decision is about more than a utility facility. It highlights the broader challenge facing Project Marvel as city leaders move from renderings and projections to detailed feasibility studies and actual price tags.
Several local news outlets reported that the SAWS Central Cooling Plant at 900 E. Commerce St. will stay where it is after a feasibility review found relocating the facility could cost more than $300 million. The plant had been eyed as the possible site of a new 1,000-room convention center hotel tied to the broader downtown sports and entertainment district.
Project Marvel’s Early Estimates to Real-World Costs
The idea was once estimated closer to $100 million, but that number grew as planners studied what it would actually take to replace the plant, maintain current service and add enough cooling capacity for future downtown growth. In layman’s terms: moving a working utility plant is not like moving a couch. It comes with pipes, capacity, customers and a bill with too many zeros.
SAWS officials have also said the chilled water plant work is separate from the utility’s proposed water and wastewater rate adjustments. The cooling system is paid for by cooling plant customers, not residential ratepayers.
The cooling plant decision highlights a debate that has followed Project Marvel from the beginning. Mayor Gina Ortiz Jones called for an independent financial analysis rather than relying solely on projections prepared for project stakeholders. Although City Council voted to keep planning efforts moving forward, the SAWS review demonstrates how quickly costs can escalate when engineers and consultants move projects from conceptual renderings to detailed feasibility studies.
Also Read: Gavito Calls SAWS Rate Increase “A Slap In The Face” As Plan Moves To City Council
Proposed Project Marvel Convention Center Hotel Moves To The Back Burner
The plant decision changes the future of the proposed convention center hotel. City officials are no longer pursuing development at the Commerce Street plant site, and the hotel is no longer one of the most immediate pieces of Project Marvel.
That does not mean hotel space is completely off the table. The Spurs’ future mixed-use development could still include hospitality, and other hotels remain possible within the broader downtown finance zone. But the specific idea of clearing the SAWS plant for a large convention hotel has lost momentum.
The shift is important because it shows how Project Marvel is moving from big-picture renderings into real-world math. Some pieces are still moving forward. Others are being delayed, scaled back or reconsidered.
One Piece Hasn’t Changed: The Spurs Arena
Project planners intend for the arena to anchor a larger sports and entertainment district with housing, restaurants, retail, office space and public gathering areas.
The arena has been estimated at about $1.3 billion, with a funding structure involving the Spurs, the City of San Antonio and Bexar County venue tax revenue. The arena site is tied to the former Institute of Texan Cultures property, which the city has been working to acquire from UTSA.
The Spurs plan to lead private development around the arena before the city and county issue public bonds for the venue. City leaders say that surrounding development will help create the larger district they have promoted as a key part of Project Marvel.
Still, the public questions remain the same: how much will taxpayers carry, what will the Spurs pay, who controls the land, and what guarantees will residents get beyond another shiny downtown project and what happens if projected revenues fail to materialize?
Convention Center Expansion Still Moving Forward
The Henry B. González Convention Center expansion remains one of the clearest priorities in the plan. City leaders have discussed adding nearly 200,000 square feet to keep San Antonio competitive with other major Texas convention markets.
That expansion is expected to rely on state hotel-related tax dollars through San Antonio’s Project Finance Zone. But the final design, cost and connection to the future arena district are still being studied.
The convention center piece matters because it is tied to the city’s tourism economy, hotel revenue and downtown event business. It also explains why planners were considering another convention hotel in the first place.
Missions Stadium Has Its Own Timeline
The downtown Missions baseball stadium remains one of the most active pieces of Project Marvel. Developers plan to open the $160 million ballpark near Fox Tech High School and San Pedro Creek in spring 2028, creating seating for roughly 7,500 fans.
The project has already sparked concerns about displacement, particularly around the Soap Factory Apartments. Many residents refuse to separate redevelopment from its impact on existing communities. New stadiums may attract investment, but they also transform neighborhoods and affect the people who called them home long before the first rendering appeared.
Land Bridge, Alamodome And Parking Remain Under Review
Several other pieces of Project Marvel are still being studied, delayed or reconsidered.
The proposed land bridge over I-37 would connect downtown and the East Side, but major federal funding may be needed to build the project as originally envisioned. The city still has grant money to study connectivity options, including sidewalks, bike paths, underpasses or a smaller pedestrian bridge.
The Alamodome is also no longer near the front of the line for a major renovation. City officials have pushed larger upgrades years into the future while focusing on smaller improvements and basic operational needs.
Parking and transportation remain unresolved. A new arena, expanded convention center, baseball stadium and mixed-use district would all add pressure to downtown streets, garages and transit. City officials are expected to study parking supply, VIA coordination, pedestrian access and whether any new garage could help pay for itself.
For now, Project Marvel continues moving forward. But the SAWS cooling plant decision shows what happens when planners replace concepts with calculations. As city leaders evaluate the arena, convention center, stadium and surrounding development plans, residents will continue asking how much the projects will cost, who will pay for them and what public benefits they will ultimately deliver.
