Data-center real estate is growing at a pace that invites skepticism. New campuses keep getting announced, spending plans keep getting larger, and AI demand keeps raising the stakes. But rapid growth does not automatically mean a bubble. The market still shows unusually high occupancy, heavy pre-leasing, and real constraints on power and construction. In Mexico, those pressures are visible in Querétaro, where investment is piling up around a limited supply of ready sites. The question now is not whether the sector is hot. It is whether that heat still rests on solid ground.
Fast growth is not the same as a bubble
The latest debate around data-center real estate starts with a fair question. When a sector grows this fast, it is reasonable to ask whether supply is outpacing real demand. JLL’s latest outlook says the global market could grow at a 14% annual rate through 2030. It could add about 100 gigawatts of new capacity. That would create roughly US$1.2 trillion in real-estate asset value and could push total spending tied to data centers toward US$3 trillion. Those are large numbers, and they invite bubble talk. But a bubble is not defined by fast growth alone. It usually shows up when developers keep building into weakening demand, rising vacancies, and softening lease commitments. That is not what the current numbers show. JLL says global occupancy reached 97% at the end of 2025, while 77% of capacity under construction already had lease commitments. In plain terms, most new space is not being built on hope alone. Much of it is already spoken for before delivery.
A second reason the market still looks grounded is that supply remains hard to bring online. This is not an office tower that can be copied from one block to the next. Data centers need power, fiber, cooling systems, specialized equipment, and long planning timelines. JLL says the average global construction period for a 50-megawatt facility is now about 18 months. Developers are also ordering key materials as much as two years ahead to avoid delays. Even then, nearly six in 10 projects were delayed by at least a quarter. JLL also says construction costs have been rising at a 7% compound annual rate. Other market data points tell the same story. In North America, CBRE found that primary market supply hit a record in the first half of 2025. Vacancy still fell to 1.6%. At the same time, 74.3% of all space under construction was already pre-leased. That is tight-market behavior. It suggests the bigger problem is not too many buildings. It is about delivering enough powered, ready space quickly enough.
Why Mexico matters in this cycle
That backdrop matters for Mexico, where the industry is becoming part of a bigger digital infrastructure push. Querétaro has emerged as the country’s main hub and one of Latin America’s most strategic markets. CBRE says inventory across the region’s four largest markets, including Querétaro, grew 13.7% year over year in early 2025. Even so, major Latin American markets such as São Paulo, Santiago, and Querétaro still posted near-record-low vacancy. Mexico’s own industry association says the country had about 250 megawatts operating and 74 megawatts under construction as of August 2025. It also says the market may need 1.5 gigawatts installed by 2030. The project pipeline helps explain why. AWS has announced plans to invest more than US$5 billion in a data-center cluster in Querétaro. CloudHQ later unveiled a US$4.8 billion plan for six facilities in the same state. OData launched a fourth interconnected facility there, and Terranova began operations in Mexico with its first campus in the Querétaro region. This is expansion, but it is tied to real demand for cloud and AI capacity.
The risk is execution, not empty space
That does not mean the sector is risk-free. It means the risks look different from a classic property bubble. The main pressure points are power availability, transmission, permitting, construction timing, and local acceptance. Those constraints can slow projects, raise costs, or force redesigns. They can also shape where new campuses are built. In Mexico, that matters because the boom is not just a tech story. It is also a story about land, utilities, labor, and how states compete for investment. Some projects are already being planned around those limits. CloudHQ said it is seeking a long-term tenant lease before moving forward with construction. The company also promoted waterless cooling to reduce pressure on local resources. For readers in Mexico, that is the real takeaway. The market is expanding fast, but the strongest evidence still points to scarce capacity, not empty speculative space. The warning signs to watch are simple: weaker occupancy, less pre-leasing, and large new blocks opening without committed tenants. Right now, the data points run the other way.
