Data Center Space Availability: What to Know for Q3 & Q4 2025

Data center availability is more competitive than ever as AI demand, cloud growth, and power constraints squeeze global capacity. For businesses planning expansions, understanding where space is available, who is building, and how to secure the right deal is critical for 2025 and beyond.

Who’s Adding Data Center Capacity?

Leading hyperscalers like Microsoft, Google, and Meta continue to dominate new builds to support AI workloads. Equinix, one of the world’s largest colocation providers, plans to double its capacity by 2029, investing $4–5 billion annually in high-density, liquid-cooled data centers.
New energy strategies are also emerging: Meta is developing behind-the-meter power plants like its 200 MW natural gas facility in Ohio to guarantee supply. Industrial property developers, such as Goodman Group, are repurposing warehouses and logistics sites to build massive new data centers in North America, Europe, and Asia-Pacific.

Top Data Center Markets for Late 2025

The Northern Virginia data center market remains the world’s tightest, with vacancy below 1%. Atlanta, Phoenix, Dallas, and Chicago are growing fast as operators look for affordable land and more power availability.
In Europe, Frankfurt, London, Amsterdam, Paris, and Dublin lead in new supply, but secondary cities like Madrid, Milan, and Warsaw are gaining traction. Mumbai has emerged as a global contender, ranking sixth worldwide for under-construction capacity. Singapore, Tokyo, and Sydney remain in demand, but land and power limits continue to drive competition.

What Makes a Good Data Center Offering?

With power and cooling constraints, not all data center deals are equal. Look for:

• Reliable power: Grid constraints make on-site generation or renewable PPAs a big plus.

• High-density readiness: AI and machine learning workloads demand liquid cooling and advanced heat management.

• Flexible expansion: Modular builds let you scale up quickly without heavy retrofits.

• Strong ESG performance: More companies now require partners with sustainable operations.

• Proven delivery: Many facilities are pre-leased years in advance. Work with providers who have a track record of delivering on time and at scale.

Why This Matters Now

CBRE reports that Q1 2025 vacancy rates in major markets dropped to just 6.6%, and rents continue to rise. Hyperscalers are locking up entire campuses years ahead. This means companies that wait too long risk paying premium prices or compromising on location, design, or power resilience.

How Arkitech Group Helps You Find the Right Space

Arkitech Group’s data center experts combine deep market intelligence, proven site selection strategy, and trusted industry connections to help you secure the right space — at the right price — before it’s gone. We help clients evaluate new builds, negotiate flexible lease terms, and identify hidden risks related to power supply, cooling, or sustainability.

If you need to expand your data center footprint in Q3 or Q4 2025, now is the time to plan. Contact Arkitech Group to get clear guidance, real-time availability data, and unbiased advice to make your next move with confidence.