Meta Mesa Building 5: Hyperscale AI & Cloud Infrastructure Hub in Arizona
Status: Active Development / Phased Buildout | Location: 3841 S Ellsworth Rd, Mesa, AZ 85212, USA
Project Overview
Meta’s Mesa Building 5 is a key hyperscale expansion facility within the company’s 2.5+ million square foot master-planned data center campus in Mesa, Arizona. Purpose-built to support Meta’s next-generation artificial intelligence (AI) infrastructure, the facility is designed to power large-scale AI training clusters, deep learning models, generative AI applications, and the company’s global digital platforms, including social media, messaging, and immersive computing services. Building 5 incorporates advanced direct-to-chip liquid cooling technology and high-density power delivery systems to efficiently support the thermal and electrical demands of modern GPU-based AI workloads. Powered entirely by 100% certified renewable electricity sourced through regional solar energy projects and utility partnerships, the facility reflects Meta’s long-term commitment to sustainable digital infrastructure and carbon reduction. To minimize water consumption in Arizona’s arid climate, Building 5 utilizes highly efficient dry-cooling technology that delivers up to 60% greater water efficiency than conventional industry cooling systems. The facility also features resilient electrical infrastructure, redundant power and cooling systems, advanced physical security, automated infrastructure management, and high-capacity fiber connectivity for low-latency global communications. As part of Meta’s expanding Mesa campus, Building 5 strengthens the company’s ability to deliver scalable, energy-efficient, and AI-ready digital infrastructure capable of supporting rapidly growing compute demands and future technological innovation.
Quick Facts
| Field | Value |
|---|
| Project Name | Meta Mesa Building 5: Hyperscale AI & Cloud Infrastructure Hub in Arizona |
| Location | 3841 S Ellsworth Rd, Mesa, AZ 85212, USA |
| Status | Active Development / Phased Buildout |
| Commissioning | Phase 1 Go-Live: Target 2025–2026 / Active Campus Expansion |
| Total IT Load | ~70 MW to 100 MW Critical IT Power Capacity Allocation (Building 5 Allocation) |
| Total Capacity | ~500,000 sq ft (~46,450 m²) gross facility footprint (Campus Total: >2.5 Million sq ft across 5+ buildings / 300+ MW capacity) |
| Tier Level | Tier III Equivalent Hyper-Resilient Design / LEED Gold Certified / ISO 27001, ISO 14001, SOC 2 Type II Compliant |
| Project Type | Purpose-Built Owner-Occupied Hyperscale AI Training, Inference & Social Infrastructure Hub |
City Profile
| Header | Details |
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| City Name | Mesa (East Valley) |
| Population | ~512,000 |
| Urban Agglomeration | ~4,900,000 (part of the Phoenix–Mesa–Scottsdale metro area) |
| City GDP | ~USD 30–35 Billion (estimated economic output within Mesa area) |
| Per Capita Income | ~USD 36,000 |
| City Tier | Tier 2 U.S. Technology & Suburban Economic Hub |
| Key Strengths | Aerospace manufacturing, semiconductor ecosystem, data centers, healthcare services, higher education, logistics, tourism, proximity to Phoenix tech corridor |
Companies Involved
| Header | Details |
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| Developer / Operator | Meta Platforms, Inc. |
| Strategic Infrastructure Partner | Salt River Project (SRP) Utility Network & City of Mesa Municipal Authorities |
| Construction Contractor | DPR Construction / Specialized US Mission-Critical Contractors |
| MEP Engineering | Sheehan Nagle Hartray Architects & Burns & McDonnell / Meta In-House Engineering |
| Network Connectivity | Private enterprise dark fiber network; redundant subterranean fiber entrance vaults; direct high-speed optical backhaul connecting Mesa to Meta’s global backbone and North American cloud interchanges. |
| Power Infrastructure | Dual dedicated 230kV high-voltage utility substations on-site, static distributed 2N / Block Redundant UPS architecture, automated switchgear, and multi-megawatt standby diesel generator backup arrays with multi-day on-site fuel autonomy. |
Technical Specifications
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| Power Capacity | ~70 MW to 100 MW Secured Utility Power Allocation (Building 5 Allocation) |
| UPS Redundancy | Block Redundant / 2N Static UPS Architecture |
| Cooling System | Direct-to-Chip Liquid Cooling (DLC) readiness for high-density AI clusters, closed-loop dry-cooling chilled water systems (60% higher water efficiency than industry average), and automated BMS environmental controls. |
| Connectivity | Proprietary fiber mesh backbone linking to regional internet exchange points and global Meta data center nodes. |
| PUE Target | < 1.15 Annualized Operational Design PUE |
| Energy Mix | 100% Certified Renewable Energy backed by dedicated local SRP solar and energy storage Power Purchase Agreements (PPAs). |
Milestones
| Header | Details |
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| Announcement | 2022 (Campus Expansion Phase) |
| Construction Start | 2022–2023 |
| Phase 1 Go-Live | Target 2025–2026 |
| Full Buildout | Active Multi-Phase Building Construction |
Investment Details
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| Total Investment | Estimated $200,000,000 USD to $350,000,000 USD Building Capital Expenditure ($1+ Billion Total Campus Investment) |
| Funding | Corporate Capital Expenditure (Meta Platforms, Inc.) |