SACRAMENTO, Calif. — Mark III Construction, Inc. (M3), a long-standing leader in mechanical, electrical, and plumbing construction and a pioneer in modular and industrialized building methods, has officially announced its relocation to a 340,000-square-foot advanced manufacturing facility in McClellan Park. The new site includes 34,000 square feet of dedicated office space and is designed to support the company’s rapidly growing demand across the Western United States.

The move comes at a time when the construction sector is undergoing a profound shift. Labor shortages, increasing project complexity, and the need for faster delivery have accelerated interest in industrialized construction — the strategy of manufacturing building components off-site in a controlled environment. Mark III has been one of the region’s most active champions of this movement, investing heavily in modular pods, prefabricated MEP systems, and componentized building assemblies.

Facility Designed for High-Volume Industrialized Production

The new McClellan Park facility is built to enable large-scale production of:

• Fully finished modular building pods
• Interior and exterior prefabricated wall panels
• Mechanical skids
• Electrical racks
• Plumbing assemblies
• Other factory-built MEP systems used in data centers, hospitals, and complex commercial structures

By consolidating these advanced manufacturing operations under one roof, Mark III says it will significantly enhance efficiency, shorten project schedules, and reduce waste and rework — benefits that are increasingly crucial for customers in high-growth markets like healthcare and mission-critical infrastructure.

The company’s expanded production line will also strengthen quality control, allowing teams to build and inspect systems in a predictable, climate-controlled environment rather than relying solely on jobsite conditions.

Leadership: “A Turning Point for the Industry”

The company’s CEO emphasized that this move signals more than a physical expansion — it represents an industry transformation that is well underway.

“This move represents a key step in M3’s mission to lead the evolution of construction. We’ve reached an inflection point where owners are expecting higher quality, faster delivery, and lower cost. Industrialized construction has proven it can deliver all three,” said Dan Carlton, Mark III’s president and CEO.

He added that momentum is accelerating across the sector. “The industry is at a turning point, leaders are embracing industrialized construction and moving decisively toward this new way of building. We are proud to be at the forefront, setting the pace for the future,” Carlton said, crediting Jason Klier and the LDK team for their role in securing the new facility.

Strategic Location to Serve the Western U.S.

The manufacturing hub’s location in McClellan Park, one of Northern California’s fastest-growing business districts, positions M3 to support a wide range of large-scale projects. Its proximity to major highways and transportation corridors will enable faster deployment of modular components throughout California and into Nevada.

With demand for prefabrication booming — particularly in the data center, healthcare, industrial, and higher education sectors — Mark III’s expansion is expected to increase production capacity dramatically while supporting the company’s long-term mission of reshaping the construction landscape through innovation.

Five Decades of Growth and Innovation

For more than 50 years, Mark III has been known for delivering complex building systems and complete project solutions. This latest expansion builds on that legacy, signaling a new chapter for the company as it scales its industrialized construction business and enhances capabilities across M3 MEP, M3 Service, and M3 Components.

The company says the new facility will not only support existing customers but will allow M3 to pursue larger, more complex, and more schedule-sensitive work — particularly in markets where speed, precision, and repeatability are critical.

About Mark III Construction (M3)

Mark III is a full-service construction company with three integrated business units:

• M3 MEP: Mechanical, electrical, and plumbing contractor specializing in healthcare, higher education, and industrial projects.
• M3 Service: 24/7 mechanical, electrical, and plumbing service provider.
• M3 Components: Developer of modular and industrialized construction solutions for modern building delivery.

Originally reported by Mark III Construction Inc in Construction Dive.