Many modular systems are designed in isolation from the projects that ultimately use them. The Rex system was designed the other way around — starting with the constraints of real mid-rise multifamily development in the Pacific Northwest and working backward to build a system that performs within them. The result is a fully integrated DfMA framework that connects structural engineering, unit planning, MEP coordination, and facade design into a single coherent system — one that is repeatable across projects, manufacturable at scale, and designed to compress schedules without compromising quality.
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A Collaborative
Experience That Delivered
Exceptional Results
Built for
urban
demand
and repeatable growth.
Rex Modular is focused on dense urban environments and high-demand locations where speed, labor efficiency, and cost certainty matter most. Starting with our flagship project at 3031 Western Avenue, we are building a repeatable delivery model across multiple asset classes.
We are building a repeatable delivery model across projects - enabling consistent execution, improved predictability, and scalable deployment across urban markets.
Multifamily Housing
The foundation of the Rex platform. Our system is optimized for high-density residential projects in constrained urban environments, where schedule, labor, and cost pressures are most acute.
Hospitality
Hotel development aligns naturally with modular delivery due to unit repeatability and standardized building systems. Rex enables faster delivery, stronger quality control, and accelerated time to market.
Senior Living & CCRCs
Precision-built environments designed for consistency, long-term durability, and operational efficiency. Rex supports senior living communities with a delivery model that reduces construction risk while maintaining resident quality.
The System Details
The Rex structural system is built on a hybrid of HSS steel and cold-formed steel — a combination that delivers the strength and span capacity required for mid-rise construction while remaining compatible with volumetric modular production. The system is engineered to meet Type 1B construction requirements, including 2-hour fire-resistance ratings across all required assemblies.
Modules are fabricated through final finishes in a controlled factory environment, then transported and assembled on-site with minimal wet trades and reduced on-site labor. MEP systems are coordinated and pre-installed at the module level, with inter-module connections designed for speed and repeatability.
The factory model is built around a local assembly facility — sourcing components and integrating them near the project site — keeping logistics manageable and quality control close.
The Apartments
in the project
