When supply chain executives talk about automation, their minds often jump straight to fleets of mobile robots zipping across warehouse floors, robotic arms sorting and packing with machine precision, and high-speed sorters moving thousands of items per hour. However, the real challenge isn’t always the technology itself; it’s the buildings in which it operates.
For example, a staggering 80% of U.S. warehouses were constructed decades before automation was even considered. These brownfield sites, while strategically located, were not designed for the power, layout, or operational demands of modern robotics.
Also, according to Xpert Digital, roughly 80% of warehouses in the U.S. remain unautomated, a figure consistent with global statistics showing a similar proportion of warehouses worldwide without automation.
The retrofitting versus rebuilding dilemma
Retrofitting legacy warehouses often proves to be a smarter financial and operational decision. While greenfield, “automation-native” facilities boast layouts optimized for robotics from the ground up, building new warehouses is not always feasible.
Urban real estate is expensive and scarce, permitting can be slow, and relocating logistics operations risks disrupting supply chains in key markets.
Retrofitting allows companies to modernize incrementally, upgrading electrical systems, reinforcing structural elements, and redesigning layouts to accommodate robotic workflows — all while preserving a facility’s strategic location.
Bridging the gap for warehouse automation
According to Grand View Research, the global warehouse automation market — including robotics, automated storage systems, and software — was valued at $19.23 billion in 2023 and is projected to reach $59.52 billion by 2030 at a compound annual growth rate of 18.7% from 2024 to 2030.
The key to bridging the gap between legacy buildings and cutting-edge automation lies in modular robotics. Unlike large, fixed automation systems that require specific ceiling heights, aisle widths, and load-bearing capacities, modular robots are flexible and scalable. They can be deployed in high-traffic zones, areas with high SKU variability, or other targeted sections of a warehouse where they deliver the greatest value.
Adoption of modular robotics allows operators to incrementally automate operations, limit upfront capital expenditures, and minimize disruptions to ongoing workflows. The flexibility of these systems also supports reconfiguration as business needs evolve, a critical feature in a market increasingly defined by rapid changes and seasonal surges.
From a financial perspective, retrofitting warehouses is often more cost-effective than constructing new facilities. Upgrading an existing warehouse requires investment, since reworking layouts, enhancing power distribution, and ensuring structural integrity for robotic activity are not minor tasks.
However, the costs are generally lower than building a new greenfield site, which in urban areas can range widely depending on size, complexity, and location. Preserving existing locations near dense consumer markets also reduces last-mile transportation costs, providing operational advantages that new facilities may struggle to replicate.
Design for demand: Warehouse retrofits are a strategic imperative
According to CBRE, e-commerce-driven demand will require roughly 330 million additional square feet of warehouse space in the U.S. by the end of 2025, making efficient use of existing infrastructure a critical competitive edge.
Market trends reinforce this strategic imperative. The North American warehouse robotics market, which focuses specifically on robotic systems rather than the broader automation ecosystem, was valued at $4.5 billion in 2023 and is projected to reach $34.3 billion by 2031, according to Verified Market Research. Adoption rates are expected to reach nearly 50% of large-scale facilities by 2025.
This growth is driven not just by technology adoption but by real operational pressures: labor shortages, rising wages, and the relentless demands of e-commerce fulfillment. In this context, the way warehouses are designed or redesigned can be just as critical as the robots themselves.
Key players recognize that investing in facility redesign – whether through optimizing layouts, upgrading power infrastructure, or integrating modular robotics – is the most sustainable path to efficiency. This dual focus on technology and infrastructure is reshaping supply chains, ensuring warehouses can handle current volumes while remaining adaptable for future challenges.
The main point is that one should see the building itself as part of the solution. Legacy warehouses are not obstacles; they are opportunities. With careful planning, targeted investment, and proper use of modular robotics, these facilities can achieve performance levels comparable to new greenfield sites.