Old Industrial Never Dies

Why Original Purpose, Current Use, and Future Use Drive Commercial Property Assessment

We don't get to walk many buildings with bomb-resistant roofs, but when we did, it was in Pocatello, Idaho. Why Pocatello?

In the aftermath of Pearl Harbor, the US Navy realized it was woefully behind in armament manufacture and authorized the construction of the Pocatello Naval Ordnance facility — a 1.4-million-square-foot industrial campus built to manufacture, refurbish, and reline the largest naval guns in the U.S. fleet. They selected the site for a variety of reasons, but the two most significant were the easy access to heavy transportation and distance from the Pacific Ocean.

Even in the 1940s, Pocatello was well-situated for industrial work as a railroad hub and on the then-transcontinental highway that preceded the Interstate highway system. They needed both, to transport materials in and, even more importantly in the case of the railroad, to transport finished products out.

The Plant cast barrels for battleships and assembled the turrets to mount the guns. Those are not lightweight pieces that can be slapped on a flatbed truck.

We were there for a limited scope inspection, working with potential issues with soil settlement, water migration and intrusion, and such.

While there, we were struck by the juxtaposition of these old heavy industrial buildings that once churned out turrets, now rebranded as Titan Center, turning out fabricated metal and electrical transformers. There is an underlying principle, universal in nature; every commercial building was built for a specific purpose. Understanding that purpose — and the next purpose to which the building will be put — is the starting point of any meaningful commercial property assessment. The case is most visible in extreme examples, but it applies just as forcefully to office buildings, warehouses, retail centers, and multi-tenant industrial parks.

Original Purpose Shapes the Bones of a Building

Every purpose-built structure carries its design intent in its bones, and at Pocatello the bones are hard to miss. Cranes were sized to handle the weight of the barrels and turrets no forklift was ever going to lift. Foundations poured for specific loads. Bay spacing set by the equipment, the material flow, and the clearances the original operator needed. Roof structures, wall sections, mechanical rough-ins, and floor slabs all specified for one job — not for "industrial" service in the abstract.

The original heating tells the same story. The plant was warmed by four massive coal-fired furnaces feeding distribution tunnels beneath the slab and out to perimeter vents, a system scaled to heat a building the size of a small town's worth of floor space. The coal is gone and the furnaces have been converted to natural gas, but the tunnels are still down there. Due to the costs involved in such an inefficient heating system, they are no longer in active use.

That original intent tells an inspector what to expect, what to verify, and where the unusual conditions like to hide. A building designed for heavy-process work carries structural capacity and overhead clearance no modern light-industrial tenant will ever use — and it carries decades of mechanical, electrical, and finish work layered on top of mid-century construction. A 1980s shopping mall reads in an entirely different key: long open spans, dense finishes, systems sized for comfort and lighting rather than crane loads and process exhaust.

Original purpose also writes the inspector's list of latent risks before we ever walk the floor. Mid-century industrial construction commonly means asbestos in pipe insulation and floor mastics, lead-based paint on structural steel, fluorescent ballasts that may hold PCBs, and electrical infrastructure patched and re-patched through six or seven generations of tenant.

Current Use Imposes Different Demands

A purpose-built building will accommodate a lot of later uses. It will not accommodate them all equally. The gap between "the building can hold our equipment" and "the building works for our process" is exactly where buyers, tenants, and lessees keep finding cost they did not budget for.

Pocatello shows the range inside a single campus. The same bays that once turned out gun turrets now house metal fabricators and a transformer manufacturer — heavy work, but not the work the buildings were drawn for. Every one of those tenants inherited a structure shaped by the occupant before them, and the one before that, all the way back to the Navy.

So the questions worth asking are practical, not theoretical. Does the existing electrical service actually support the current operator's load profile, or has the panel schedule been creatively rearranged to make one transformer carry more than it was sized to carry? Are the HVAC systems matched to the thermal and humidity demands of the current process, or left over from a prior tenant and chronically undersized? Is the roof drainage keeping up under current snow and rain loads, or running at the edge of its design capacity?

Those questions land hardest when the current use is a long way from the original one. A building that has hosted a parade of fabricators, contractors, and specialty manufacturers over six decades carries the cumulative engineering decisions of every one of them. Some were good. Some were expedient. Plenty were both. The inspection's job is to read that layered record and find where the current operator is exposed.

For tenants under triple-net or modified gross leases, an ongoing inspection program — a baseline assessment plus recurring follow-ups — is one of the cleanest ways to track material change against lease obligations. It documents condition over time, separates pre-existing issues from operator-caused damage, and catches deterioration before it turns into a capital event.

Future Use Is the Investor's Question

Adaptive reuse is one of the most active growth categories in commercial real estate, and it is where the original-current-future framework earns its keep. Office-to-residential conversions, retail-to-mixed-use repositioning, industrial-to-flex transitions — each can unlock real value or expose a buyer to costs nobody penciled in. The pattern repeats across all of them: the new use makes different demands on the bones than the old use did, and those demands either line up with what the building has or they do not.

The questions here point forward. What is the structural capacity, and how does it compare to the load profile of the intended new use? What service is available at the meter, and what would the new use require? What code provisions does a change of use trigger — accessibility, life safety, energy, mechanical — and what work comes with them?

A baseline Property Condition Assessment under ASTM E2018 describes the existing systems and identifies material physical deficiencies as they stand today. That is the standard's scope, and it is the right scope for the large majority of buy-side due diligence. A use-specific evaluation reaches past that line, mapping where existing capacity supports a contemplated new use and where it falls short. That work sits at the boundary between inspection and engineering, and a competent inspector can define the parameters, frame the critical questions, and bring in the appropriate specialist when the answer calls for one.

For an investor chasing an adaptive reuse play, that forward read is often the difference between a deal that pencils and a deal that stalls. A building that looks like a candidate in the listing photos can disqualify itself on the walkthrough. A building that looks unremarkable can turn out to hold the capacity for a repositioning the last owner never saw.

The Practitioner's Read

Every commercial building was built for a specific purpose. The work of a competent commercial inspection is to read that purpose, judge how it has been adapted across the building's history, and say plainly what it can and cannot support going forward. A campus like Pocatello — three uses deep and counting — makes the principle impossible to miss. A building that has only ever done one job makes it easy to overlook. Both deserve the same careful read.

Calibre Commercial Inspections provides Property Condition Assessments, ongoing inspection programs, and use-specific evaluations across Idaho, Eastern Oregon, Eastern Washington, and Western Montana. Our CCPIA- and ICC-certified inspectors read commercial buildings in the context of their original design, their current operation, and the next chapter the buyer or tenant has in mind. Contact us to discuss your property