Site selection turns the location principles behind industrial outdoor storage (IOS) into a repeatable screen. The best owners do not chase individual listings; they form a thesis about where demand is strong and supply is constrained, then hunt for parcels that fit and survive a physical and legal check. This guide walks the criteria that drive that hunt.
Why Is Location the Biggest Driver of IOS Value?
IOS value is set by proximity to the flow of goods and the work tenants do: highways, ports, rail, distribution centers, dense population and construction activity. Two physically identical yards can differ in value by multiples purely because of location, and a well-placed infill yard surrounded by incompatible uses can't be reproduced nearby, which protects rents.
Location is the largest value driver in IOS — specifically, proximity to the flow of goods and the work tenants perform. A yard's value is set by how close it is to the highways, ports, rail, distribution centers, dense population, and construction activity its tenants serve. Two physically identical yards can differ in value by multiples based purely on location, and a well-placed infill yard surrounded by incompatible uses cannot be reproduced nearby — which protects its rents.
What Criteria Should You Use to Screen IOS Sites?
Screen every parcel against the same factors: interstate proximity, distance to seaports, access to rail and intermodal ramps, local industrial employment, population growth and position on major logistics corridors. Strong scores on these factors deepen the tenant pool and lift rent, and confirming that outdoor storage is legal belongs in the screen from the start.
Strong site selection screens candidate parcels against a consistent set of factors:
- Interstate proximity — fast, truck-suitable access to an interchange deepens the tenant pool and lifts rent.
- Port proximity — within the practical drayage radius of a seaport, container and chassis storage commands premium rent.
- Rail access — near intermodal ramps, container and chassis demand follows rail volumes.
- Industrial employment — deep trucking, distribution, and construction activity means a large, renewing tenant pool.
- Population growth — drives consumption, construction, and last-mile demand while tightening yard supply.
- Logistics corridors — siting within freight crossroads aligns the yard with the heaviest, most durable flow of goods.
Confirming the use is legal is part of selection, not an afterthought — see IOS Zoning & Entitlements.
What Is the Difference Between Gross Acres and Usable Acres?
Usable acres are what remain after setbacks, drainage, easements, wetlands, floodplain and unusable slopes: the land you can actually stripe, drive and lease. Usable acreage is often well below gross acreage and is what drives income, so paying for gross acres is a costly mistake. Also confirm tractor-trailers and equipment can circulate on the site.
One of the most common and costly mistakes in IOS is paying for gross acreage when only a fraction is usable. Usable acres are what remain after setbacks, drainage, easements, wetlands, floodplain, and unusable slopes — the area you can actually stripe, drive, and lease. It is often well below gross acreage and is the figure that drives income, so it must be measured carefully. Confirm, too, that the yard can maneuver tractor-trailers and the intended equipment; a parcel that looks big but cannot circulate trucks is not as valuable as its acreage suggests. This distinction flows straight into IOS Valuation.
Which Yard Surface Is Best, and Why Does Drainage Matter?
Gravel or crushed stone is cheapest and fine for trailer, equipment and overflow storage; asphalt suits trailer parking and drive aisles; concrete is most durable and needed for container stacking and heavy point loads. Drainage matters just as much, because a yard that ponds deteriorates fast, so budget surfacing and stormwater capital into your basis.
The yard surface is the major physical capital decision, and the right choice depends on use, loads, climate, and budget:
- Gravel / crushed stone — cheapest, fine for trailer, equipment, and overflow storage, but needs regrading and may cap rent.
- Asphalt — durable for trailer parking and drive aisles; can soften under heavy point loads in heat.
- Concrete — most durable and most expensive, the choice for container stacking and heavy point loads.
Drainage is just as important as the surface. A yard that ponds or floods deteriorates fast and invites code and environmental problems, so observe drainage in person — ideally after rain — and budget surfacing and stormwater capital into the basis. The cheapest yard to buy is often the most expensive to own if its surface and drainage are failing.
What Security, Access and Utilities Should an IOS Site Have?
Tenants store valuable, portable assets outdoors, so a strong site supports a secure, well-lit, gated perimeter with controlled access in an area where theft is manageable. Confirm legal heavy-vehicle access and easements, and verify power, water, sewer and telecom are adequate. These aren't as decisive as location and zoning, but they can quietly cap rent.
Because tenants store valuable, portable assets outdoors, a strong site supports a secure, well-lit, gated perimeter with controlled access, and sits in an area where theft and vandalism are manageable. Confirm legal access and easements for heavy vehicles, and verify that power, water, sewer, and telecom are adequate for the office and operations. None of these are as decisive as location and entitlement, but each can quietly cap rent or add cost if overlooked.
Worked example: gross vs. usable acres on two 6-acre sites
Illustrative — Hypothetical round numbers chosen to show the math — not market pricing or a quote. Verify rents, costs and cap rates against current local comparables.
| Asking price (each site) | $900,000 |
| Site A usable acres (75%) / price per usable acre | 4.5 / $200,000 |
| Site B usable acres (50%) / price per usable acre | 3.0 / $300,000 |
| Trailer stalls at an assumed 30 per usable acre (A / B) | 135 / 90 |
| Gross stall income at $150 per stall per month (A / B) | $243,000 / $162,000 per year |
At the same price, Site B costs 50% more per usable acre and produces a third less income. The stall count is an assumption: confirm it with a site plan that includes truck turning radii and circulation. Then compare sites on usable acres, not gross acres.
Frequently Asked Questions about IOS Site Selection
What makes a great IOS site?
What is usable acreage in IOS?
How close to a highway should an IOS site be?
What surface is best for an IOS yard?
Why does drainage matter so much for an IOS site?
Screening an IOS site?
Carson Jones is a licensed commercial real estate advisor and business broker with eXp Commercial. Get a confidential read on a yard's location, usable acreage, surface, and entitlement before you commit.
Related IOS guides
- The Complete Industrial Outdoor Storage (IOS) Owner's Guide
- IOS Zoning & Entitlements
- IOS Due Diligence
- IOS Valuation
Educational only — not legal, tax, environmental, or investment advice. Figures vary by market and change over time; verify locally and engage qualified professionals. Carson Jones is a licensed commercial real estate advisor with eXp Commercial. Last updated June 19, 2026.
IOS Site Selection Questions Investors Ask
These are the site questions that come up most when investors evaluate land for outdoor storage, truck parking, and contractor yards, from market demand to rail, access, utilities, and rezoning.
Market demand
How do you determine market demand for an IOS or industrial site?
Start with submarket vacancy, net absorption, asking rents, and new construction for industrial space, then look at IOS-specific signals: how many yards are leased, how fast listings move, and whether trucking, contractor, and equipment users are being turned away. Nearby ports, distribution hubs, interstate interchanges, and utility or infrastructure projects add demand. Calls to local industrial brokers and fleet operators often reveal unmet demand that reports miss.
What are good sources of data on industrial market demand?
Useful sources include quarterly industrial reports from national brokerage firms, subscription databases such as CoStar, county permit and deed records, state DOT freight plans and truck-count data, and local economic development agencies. For IOS, which is thinly covered, local brokers and property managers are often the best source of actual yard rents and occupancy.
Rail access
How much does it cost to install a rail spur on an industrial site?
A rail spur often costs hundreds of thousands of dollars or more, driven by track length, turnouts (switches), grading, crossings, signals, and the railroad's own engineering and construction requirements. Costs rise sharply if the connection requires work on the main line. Get the serving railroad's requirements and a rail contractor's estimate before assigning any value to future rail access.
Will a railroad work with a property owner to install a spur?
Sometimes, but railroads generally prioritize sites that will generate steady carload volume. Expect an application through the railroad's industrial development team, a review of projected shipments, engineering approval, and an industry track agreement that assigns construction and maintenance costs, usually to the property owner. A site with little projected rail traffic is unlikely to get a new switch.
How much does rail service affect an industrial property's value?
Rail service adds value only when a buyer or tenant actually needs rail. For rail users, an active, maintained spur can be a major advantage because they are hard to replicate; for most IOS tenants, which move goods by truck, rail adds little and can even consume usable yard space. Value the site on its truck-oriented use first and treat rail as upside for a narrower buyer pool.
Access, frontage, and traffic
Does an IOS site need a highway occupancy or driveway permit for access to a state highway?
Usually, yes. A driveway onto a state highway typically requires a permit from the state DOT, and a change in use, such as from farmland to truck yard, can trigger a new permit with design standards for width, sight distance, and turn lanes. Confirm that the existing permit matches the intended truck traffic before closing.
Can moving a property's access points change its highest and best use?
Yes. Relocating or adding a driveway can open a site to heavier truck uses, improve traffic flow, or connect it to a better road, which can change what is physically possible and financially feasible. Access changes need approval from the road authority and may require easements, so treat them as an entitlement item with its own cost and timeline.
How do traffic backups in front of a site affect its potential for IOS?
Heavy congestion or backups can make truck turning movements slow or unsafe and lead road authorities to require turn lanes, signals, or restricted left turns. For IOS, where tenants move trucks and trailers daily, poor access reduces rent and tenant appeal. Observe the site at peak hours and check DOT traffic counts and crash history during diligence.
Does a turn lane or road improvement get required for a contractor or IOS yard?
It may. The road authority decides based on expected truck trips, posted speed limits, sight distance, and nearby intersection controls; higher-speed roads and heavier truck volumes are more likely to trigger a turn lane or taper. A traffic engineer can run warrants early, because turn-lane costs can change a project's feasibility.
Does more road frontage increase a commercial lot's value?
Generally, yes, for retail and visibility-driven uses, but for IOS the value of frontage is mostly about access, not exposure. Extra frontage helps with separate ingress and egress, truck circulation, and future subdivision. It can also add screening, landscaping, and sidewalk obligations, so frontage counts only when it improves usable access.
Is a triangular lot with long frontage worth more than a square lot?
Not usually for industrial use. Irregular shapes like triangles reduce usable acreage because setbacks, screening, and truck turning radii eat into the narrow corners. A square or rectangular parcel of the same size typically fits more trailer spaces and circulation. Long frontage may offset part of that discount for retail, but for IOS, usable acres drive value.
Does a stand-alone parking lot have adequate ingress and egress for trucks?
Check it before buying. Many lots built for cars have narrow driveways, tight turning radii, and pavement not designed for heavy trucks. Confirm that a tractor-trailer can enter and exit without backing onto the road, that driveway permits allow truck traffic, and whether any access depends on easements over neighboring land.
Can floodway land be used for ingress and egress?
Sometimes, but it is heavily restricted. Development in a regulated floodway generally requires an engineering analysis showing no rise in flood levels, and fill or structures are often prohibited. A driveway crossing may be possible with local floodplain administrator approval, but access that floods can cut off the yard, so build in a backup route if possible.
How do you value a portion of a tract that has no access?
Landlocked portions are usually valued at a steep discount unless access can be created through the rest of the tract or an easement. If the parcel is under one ownership, the whole tract is often valued together, with the cost and feasibility of internal roads and drainage reflected. If access cannot be created, the portion may be worth only its value to an adjoining owner.
Utilities and fire requirements
Does a lack of sewer disqualify a site for IOS?
No. Many IOS yards need little or no sewer because they have small offices or none; a septic system or holding tank can serve a small guard or office building where health rules allow. Lack of sewer does limit future uses, such as larger buildings or employee-heavy operations, so it can cap long-term value and redevelopment options.
What utility and fire requirements matter for an industrial site?
The key items are three-phase power capacity, water supply for fire protection, hydrant coverage, fire apparatus access, and stormwater. Hydrant spacing and distance requirements come from the locally adopted fire code and fire marshal, and many jurisdictions require hydrants within a few hundred feet of new buildings. For IOS, power is increasingly important for lighting, security, and EV truck charging.
Can a well serve as the water supply for a flex or IOS project?
Yes, but if it serves 15 or more connections or regularly serves 25 or more people for at least 60 days a year, it is a public water system under the federal Safe Drinking Water Act, with state permitting, testing, and an operator. That brings ongoing monitoring and reporting costs. Compare those costs to extending municipal water before choosing a well.
How do you find the closest public water and sewer lines to a site?
Ask the local water and sewer utility for system maps and a will-serve letter, and check county GIS layers. The distance to existing lines, line size, pressure, and capacity determine whether extension is affordable. A civil engineer can price an extension and confirm whether the utility requires the developer to pay for it.
Zoning and rezoning potential
What happens when a site's future land use designation differs from its current zoning?
The current zoning controls what you can do today, while the future land use map signals what the city expects to allow later. If the plan calls for industrial and zoning is agricultural or residential, a rezoning to industrial may be supported. If the plan calls for residential or mixed use, an IOS use may be blocked or phased out over time.
How do you judge whether a rezoning to industrial is likely?
Start with the comprehensive plan and future land use map, then look at surrounding zoning, recent rezoning decisions nearby, staff recommendations, utility availability, and neighbor sentiment. A pre-application meeting with planning staff is often the best early signal. Rezonings that match the plan and adjoin existing industrial uses have the best odds.
Would a typical buyer treat rezoning residential acreage to industrial as realistic?
Only if the evidence supports it. Buyers and appraisers usually value land under current zoning and add value for rezoning only when it is reasonably probable, such as when the comprehensive plan calls for industrial, adjacent land is industrial, and utilities and truck access exist. Otherwise, expect buyers to pay little for the rezoning potential.
Why would an owner choose a semi-rural industrial site, and what are the alternatives?
Owners choose semi-rural sites for lower land cost, larger acreage, and fewer neighbors, which can make zoning and outdoor storage easier. The trade-offs are longer drive times, weaker labor access, limited utilities, and a thinner tenant pool. Alternatives include smaller infill yards closer to customers, older industrial parcels needing cleanup, or excess land at existing industrial buildings.
Surface and special-use sites
Should a truck parking lot that rents spaces for about $150 a month be paved?
Usually not at first. At low monthly rents, well-compacted crushed stone is typically the better return, since paving costs far more and the added rent rarely covers it. Gravel still needs proper base depth, grading, and drainage, plus periodic regrading. Paving may be required by zoning or make sense where heavy traffic, dust, or stormwater rules demand it.
What should you consider when evaluating a rural auto salvage yard site?
The biggest issues are environmental contamination, permitting, and zoning. Salvage yards often have soil contamination from fluids, batteries, and metals, so a Phase I and usually a Phase II assessment are essential. Also confirm the salvage or junkyard license, any legal non-conforming status, screening requirements, and stormwater permit compliance, since some uses lose grandfathered status if they stop operating.
Rent, cap rates, financing and exit
How does location change the rent per usable acre an IOS site can charge?
Rent follows scarcity and convenience. Sites close to interstates, ports and distribution hubs, with legal outdoor storage and easy truck access, command the highest rent per usable acre. Remote or hard-to-reach sites must discount to attract tenants. Benchmark the target against yard rents local brokers report in the same submarket, not regional averages. See IOS valuation.
How does site selection affect an IOS yard's cap rate and resale value?
Well-located, leased yards near interchanges and demand hubs attract the deepest pool of investors and trade at lower cap rates. Sites with weak access, floodplain, unclear zoning or thin tenant demand draw fewer buyers, often only owner-users, and trade at higher cap rates. Choosing the location carefully at purchase is the cheapest way to protect the exit.
Which site features make an IOS yard easier to finance?
Zoning that clearly allows outdoor storage, a clean Phase I, a survey showing legal truck access and usable acreage, location outside the floodplain, and a sound surface with working drainage. Each removes a reason for a lender to cut leverage or decline. Sites missing these often need private credit or more equity. See IOS financing.
Sources
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Carson Jones
Carson Jones is the host of Carson's Corner: Commercial Real Estate, author of The Red Flag Playbook, a licensed commercial real estate advisor and business broker, and the founder of Passive Investments. With 18 years of experience as an entrepreneur and 12 years specializing in passive investing, Carson works with high-net-worth individuals, family offices, business owners, and sophisticated investors as a broker and principal.
Carson holds a BBA in Finance from Baylor University and his Tennessee commercial real estate license (#382989). He actively pursues acquisition and equity opportunities across the United States and abroad through a worldwide network of qualified buyers, family offices, institutional investors, and top-tier developers.