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The 2026 Guide

IOS Valuation: Rent Per Acre, Cap Rates & Price Per Acre

IOS is valued by triangulating methods: NOI divided by a cap rate, checked against rent per acre and price per acre, because a yard is part income, part land.

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Valuing industrial outdoor storage (IOS) blends conventional income-property analysis with land-based metrics, because the asset is part income stream and part scarce land. The most reliable approach triangulates several methods rather than leaning on any one. Here are the tools and how they fit together.

How Do Cap Rates Determine IOS Value?

The core method divides net operating income by a market cap rate. IOS cap rates vary with location quality, tenant credit, lease term and structure, and interest rates: well-located leased yards trade at lower cap rates, while smaller, multi-tenant or value-add yards trade higher. In thinly traded submarkets, check cap rates against current comparable sales.

The core method capitalizes net operating income at a market capitalization rate: value equals NOI divided by the cap rate. Cap rates for IOS vary with location quality, tenant credit, lease term and structure, and the interest-rate environment. Well-located, leased, lower-risk yards command lower cap rates and higher values; smaller, multi-tenant, value-add, or weaker-location yards trade at higher cap rates to compensate for management intensity and lease-up risk. Because IOS is thinly traded in some submarkets, cap rates must be checked against current comparable sales rather than assumed.

How Are IOS Rents Measured Per Acre and Per Space?

Rent per usable acre is the main benchmark for IOS income, showing whether in-place rents sit above or below market; that gap defines much of the value-add opportunity. Truck and trailer parking is often analyzed as rent per stall per month, and converting between the two through stalls per acre ties income to layout efficiency.

Rent per acre (or per usable acre) is the primary way IOS income is benchmarked, letting you compare a yard's pricing power across sites and submarkets and judge whether in-place rents sit above or below market. The gap between in-place and market rent per acre defines much of the value-add opportunity. For truck and trailer parking, income is often analyzed as rent per space (per stall per month), which ties directly to layout efficiency — how many usable stalls fit per acre. Converting between the two via stalls per acre is routine, and it connects valuation back to the physical realities covered in IOS Site Selection.

Why Should You Compare IOS Deals by Price Per Usable Acre?

Price per acre is the headline land metric, but the refinement that matters is price per usable acre — price relative to the leasable, drivable area after setbacks, drainage, easements, and unusable ground. Gross-acre pricing can badly overstate what actually produces income, so disciplined buyers always convert to usable acres before comparing deals or to alternative industrial land values.

How Do Replacement Cost and Land Value Support IOS Pricing?

Replacement cost asks what it would take to buy comparable land, entitle it and build the surface, fencing and drainage. In supply-constrained markets the entitlement often can't be replaced at any price, so entitled yards can trade above their improvement cost. Underlying land value sets a downside floor and can create redevelopment upside.

Two more checks anchor the analysis. Replacement cost asks what it would take to recreate the asset — acquire comparable land, entitle it, and build the surface, fencing, drainage, and improvements. The key insight is that in supply-constrained markets the entitlement often cannot be replaced at any price, which is why entitled yards can trade above the cost of their physical improvements. Underlying land value for the highest and best use sets a downside floor and can create redevelopment upside; because IOS carries little depreciable or obsolescing building value, its worth is anchored in land and entitlement, which supports value retention and gives owners multiple exits. How that land basis is treated for taxes is covered in IOS Tax Strategies.

How Do You Reconcile the Methods Into One IOS Value?

Run the income method for operating value, cross-check it against price and rent per usable acre and recent comparable sales, sanity-test it against replacement cost and land value, and reconcile everything into a value range. Relying on a single metric, especially a thin set of cap rate comps, invites mispricing in a market as location-specific as IOS.

The disciplined approach runs the income method for operating value, cross-checks against price and rent per usable acre and recent comparable sales, sanity-tests against replacement cost and underlying land value, and reconciles the methods into a value range. Relying on any single metric — especially a thin set of cap-rate comps — invites mispricing in a market as location-specific as IOS. For the capital structure that sits on top of the value, see IOS Financing.

Worked example: triangulating one IOS value

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.

Usable acres / net rent per usable acre per year4.0 / $30,000
Net operating income$120,000
Income approach at a 7% cap rate≈ $1,714,000
Price per usable acre / per gross acre (6 gross acres)≈ $428,600 / ≈ $285,700
Less contributory value of paving, fencing and lighting$300,000
Residual land value≈ $1,414,000

Next, check the income value against closed sales on a price-per-usable-acre basis, and check the residual land value against land sales. If the methods disagree widely, the rent or the cap rate is probably wrong. The figures match the backing-into-land-value example in the questions below.

Frequently Asked Questions about IOS Valuation

How are IOS properties valued?
IOS is valued primarily by capitalizing net operating income at a market cap rate, and cross-checked against price per usable acre, rent per acre, rent per space, replacement cost, and the underlying land value for the highest and best use. Because there are few buildings to depreciate, much of the value sits in land and entitlement, and triangulating several methods is more reliable than any single metric.
What is rent per acre in IOS?
Rent per acre is the standard way IOS income is quoted and compared, expressed as monthly or annual rent for each usable acre of yard. It lets owners benchmark pricing power across sites and submarkets and gauge whether in-place rents are above or below market. Usable acres matter more than gross acres, and the gap between in-place and market rent per acre defines much of the value-add opportunity.
What cap rates do IOS properties trade at?
IOS cap rates vary with location quality, tenant credit, lease term and structure, and the interest-rate environment. Well-located, leased, lower-risk IOS has traded at cap rates competitive with other industrial product, while smaller, multi-tenant, or value-add yards trade at higher cap rates to compensate for management intensity and lease-up risk. Cap rates move with capital markets and should be verified against current comparable sales.
What is price per usable acre?
Price per usable acre expresses the purchase price relative to the leasable, drivable land after setbacks, drainage, easements, and unusable area. It is a more honest comparison than price per gross acre, which can badly overstate the income-producing portion of a site, and it grounds the analysis in the scarce resource at the center of the asset.
Why does land value matter in IOS valuation?
Because IOS carries little building value to depreciate or become obsolete, its worth is anchored in land and entitlement. The land's value for its highest and best use sets a downside floor and can create redevelopment upside, giving owners a menu of exits — hold for income, sell to a user, or redevelop — and supporting value retention through cycles.

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Related IOS guides

Educational only — not legal, tax, environmental, or investment advice. Cap rates, rents, and values vary by market and change over time; verify against current comparable sales and engage qualified professionals. Carson Jones is a licensed commercial real estate advisor with eXp Commercial. Last updated June 19, 2026.

IOS Valuation Questions Investors Ask

These are the valuation questions owners, buyers, and appraisers raise most often about industrial outdoor storage yards, truck parking, and the land underneath them, answered with the methods the market actually uses.

Cap rates and the income approach

What cap rate applies to a truck parking or IOS operating business?

It depends on whether you are valuing the real estate or the business. A yard leased to an operator on a net lease is valued on that rent at an IOS real estate cap rate. A self-operated truck parking business with month-to-month customers carries more operating and vacancy risk, so its income is capitalized at a higher rate or priced on a multiple of cash flow. Separate the two: estimate market rent for the land, value it as real estate, then value any business margin above that rent on its own.

How do you support a cap rate selection for an IOS property?

With recent sales of comparable leased yards, cross-checked against investor surveys and a band-of-investment or debt-coverage test. The strongest support is two or three closed IOS sales with similar lease term, tenant credit, usable acreage, and zoning. Where direct comps are thin, show the spread to industrial building cap rates and current debt costs, and explain why the subject deserves a premium or discount. A cap rate backed by verified sales is far more defensible than one taken from a national survey alone.

How do you back into IOS land value using rent and a cap rate?

Divide the net annual ground or yard rent by a market cap rate, then deduct the contributory value of any improvements. For example, a yard earning $120,000 a year net at a 7% cap rate indicates about $1.71 million; if paving, fencing, and lighting contribute $300,000, the residual land value is roughly $1.41 million. Use rent that reflects land plus minimal improvements, and confirm the result against land sales so a temporary high rent doesn't inflate the land.

How do you test whether projected market rent supports the purchase price of an IOS or light industrial property?

Capitalize the projected net rent at a realistic market cap rate and compare the result with the price plus lease-up costs. Haircut the rent for downtime, leasing commissions, and any improvements needed to deliver the space, then check debt coverage at today's rates. If the deal only works at the top of the rent range with no vacancy, the price is ahead of the market. Signed leases at comparable yards are better support than asking rents.

Truck, trailer, boat, and RV parking

What is the highest and best use of a truck, boat, or RV parking lot?

It is the legally permitted, physically possible, financially feasible use that produces the highest land value. For many paved, fenced lots, continued outdoor storage or truck parking is the highest and best use because it earns income with little capital. The analysis changes if zoning allows a building, the site sits in a growing corridor, or nearby land sales for development exceed the capitalized storage income. In that case the storage use is an interim use and the land is valued on its redevelopment potential.

How much more should a truck parking lot charge for a full-length tractor-trailer than for a tractor only?

Price by the space the vehicle actually occupies, with a premium for the turning room it needs. A tractor with a 53-foot trailer typically needs a stall roughly 70 to 80 feet long, versus about 25 to 35 feet for a bobtail tractor, so full-length rates usually run well above tractor-only rates. Set the exact premium from a survey of nearby lots, since local supply and security features drive pricing more than any rule of thumb.

How do you value a parking lot as its own entity in a sale?

Value it on its income if it is leased or operated, and on its land value if it is not. A leased lot is valued by capitalizing net rent; an operated lot is valued on net operating income after management, insurance, taxes, and maintenance. Then check that figure against what the land would sell for as a development or storage site. The lot is worth the higher of the two only if its zoning and access let a buyer realize that value on its own, without the parcel it currently serves.

Where do you find comparable sales for leased parking lots and IOS yards?

Start with commercial data services, county deed and transfer records, and brokers who specialize in IOS and truck terminals. Many small yard sales are off-market, so verify price, acreage, lease terms, and condition directly with the buyer, seller, or broker. Recorded transfer tax and deed data confirm price, while the lease details usually come only from interviews. Older sales in the same submarket can still be useful if you adjust them for time.

Comparable sales and adjustments

Do comparable sales need a similar site coverage ratio and amount of paving to value a storage yard?

Ideally yes, and where they don't, you adjust for it. A low-coverage yard with mostly paved or stabilized land competes with other yards, not with warehouses at 40% to 50% coverage. When coverage differs widely, value the land and the building separately: price the usable yard on a per-usable-acre basis and add the contributory value of the building. Paired sales, or the cost to add or remove paving, can support the adjustment.

Does it matter what an owner actually does with the paved yard areas when valuing the property?

Yes. Paved, fenced yard that a tenant can rent for storage or parking earns income and adds value, while paving that only serves employee parking or truck circulation is valued as part of the building's function. A yard leased separately, or that could be, supports a higher per-acre value than one that is needed for the building to operate. Check whether zoning allows the yard to be leased on its own before giving it independent value.

What should you consider when using sale-leaseback sales as comparables for end-user industrial property?

Sale-leaseback prices reflect the lease terms the seller signed, not just the real estate. A seller can boost the price by agreeing to above-market rent, so these sales often overstate fee simple value. Before using them, compare the rent with market rent, note the tenant's credit and lease length, and adjust to fee simple. They are better evidence for leased-fee cap rates than for owner-user value.

When parcels are assembled, how do you determine what each one contributes to the whole?

Value the assembled site as a whole, then allocate based on each parcel's contribution to usable area, access, and frontage. A parcel that supplies the only curb cut or the truck turning area may be worth more per acre than a landlocked strip. Buyers often pay an assemblage premium for the final piece, but that premium belongs to the combined site, not to each parcel at its stand-alone value. Document any allocation, since lenders and tax assessors may look at it.

Can residential acreage sold with the intent to rezone to industrial be used as an industrial land comparable?

Yes, with care. If the buyer paid a price that assumed industrial zoning, the sale reflects industrial value adjusted for rezoning risk, time, and cost. Confirm with the buyer whether the price was contingent on rezoning; a closed sale after approval is better evidence than one priced on speculation. If the rezoning failed, the sale is better used as a residential comparable.

Does a rail spur add value to an industrial or IOS property?

Sometimes. A working spur adds value when the local market includes rail users who would pay for it, such as bulk materials, lumber, or transload operators. An inactive or unserviceable spur can add little or even cost money if it blocks truck circulation or must be removed. Support any rail premium with rail-served sales or leases, and confirm the railroad will still serve the site.

How do you value a rural auto salvage yard beyond its land value?

Separate the real estate from the business. The land is valued as industrial or rural land, adjusted for the cost to clear inventory and address environmental issues like fluids and soil staining. The salvage business, including its license, inventory, and customer base, is valued as an operating business. The non-conforming or grandfathered status of the use can add value if a new salvage yard could not be permitted today.

Land value, redevelopment, and residual methods

Should IOS redevelopment land be valued by acreage, comparable land sales, or price per buildable unit?

Use comparable land sales measured on the unit the market trades on. For IOS and industrial land, that is usually price per usable acre or per developable square foot, not gross acreage, because wetlands, floodways, and setbacks don't earn rent. Price per buildable unit fits residential land. Cross-check with a residual analysis that subtracts development costs and profit from the finished value.

Does a $3 million cash price make sense for land with remaining pre-development risk, and how do you set an appropriate land basis?

Only if the price is discounted for the risk that remains. Start with the value as if fully entitled, then deduct the cost and time to finish entitlements and a profit for taking the risk that approvals fail. A buyer paying cash for land that still needs zoning, utilities, or permits is effectively funding development risk, so the basis should be below entitled-land comparables. Many buyers bridge the gap with options or contingent closings.

Can you value IOS development land with no comparable sales by working backward from the finished value?

Yes. This is the land residual or development approach: estimate the stabilized value of the finished yard, subtract the costs to build it (paving, fencing, drainage, utilities, soft costs, and carry), subtract a developer profit, and discount the result to today for the time it takes to deliver. The same method applies to surplus land whose future profitability you can estimate. It is sensitive to every input, so test it against any land sales you can find.

Should site improvements like paving be depreciated faster than buildings?

Yes, in both appraisal and tax terms. Appraisers give paving, fencing, and lighting shorter economic lives than buildings, so they lose value faster in a cost approach. For federal tax purposes, land improvements are 15-year property versus 39 years for nonresidential buildings, and under the One Big Beautiful Bill Act they qualify for 100% bonus depreciation when acquired after January 19, 2025. The land itself is never depreciated.

Zoning and entitlement risk in value

Is the price gap between city industrial land and a semi-rural site the profit for taking zoning-change risk?

Partly. The gap pays for rezoning risk, but also for time, entitlement costs, missing utilities, weaker access, and a thinner pool of tenants. Only what remains after those costs is true profit for taking the risk. Don't assume a semi-rural site will reach city land values once rezoned, because location and access drive IOS rent as much as zoning does.

Should the cost to rezone be deducted from a property's value?

Yes, when the value assumes a zoning the property doesn't yet have. Deduct the hard and soft costs of rezoning, the carrying cost during the process, and an allowance for the risk that approval is denied or conditioned. If the property is valued under its current zoning, there is nothing to deduct. Appraisers usually show both the as-is and the as-entitled values.

Is a downward value adjustment appropriate for a grandfathered non-conforming IOS use?

Often, but not always. Non-conforming status carries risk: the use can be lost through abandonment or major damage, and expansion is usually restricted, which lenders and buyers price in. The scarcity of yards that couldn't be permitted today can offset that risk and even support a premium. The adjustment depends on how strong the local non-conforming rules are and how long the use can lapse before it is lost.

Flood zones and unbuildable land

How is a floodplain discount determined for IOS land in an AE flood zone?

From paired sales where possible: compare land in the AE zone with similar land outside it, and measure the price difference. Where paired sales are scarce, estimate the cost of fill, elevation, compensatory storage, and permitting, plus higher insurance and lender scrutiny. Discounts vary widely by market and by how much of the site is affected, so a percentage borrowed from another market is weak support.

If part of a parcel is developable outside the flood hazard, how should that be reflected in its value?

Value the developable portion at usable-land rates and the flood-impacted portion at a much lower rate. This split gives a more accurate number than applying one blended discount to the whole parcel. For IOS, flood-zone land can sometimes still be used for parking or storage if permitted, so it may carry more value than truly unusable land. Confirm with the local floodplain administrator what is allowed.

Should a flood discount reflect only mitigation costs, or does the market penalize AE flood zone land beyond those costs?

The market often penalizes it beyond the direct costs. Buyers and lenders also account for permitting delays, insurance premiums, the risk of damage to stored equipment, and a smaller pool of buyers when it is time to sell. Mitigation cost sets a minimum discount, not the full one. Paired sales are the best way to measure the extra penalty in a given market.

How do you value floodway or other land that can't be developed?

Value it on the uses it still allows, which is usually a small fraction of developable land value. Unbuildable land can contribute open-space or stormwater credits, setback or buffer area, access, or conservation-easement value. On an IOS site it may also be allowed for limited low-impact storage or parking, subject to floodway rules. Compare it with sales of similar unbuildable land, not with nearby developable acres.

Easements and ground leases

How is rent for an underground easement across an IOS property determined?

It is based on the value the easement takes from the property, not a flat market figure. Estimate the land value inside the easement area, the percentage of rights given up (an underground line usually takes less than a surface easement), and any limits on paving, heavy loads, or future building. Utilities often pay a one-time payment, while private parties may pay annual rent. Whether a few thousand dollars a year is fair depends on the land value and how much the easement restricts the yard.

Is valuing a ground lease by multiplying the fee simple land value by a cap rate a reasonable approach?

It is a starting point for estimating market ground rent, not a valuation of the leased fee. Ground rent is often set as a percentage of land value, but the value of the landlord's position depends on the actual contract rent, escalations, term, tenant credit, and reversion. Value the leased fee by discounting the contract rent and the reversion, then compare it with leased-fee ground lease sales.

Where can you find market support for discount rates on long-term ground leases?

From sales of leased-fee ground lease interests, investor surveys that track net-lease and ground-lease yields, and the spread over long-term Treasury yields. Interviewing buyers who acquire ground leases also helps. Long-term ground leases with strong tenants and fixed escalations price much like bonds, so their yields track interest rates closely.

Why do ground leases trade at lower cap rates than absolute net leases?

Because the landlord's position is safer. In a ground lease, the tenant's building sits on the land and serves as security; if the tenant defaults, the landlord can recover the land and often the improvements. The landlord also has no building to repair or replace and usually receives the improvements at the end of the term. That combination of protection and reversion value supports a lower yield.

What is the difference between buying the leased fee and the leasehold in a ground lease?

The leased fee is the landlord's interest: you own the land and collect ground rent. The leasehold is the tenant's interest: you own the right to use the land and usually the building on it for the remaining term, but not the land. A leasehold buyer collects the building's income and pays ground rent, and the value of that position shrinks as the lease runs down. Lenders look closely at the remaining term when financing leaseholds.

How do you value a long-term land lease using the remaining lease income plus the reversion of the improvements?

Discount the remaining ground rent payments and the expected reversion to present value at a market discount rate. The reversion is the land and any improvements the landlord receives at expiration, estimated at that future date and discounted back. The longer the remaining term, the more of the value comes from the rent and the less from the reversion. Use separate discount rates if the rent and the reversion carry different risks.

What should be considered about the reversion of improvements at the end of a 50-year ground lease?

Read the lease for who owns the improvements at expiration and whether the tenant must remove them. Also estimate the condition and remaining life of the improvements at that point, demolition or environmental cleanup costs, and whether the use will still be legal under future zoning. For IOS, the improvements are usually paving, fencing, and lighting with limited remaining life after 50 years, so the reversion is mostly land value.

How much difference is there between fee simple and leasehold discount rates?

Leasehold rates are noticeably higher, and the spread grows as the remaining term shrinks. A leasehold carries the building's operating risk, ground rent obligations, and a value that declines to zero at expiration, while the fee simple owner keeps the reversion. Support the spread with leasehold sales and investor interviews rather than a fixed rule of thumb.

Decision questions before you buy or sell

Should you sell an IOS yard leased or vacant?

It depends on who will pay more. A yard with a durable lease to a creditworthy tenant sells to investors on its income, usually at a lower cap rate than an unleased yard. A vacant yard sells to owner-users or investors who price in lease-up risk, closer to land and replacement value. When an owner-user needs the site, vacant can win; otherwise, leasing before you sell usually maximizes price.

Should you raise below-market IOS rents before selling?

Often, if the lease allows it at renewal. Buyers pay for in-place income, so each dollar of added net rent is worth roughly that dollar divided by the cap rate. The trade-off is risk: pushing rent can trigger a vacancy right before a sale. If the gap is large but the lease runs several more years, buyers will still pay something for the upside, though less than for income already in place.

What happens if the appraisal comes in below the agreed IOS price?

The lender sizes the loan off the lower value, so the buyer must add equity, renegotiate or walk away under an appraisal contingency. IOS appraisals lean on closed sales of comparable yards, which can be thin. Supplying the appraiser with lease details, usable-acreage surveys and verified comps is the best defense. See IOS financing.

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Carson Jones

Carson Jones

Founder · Passive Investments · eXp Commercial

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.

This article is for informational and educational purposes only and should not be considered tax, legal, accounting, or investment advice. Tax laws are complex and change frequently. Always consult your CPA, attorney, and financial advisor before making any financial, tax, or investment decisions. All investments and property ownership carry risk, including the potential loss of principal. Carson Jones, Passive Investments, and the author make no guarantees regarding the tax treatment, performance, or outcome of any specific investment strategy described in this article.