How is commercial real estate valued?
Most income-producing commercial property is valued by dividing its net operating income by a market cap rate, then checked against comparable sales and, for newer buildings, replacement cost. Value rises with stable, documented income, long leases to strong tenants and good condition; it falls with vacancy, short lease terms, tenant concentration and deferred maintenance.
Key takeaways
- Value equals NOI divided by the cap rate: $200,000 of NOI at a 7.5% cap rate is about $2.67 million.
- Cap rates come from recent sales of similar properties in the same market, not from national averages or your own building's numbers.
- Vacant or under-leased buildings are valued on stabilized income minus the cost, time and risk of leasing them up.
- Assessed value for property tax is not market value; in Tennessee, commercial property is assessed at 40% of the county's appraised value.
- Self storage, mobile home parks, RV parks, land and ground leases each have their own valuation habits that owners should understand before pricing a sale.
How Commercial Property Value Is Determined
Buyers of commercial real estate are buying an income stream. That is why the income approach dominates, and why the same building can be worth very different amounts depending on its leases.
What determines the value of a commercial building?
Mainly its net operating income and the cap rate buyers apply to that income. Location, building condition, tenant quality, lease terms, zoning and replacement cost all show up in one of those two numbers. Appraisers also test the result against comparable sales and, for newer buildings, against the cost to build.
What is the simplest way to estimate a commercial property's value?
Take annual rent and other income, subtract vacancy and operating expenses (taxes, insurance, maintenance, management) to get NOI, then divide by a market cap rate. For example, $180,000 of NOI at an 8% cap rate suggests about $2.25 million.
How is a rental property's value calculated from its income?
With direct capitalization (NOI divided by cap rate) for stabilized properties, or with a discounted cash flow that projects income for five to ten years plus a sale, then discounts it back to today. Discounted cash flow is used when income will change, such as a lease-up or major rollover.
What methods are used to value commercial real estate?
The income approach, the sales comparison approach and the cost approach. Income usually carries the most weight for leased property, sales comparison for land and owner-occupied buildings, and cost for new or special-purpose buildings.
Which factors have the biggest effect on commercial property value?
Location and access, NOI and how reliable it is, tenant credit, remaining lease term, rent compared with market, building age and condition, zoning and use, interest rates, and how many buyers want that property type right now.
Can you estimate a commercial property's value just by looking at it?
Only very roughly. Two identical-looking buildings can differ in value by millions depending on leases, rents, expenses and tenant credit. A visual check tells you about condition; the rent roll and operating statements tell you about value.
How should I value a building I've owned for 20 years before selling it?
Start with today's income, not your purchase price or what you have put into it. Rebuild a current operating statement, compare rents with market, note leases expiring soon, and get a broker opinion of value from someone who sells that property type locally. Long-held properties often have below-market rents, which buyers value on what they can achieve, minus the time to get there.
Cap Rates: The Number That Sets the Price
The cap rate expresses what buyers will pay for a dollar of income. A lower cap rate means a higher price for the same NOI.
What is a cap rate, and why does it matter so much?
A cap rate is NOI divided by price. It is the first-year unlevered yield a buyer receives and the quickest way to compare pricing. Because value equals NOI divided by the cap rate, a half-point change in cap rate on a $200,000 NOI property moves the value by roughly $150,000 to $200,000.
Where do I find the right cap rate to value my property?
From recent sales of similar properties in your market: same type, similar size, condition, tenant quality and lease term. Local brokers, appraisers and market reports track these. National averages are a starting point, not a substitute.
When averaging comparable cap rates, should my own property's cap rate be included?
No. Comparable cap rates are evidence of what the market pays; using your own property's implied cap rate makes the valuation circular. Use arm's-length sales of other properties, adjusted for differences.
For small apartment buildings, should value be based on gross rent multiplier, price per unit or cap rate?
Use all three, but rely on the cap rate. Gross rent multiplier and price per unit are quick screens that ignore expenses; two buildings with the same rent can have very different NOI. Buyers and lenders ultimately underwrite NOI.
Why would Class B office ever trade at a cap rate similar to multifamily?
Historically, office leases were longer and the income steadier than many observers assumed. Since 2022, though, most office cap rates have moved well above multifamily in most markets, reflecting weaker demand, higher re-leasing costs and fewer buyers. A similar cap rate today usually signals either an unusually strong office asset or a thin, unreliable comparable.
Finding Comps and Property Data
Commercial real estate has no free, reliable automated value estimate like the home-price websites. Value evidence comes from sales data, brokers and appraisers.
Is there a free online tool that estimates commercial property values the way home-price sites do?
Not a reliable one. Commercial sales are fewer, more varied and often confidential, so automated estimates are weak. The best sources are county assessor and register of deeds records for recorded sales, commercial listing and sales databases, and a broker opinion of value or appraisal.
How can I find comparable sales for a commercial building, such as a medical office?
Search recorded deeds in the county for sales of similar buildings, review closed listings on commercial platforms, and ask local brokers who specialize in that property type; many will share comps as part of a valuation conversation. Adjust each comp for size, age, location and lease status.
Assessed Value vs. Market Value
Property tax values and sale prices are measured differently and for different purposes, so they rarely match.
Is a property's assessed value the same as its market value?
No. Market value is what a buyer would pay today. Assessed value is a percentage of the county's appraised value used to calculate tax. In Tennessee, commercial and industrial property is assessed at 40% of appraised value and residential at 25%.
Why are tax assessments often so far below actual sale prices?
Because assessed value is a legal fraction of appraised value, and because counties reappraise only every few years, so appraised values lag rising markets. After a sale, the county may use the sale price at the next reappraisal, which buyers should budget for.
Vacancy, Leases and Tenant Risk
Leases are the most important document in a commercial valuation. Vacancy, short remaining terms and dependence on one tenant all reduce what buyers will pay.
How do you value a building that has been vacant for a year and is losing money?
Estimate what it will earn once leased (stabilized NOI), value that at a market cap rate, then subtract the costs of getting there: lost rent during lease-up, tenant improvements, leasing commissions, carrying costs and a profit allowance for the buyer's risk. Or value it on sales of comparable vacant buildings, often what owner-users will pay.
How should a vacant three-tenant retail building be priced?
Use a pro forma based on market rents and expenses, cap it at a market rate, and then discount for lease-up time, improvements and commissions. Buyers rarely pay full pro forma value for empty space; the size of the discount depends on how quickly similar space is leasing.
What is a strip center worth with about $114,000 of NOI and one anchor in 70% of the space?
At typical small-center cap rates of roughly 7.5% to 9%, about $1.27 million to $1.52 million, but the anchor's lease decides where in that range. A long remaining term with a strong tenant supports the lower cap rate; a lease expiring in a year or two pushes it higher because one move-out could empty most of the center.
How do you value a mixed-use building with an empty commercial unit?
Value the residential income at a residential cap rate, value the commercial space on its market rent at a commercial cap rate less lease-up costs, and add them. Blending a single cap rate hides the risk in the vacant space.
Should I lease the empty commercial unit before selling or sell the building vacant?
Lease it first if you can sign a creditworthy tenant at market rent within a reasonable time; documented income usually adds more value than the leasing cost. Sell vacant if the likely buyer is an owner-user who wants the space, or if leasing would take longer than you can wait.
Does having a tenant in place raise the sale price compared with a vacant unit?
Usually, for investor buyers, because a signed lease turns uncertain income into documented income. The exception is an owner-user buyer, who may pay more for empty space they can occupy.
What happens to an office building's value when several tenants leave at lease expiration?
NOI drops and buyers price in the cost and time to re-lease, so value can fall by much more than the lost rent alone. Owners protect value by starting renewals 12 to 18 months ahead and avoiding several expirations in the same year.
How can a brand-new building sitting empty still be worth what it cost?
Developers and lenders value it on stabilized income once leased, minus lease-up costs. The longer it stays empty, the more carrying cost and risk eat into that value. See Commercial Property Operations.
What vacancy rate should I assume when underwriting a property?
Use the market's vacancy rate for that property type and size, with a floor even when the building is fully leased; many underwriters use at least 5% for multi-tenant property, more where market vacancy or tenant turnover is higher. Single-tenant buildings are better analyzed lease by lease.
How Different Property Types Are Valued
The income approach applies to almost everything, but each property type has its own conventions that change the numbers.
Is it a mistake to buy an office building in today's market?
Not necessarily. Office is priced with wide discounts, and well-located small buildings with medical or service tenants, or a credible repositioning plan, can work. The risk is in vacancy, re-leasing cost and financing. Buy on a conservative basis and assume re-leasing will cost more and take longer. See Office Real Estate: 2026 Owner's Guide.
Which cap rate applies to a newly built office building?
The market cap rate for comparable stabilized new office, applied to stabilized NOI. Appraisers usually report three values: as is, as complete and as stabilized. The gap between them is the lease-up cost and risk.
Should I sell my warehouse now, or lease it for five years with a purchase option?
A lease with an option gives income now and a possible sale later, but it locks in the price and keeps the property off the market. Set the option price with escalations, charge a meaningful option fee, and compare the total with today's sale price and your tax plan.
What are the advantages and drawbacks of owning warehouses?
Advantages: NNN leases, low maintenance, steady demand and simple buildings. Drawbacks: tenant concentration in single-tenant buildings, roof and slab capital costs, and new competing supply in some markets. See What Is Small Bay Industrial?
How are single-tenant net lease properties valued?
By capitalizing the rent, with the cap rate set mainly by tenant credit, remaining lease term, rent escalations and the building's reuse value. A long lease to an investment-grade tenant earns the lowest cap rate; a short term or weak tenant pushes it higher.
How should a NNN ground lease investment be evaluated?
Look at ground rent and escalations, remaining term and options, tenant credit, who owns the improvements and what happens to them when the lease ends, and the underlying land value. Ground leases usually trade at lower cap rates because the landowner holds a senior position.
How do I estimate what a vacant commercial lot is worth?
Compare recent sales of similar lots, adjusted for size, zoning, utilities, access and frontage, and priced per square foot or per acre. For development land, a residual analysis works backward from what the finished project is worth, minus construction cost and profit.
How are commercial lots valued?
Mainly by sales comparison and residual land value. Zoning, utilities, traffic counts, visibility and how much of the lot is usable drive price more than raw acreage.
How do you determine the highest and best use of a commercial property?
Test which uses are legally permitted, physically possible, financially feasible and most valuable. The use that passes all four sets the value. See Highest and Best Use.
How are self-storage facilities valued?
By stabilized NOI divided by a market cap rate, with careful attention to actual collected revenue, occupancy, street rates and expenses. As of early 2026, cap rates averaged about 5.8% nationally, with wide differences by quality and market. See The 2026 Owner's Guide: Self Storage.
Does an advertised self-storage cap rate account for property taxes and management?
It should, but check. Listings sometimes omit a management fee for owner-run facilities or use taxes that will be reassessed after a sale. Buyers rebuild NOI with a professional management fee, reassessed taxes, insurance and a capital reserve.
How are storage facilities appraised in small towns with few comparable sales?
Appraisers widen the search to similar towns and regions, lean on the income approach with market rents and expenses, and support the cap rate with broader market data. Lenders may adjust loan terms when comparable evidence is thin.
What should I check when valuing a self-storage facility to buy?
Physical and economic occupancy, actual rents versus street rates, delinquency, expense ratio, competition within a few miles, expansion land, and whether management, taxes and insurance are realistic in the seller's numbers.
How should a mobile home park owned by a family for decades be valued, and should land value be added on top?
Value the park on lot-rent NOI at a market cap rate; the land is already reflected in that income, so it is not added again, except for genuinely excess land that could be sold or developed separately. As of early 2026, mobile home park cap rates averaged roughly 6.0% to 6.5%.
How do park-owned homes and side businesses like boat storage affect a park's value?
Park-owned homes are often valued separately and at a discount, because buyers prefer tenant-owned homes; heavy park-owned home income can widen the cap rate by 100 to 200 basis points. Side businesses such as boat or RV storage are valued on their own documented income.
What is the correct method for valuing a mobile home park?
Direct capitalization of stabilized lot-rent NOI, supported by comparable sales. Buyers rebuild expenses, separate home income from lot income and test whether rents are below market. See RV Parks and Mobile Home Parks Guide.
How do I set an asking price for a mobile home park?
Start with documented trailing-twelve-month NOI, apply a cap rate supported by recent park sales, and adjust for rent upside, utility billing, infrastructure condition and the share of park-owned homes. Pricing far above what the NOI supports usually delays a sale.
How do you evaluate an RV park?
Separate long-term, seasonal and nightly income, check occupancy by season, and review amenities, management and online reviews. Seasonal RV parks often trade on multiples of earnings, roughly 6 to 9 times EBITDA, rather than pure real estate cap rates.
Appraisals, Partner Buyouts and Eminent Domain
Some valuations are formal and have legal or financial consequences, so the method matters as much as the number.
How do commercial appraisals for bank loans work?
The lender orders the appraisal from an approved independent appraiser, who inspects the property and applies the income, sales comparison and cost approaches as appropriate. The report may show as-is, as-complete and as-stabilized values. Borrowers can supply leases, operating statements and comparable sales, and can ask the lender for a review if the report contains factual errors.
How should an LLC value an owner-occupied building to buy out a departing partner?
Follow the operating agreement first. If it is silent, an independent appraisal is usually fairer than a formula, because an owner-occupied building's NOI depends on rent the partners set for themselves. Appraisers typically use market rent and sales of similar buildings.
If the government takes part of my strip mall through eminent domain, how is compensation valued?
Compensation is generally based on fair market value of what is taken, and for a partial taking, any loss in value to the remaining property, such as lost parking, access or visibility. Owners usually hire their own appraiser and an eminent domain attorney rather than relying on the government's offer.
Three Valuation Scenarios With the Math
These examples are simplified illustrations, not projections for any specific property; they show how leases, vacancy and cap rates change the result.
The Long-Held Warehouse
An owner has held a 40,000 square foot warehouse for 20 years. The tenant pays $6.25 per square foot NNN, or $250,000 a year, while market rent is about $8.50. After $10,000 of non-recoverable costs, NOI is $240,000. At a 7.5% cap rate, the building is worth about $3.2 million as is.
If the lease is renewed at market rent before the sale, NOI rises to $330,000 and the value to about $4.4 million. Even after a leasing commission and a modest improvement allowance, a pre-sale renewal can add more than $1 million.
The Anchored Strip Center
A strip center produces $114,000 of NOI, with one anchor in 70% of the space. If the anchor has eight years left on its lease, buyers may apply about a 7.75% cap rate, for a value of about $1.47 million.
If the anchor's lease expires in two years, the same income may be capped at about 9%, or roughly $1.27 million. The roughly $200,000 difference is the market's price for the risk that most of the center goes dark.
The Empty Three-Tenant Building
A 6,000 square foot retail building is fully vacant. Leased at market, it would earn about $110,000 in rent and $90,000 of NOI, worth $1.125 million at an 8% cap rate.
A buyer deducts a year of lost rent ($110,000), carrying costs ($25,000), improvements at $15 per square foot ($90,000), leasing commissions ($33,000) and a 10% profit allowance ($112,500), for an as-is value of about $755,000, roughly two-thirds of stabilized value.
Eight Valuation Mistakes Owners Make
- Pricing from purchase price or money invested. Buyers pay for income and risk today, not for what the owner spent.
- Using national cap rates. Local sales of similar properties set the cap rate; averages from elsewhere mislead.
- Including your own cap rate in the comps. It makes the valuation circular and inflates confidence in the number.
- Ignoring lease expirations. A big tenant with little term left can cut value far more than its share of rent.
- Valuing vacant space as if it were leased. Buyers deduct lease-up time, improvements, commissions and risk.
- Leaving management out of NOI. Even owner-managed properties are valued with a market management fee.
- Confusing assessed value with market value. Tax values are a legal fraction of appraised value and often lag the market.
- Adding land value on top of income value. For income property the land is already in the NOI; only excess land adds separately.
Related Guides
- How Institutional Buyers Evaluate Commercial Real Estate
- Commercial Property Operations
- Valuation Terms in the CRE Glossary
- Selling a Large Commercial Real Estate Portfolio
- The 2026 Owner's Guide: Retail Real Estate
- Office Real Estate: 2026 Owner's Guide
- The 2026 Owner's Guide: Self Storage
- RV Parks and Mobile Home Parks Guide
- Industrial Outdoor Storage Valuation
- What Is My Land Worth to a Data Center?
Educational information only — not an appraisal, and not legal, tax or investment advice. Cap rates and ranges are general market indications as of October 17, 2026 and vary by market and property; a formal appraisal or broker opinion of value is needed for any specific property.
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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 through a nationwide network of qualified buyers, family offices, institutional investors, and top-tier developers.