Why Rising Rents May Not Protect Commercial Property Returns

A building can collect more rent and still leave its owner with less money. The extra income may be absorbed by the building's bills or a more expensive loan. The building can also lose value, reducing what the owner could receive from a sale even while tenants are paying more.

An owner's result depends on the cash left after bills and financing, as well as changes in the value of the owner's stake in the building. Property value itself means the estimated price the building could sell for. Higher rent can improve income without protecting that sale price.

The distinction matters in the office market. On October 23, 2026, CBRE, a commercial real estate services firm, reported that average United States (US) office asking rents had risen 3.1% over the past year, to $37.95 per square foot.¹

Recent price gains tell only part of the return story

Commercial property prices have regained some ground. Green Street's Commercial Property Price Index (CPPI) rose 4.7% in the 12 months to September 2026, a period that included a small 0.1% decline in September itself.² The annual figure describes a recovery over that year; the monthly dip alone does not establish a new downturn.

Property prices are also only one component of a return. A separate measure, the Property Index from the National Council of Real Estate Investment Fiduciaries (NCREIF), tracks property-level returns for institutional investors, such as pension funds. It combines income after property operating expenses with changes in value and excludes the effect of borrowing. The index returned 5.00% over the four quarters to June 2026, its best four-quarter result since late 2022. Most of the latest quarter's return came from income rather than appreciation.³ That 5.00% is therefore a total property return, not a 5.00% increase in prices or rents.

Higher rent does not all become income for the owner

The rent arriving each month is the starting point. Insurance, property taxes, repairs, utilities and on-site labor all have to be paid. What remains of rent and other revenue after those property-level operating costs is net operating income, or NOI. When expenses rise faster than revenue, NOI grows more slowly than revenue and can fall even while rents rise.

The recent cost figures show a mixed picture, rather than a uniform increase in every owner's bills. State and local property tax collections rose about 2% in the four quarters to June 2026, based on Census Bureau data in Federal Reserve Economic Data (FRED), the St. Louis Fed's database. Total collections do not measure the increase in an individual building's tax bill.⁴ Marsh reported that US commercial property insurance rates fell 10% in the third quarter (Q3) of 2026, while US casualty rates rose 6%.⁵ Those changes cannot simply be subtracted from rent growth: the expenses have different weights in each building's budget.

The two insurance measures cover different risks. Property insurance covers the building and other insured property; casualty coverage includes liability, such as claims involving an injury on the premises. Lower property insurance rates can ease the owner's costs after several years of sharp increases, while higher liability rates can increase another expense. A building's premium also depends on its coverage and risk, so the market rate change need not equal the change in its insurance bill. Where a lease passes these costs to tenants, the immediate benefit or burden may instead fall on them.

Brett Rentmeester of WindRock Wealth Management, an advisor in the Wealthion network, described another cost pressure in an interview published October 23, 2026. His own firm's health insurance renewal came with a 22% increase. He presented that as one firm's experience, rather than a national figure.⁶ Benefit costs can add to a property owner's labor bill where the owner bears the cost of on-site staff.

Even NOI is not the cash an owner finally keeps. Replacement roofs, building systems and tenant improvements require capital spending outside NOI, while loan payments create a further claim on cash. A rent increase can therefore improve the building's revenue without producing the same increase in the owner's spendable income. There is then a separate question: what is that income worth to a buyer?

Why buyers may pay less for a building that earns more

A buyer pays for the income a property is expected to generate. If buyers demand a higher annual income yield on their purchase, they offer a lower price for a given amount of NOI. That relationship is expressed through the capitalization rate, or cap rate: annual NOI divided by the property's value. Rearranging it gives a rough valuation, NOI divided by the cap rate.

Borrowing costs and bond yields help shape the return buyers require, although cap rates do not move in lockstep with either. CBRE found average cap rates broadly flat in the first half of 2026, when the 10-year Treasury yield peaked at 4.67% in May. More respondents nevertheless expected cap rates to rise than in the previous survey.⁷ By October 23, the Treasury yield had reached 5.00%, according to the Federal Reserve.⁸ A higher Treasury yield is not itself proof that property cap rates have risen or overwhelmed rent growth.

The financing conditions help explain why transactions can be difficult to agree. In CBRE's survey, the median respondent said the 10-year Treasury yield would need to fall to 3.75% to revive deal volume, well below its level at the time.⁷ Green Street's co-head of strategic research, Peter Rothemund, expressed the price risk conditionally: "If this rise in yields sticks, property prices are likely to go down."²

When fewer buildings sell, there are fewer completed deals to establish current prices, and appraisals can be slower to adjust. NCREIF's second-quarter 2026 appraisal-based cap rate was 4.63%, compared with 5.66% for properties that actually sold.³ Those groups contain different properties, so the gap does not directly measure how far appraisals lag. It does show why an appraisal and the evidence from completed sales can give different impressions of value.

The consequence for rent growth is straightforward: more income supports a higher value only if the price buyers pay for each dollar of that income does not fall enough to offset it. The following example shows how little the required yield needs to change.

How a 4 percent rent rise can leave the owner with less cash

One hypothetical building makes the relationship easier to see. These figures illustrate the arithmetic, rather than a real property or market. A building collects $1.6 million in annual revenue and spends $600,000 on operating costs, leaving $1.0 million in NOI. At a 5.0% cap rate, its value is $20.0 million.

Now rents rise 4% and operating costs rise 6%. Assuming the rent increase lifts total revenue by the same percentage, revenue reaches $1.664 million and costs reach $636,000. NOI improves 2.8% to $1.028 million. But if buyers now require a 5.5% cap rate, the value falls to about $18.7 million, a 6.5% decline. The building earns more income yet is worth less.

A smaller cap rate move would cancel the increase in property value supported by the higher NOI. At 5.14%, just 14 basis points, or 0.14 percentage points, above the original rate, the higher NOI supports only the original $20.0 million value.

Borrowing adds another pressure. Suppose the owner originally financed the building with a $12 million interest-only loan at 4%, equal to 60% of its value. Annual interest was $480,000, leaving $520,000 in cash flow after interest, before capital expenditure and other owner-level costs.

At maturity, suppose a new lender offers the same 60% loan-to-value ratio, now applied to the lower valuation, at 6.5%. Using the unrounded property value, the new loan is about $11.2 million. The owner must contribute roughly $785,000 to repay the old loan. Annual interest rises to about $729,000, leaving around $299,000 in cash flow after interest, a drop of about 42%. The higher rent has not offset the increase in annual interest, and the lower valuation requires additional cash at refinancing. That cash repays debt; it is not an additional loss in property value. The 42% measures the fall in annual cash flow after interest, rather than the owner's total investment return. This simplified refinancing excludes principal amortization, fees and additional lender constraints.

Why refinancing can absorb a rent increase

The example's rent increase leaves less cash because refinancing raises the interest bill. When that pressure arrives depends on the loan. A fixed-rate loan keeps its existing rate until maturity, while a floating-rate borrower feels changes sooner, subject to reset terms and any interest rate cap. Fixed-rate debt protects the existing interest rate, not the property's market value or operating costs.

That is a sizeable issue in 2026. The Mortgage Bankers Association (MBA) estimated that $875 billion of commercial and multifamily mortgages would mature during the year, about 17% of the $5.0 trillion outstanding. By property type, the shares were highest for hotels at 30% and industrial at 23%. Among lender categories, 25% of balances in commercial mortgage-backed securities (CMBS) and other securitizations were due, compared with only 4% of agency-backed multifamily and health care mortgages.⁹

Banks and other depositories held the largest single dollar amount coming due: $396 billion, or 21% of their balances. The MBA noted that most loans repay some principal over time, so the amounts outstanding at maturity would generally be lower than those figures.⁹

Extensions have given some owners more time. The Federal Reserve's May 2026 Financial Stability Report said they had limited forced sales so far, but warned that "this option may be increasingly limited going forward," especially in the non-agency CMBS market.¹⁰ An extension postpones refinancing without necessarily restoring the building's income or value.

The Fed's pricing figures add context. Inflation-adjusted commercial real estate prices fell 1.5% from December 2024 to December 2025, compared with a long-run average gain of 2.6% a year. Cap rates at purchase had risen to just below their historical average.¹⁰ For a borrower refinancing against a weaker valuation, a rent increase may provide only part of the cash needed to meet the new terms.

Rent growth varies by sector

Rent growth also varies across sectors. The comparison below shows what tenants are being asked to pay.

Sources: rents ¹, ¹¹, ¹². Rent changes have different measurement windows.

Office asking rents also differ from what an owner actually collects after concessions. A higher advertised rent can coexist with vacancies or incentives that limit the improvement in cash income. CBRE nevertheless reported stronger tenant demand: national vacancy was 18.2% in the third quarter of 2026, the fifth consecutive quarterly decline, alongside a tenth consecutive quarter of positive net absorption, meaning occupied space increased.¹ Better demand can help income, but a building financed at an earlier, higher valuation may still face a refinancing gap.

Multifamily owners face a different obstacle: weak rent growth in many markets. Yardi Matrix reported that 14 of the top 30 metros had negative year-over-year rent growth in September 2026, led by Austin, Houston and Denver.¹² Where new supply is still being absorbed, owners have little extra rent to cushion other costs.

Loan delinquencies show when payments are being missed

A delinquent loan has fallen behind on required payments. That is relevant to the owner's finances, but it is not a measure of investment return: an owner can earn a weak return, or lose property value, while making every loan payment.

Monthly CMBS reporting offers a frequent view of those payment problems. Kroll Bond Rating Agency (KBRA) reported a 7.7% delinquency rate for KBRA-rated US private-label CMBS in September 2026, with office distress at 17.6%. Office distress combines delinquent loans with loans that remain current but are in special servicing.¹³ Trepp's August 2026 delinquency figures allow a separate comparison across property types.¹⁴

Source: Trepp, CMBS delinquency report for August 2026.¹⁴ These rates cover the relevant CMBS loans, rather than all properties in each sector.

Office had the highest delinquency rate in this comparison and industrial the lowest. Leverage, loan terms and maturity dates also affect whether a borrower can pay. These figures measure financing stress, rather than the owner's return from rent.

When higher rents have more room to support returns

Rents still provide an important source of protection. Many leases include annual increases, some linked to inflation. Apartments, hotels and self-storage reset rents relatively frequently, giving owners more opportunities to respond to rising prices than long office leases allow. That flexibility helps most when tenants can absorb the increase and competing space is limited.

Rentmeester made that case while acknowledging the financing pressure. In his October 23, 2026 interview, he argued that higher rates hurt borrowers, but inflation can also support rents over time. He also said that commercial property is not one market, pointing to particular pressure on offices in major cities.⁶

Slower construction could support that position. CBRE reported that US industrial completions year to date were 17% below the same point in 2025, with vacancy at 6.4% in the third quarter of 2026.¹¹ The office construction pipeline was 84% below its 2020 peak.¹ Less new space can reduce future competition, although it does not immediately fill existing vacancies.

Owners with low leverage, long-dated fixed-rate debt or no near-term maturities also face less immediate refinancing risk.

What rising rents can and cannot protect

Higher rents can support commercial property returns, but the benefit depends on how much becomes operating income, what buyers will pay for that income and what the owner owes. The worked example connects those effects: a 4% rent increase still leaves less cash after refinancing because the interest bill has risen, while a higher cap rate reduces the building's value.

Rent growth does more for an owner when the extra money survives the bills and loan payments, and buyers continue to place a similar value on that income. It can then support both cash flow and property value. Where those conditions do not hold, higher rent alone may not protect the owner's return.

Frequently asked questions

What is a cap rate? A capitalization rate is a property's annual net operating income divided by its value, expressed as a percentage. A higher cap rate means a lower price for the same income.

Why can values fall when rents rise? Rent growth may be absorbed by operating costs. Even if NOI increases, the property's value falls if the cap rate rises by a larger percentage than NOI grows.

What is a maturity wall? It is a large volume of loans coming due within a short period. The MBA estimated that $875 billion of commercial and multifamily mortgages would mature in 2026.⁹

Is all commercial real estate under the same pressure? No. Industrial loans had a 1.14% CMBS delinquency rate in August 2026, compared with 12.00% for office.¹⁴ Rent trends, supply and debt structures also differ across property types.

Do inflation-linked leases solve the problem? They can help rental income keep pace with costs, depending on the lease terms and the expenses involved. They do not prevent losses if cap rates or refinancing costs rise enough to outweigh the income gain.

Sources

¹ Q3 2026 US Office Market Report. CBRE, October 23, 2026; vacancy, asking rents, pipeline. ² Waiting For Price Clarity. Green Street, October 6, 2026; September index and Rothemund quote. ³ NCREIF Property Index 2Q 2026. NCREIF, July 25, 2026; returns and cap rates. ⁴ State and Local Property Tax Revenue. Census Bureau data via FRED (aggregator), through Q2 2026; ~2% four-quarter rise (Wealthion calculation). ⁵ Global Commercial Insurance Falls 5% in Q3 2026. Marsh, October 21, 2026. ⁶ Brett Rentmeester, original Wealthion interview, October 23, 2026; rents, inflation and business cost pressures. ⁷ US Cap Rate Survey H1 2026. CBRE, August 12, 2026. ⁸ H.15 Selected Interest Rates. Federal Reserve, released October 29, 2026; 10-year yield 5.00% on October 23. ⁹ 17 Percent of Commercial and Multifamily Mortgage Balances to Mature in 2026. MBA, February 9, 2026. ¹⁰ Financial Stability Report, May 2026. Federal Reserve, May 8, 2026. ¹¹ Q3 2026 US Industrial & Logistics Market Report. CBRE, October 23, 2026. ¹² US Multifamily Sector Closes Q3 With Gains. Yardi Matrix, October 7, 2026. ¹³ CMBS Loan Performance Trends: September 2026. KBRA, September 30, 2026. ¹⁴ Trepp, CMBS delinquency report for August 2026; property-type delinquency rates.

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