CRE Operating Expenses: What Landlords Really Pay Per Square Foot
If you're considering buying commercial real estate, you're probably asking a simple question: what will this property actually cost me every year beyond the mortgage payment? It's a smart question because many first-time investors focus on rent collections and overlook the real expenses that can impact cash flow.

Understanding CRE operating expenses is essential before purchasing an office building, retail center, warehouse, or mixed-use property. The more accurately you understand commercial property operating costs per square foot, the better positioned you'll be to evaluate deals, negotiate leases, and avoid unpleasant surprises after closing.
What Are CRE Operating Expenses?
Commercial real estate (CRE) operating expenses are the ongoing costs required to own, manage, and maintain a commercial property.
These expenses typically include:
Property taxes
Commercial property insurance
Repairs and maintenance
Landscaping
Utilities for common areas
Property management fees
Security services
Janitorial services
Snow removal and grounds maintenance
Operating expenses generally do not include mortgage payments, depreciation, federal income taxes, or major capital improvement projects such as replacing an entire roof or constructing a building addition.
What Do Landlords Really Pay Per Square Foot?
There is no universal operating expense figure that applies to all commercial properties.
In many markets, landlords may see annual operating expenses ranging from a few dollars per square foot for newer industrial properties to significantly higher amounts for office buildings and properties with extensive amenities. Factors such as location, property age, construction type, occupancy levels, and local tax rates all influence actual costs.
The best way to estimate operating expenses is by reviewing a property's historical financial statements rather than relying solely on industry averages. Every property has its own expense profile.
Why Operating Expenses Matter More Than Most Investors Realize
When people evaluate commercial real estate, they often focus on purchase price and rental income.
Those numbers matter, but expenses often determine whether a property performs well over the long term.
For example, two office buildings may generate similar rental income. However, if one building has significantly higher taxes, insurance premiums, and maintenance costs, its net operating income could be much lower.
Understanding commercial building expenses helps investors:
Forecast cash flow
Evaluate investment opportunities
Structure leases appropriately
Budget for future repairs
Improve profitability
Reduce unexpected financial surprises
Successful commercial property owners watch expenses just as closely as they watch rent collections.
Property Taxes Often Represent a Major Expense
For many landlords, property taxes are among the largest recurring operating costs.
Tax obligations vary based on:
State tax laws
County assessments
Municipal rates
Property classification
Market values
Before buying a property, review several years of tax history and determine whether a sale could trigger reassessment.
The Tax Foundation provides educational resources explaining how property tax systems vary across the country, which can be useful when evaluating investments across different markets.
Property taxes rarely decrease on their own. Investors should budget conservatively and expect future adjustments.
Commercial Property Insurance Costs Continue to Evolve
Insurance is another critical component of CRE operating expenses.
Premiums depend on several factors, including:
Building age
Construction materials
Property location
Occupancy type
Claims history
Replacement cost
Weather-related exposures
For example, an office building generally presents different risks than a warehouse storing contractor equipment.
Repairs and Maintenance Add Up Over Time
Every commercial building requires ongoing maintenance.
Ignoring small issues today often creates larger expenses tomorrow.
Common maintenance expenses include:
HVAC servicing
Plumbing repairs
Electrical repairs
Roof maintenance
Exterior painting
Parking lot repairs
Elevator servicing
Cleaning services
Building age often plays a major role in maintenance expenses.
A newer warehouse may require relatively little upkeep, while an older multi-tenant office building could require substantial annual maintenance spending.
Before buying, review maintenance records whenever possible. They often reveal future expenses before they become your problem.
Utilities Can Impact Profitability
Utility costs vary significantly depending on property type and lease structure.
Landlords may be responsible for:
Water
Sewer
Electricity
Natural gas
Exterior lighting
Trash collection
In multi-tenant buildings, common-area utility expenses can become substantial.
Energy-efficient upgrades may help reduce costs over time, particularly in older buildings with outdated systems.
Some commercial property owners explore resources from the U.S. Department of Energy to identify opportunities for reducing operating expenses through improved building efficiency.
Landscaping and Exterior Maintenance Shouldn't Be Overlooked
Many first-time investors underestimate the cost of maintaining a property's exterior appearance.
Common expenses include:
Lawn care
Tree trimming
Irrigation repairs
Parking lot sweeping
Snow removal
Sidewalk maintenance
Exterior lighting repairs
These costs may appear minor individually, but they can become meaningful annual expenses when measured on a per-square-foot basis.
For retail centers and professional office properties, curb appeal directly impacts tenant satisfaction and leasing activity.
Property Management Expenses
Not every owner has the time or expertise to self-manage commercial real estate.
Professional property management companies may handle:
Rent collection
Tenant relations
Maintenance coordination
Vendor management
Lease administration
Financial reporting
Management fees vary depending on property size, complexity, and service requirements.
While management services increase expenses, they can also improve operational efficiency and tenant retention.
How Property Type Impacts Operating Costs
Not all commercial properties have the same expense profile.
Industrial Properties
Industrial buildings often have relatively lower operating expenses.
Many warehouse and industrial tenants assume responsibility for portions of maintenance and utility costs under lease agreements.
However, industrial property owners still face expenses related to:
Roof systems
Parking lots
Insurance
Structural repairs
Exterior maintenance
Office Buildings
Office assets often generate higher operating expenses.
Examples include:
Cleaning services
Elevators
Shared utilities
Security systems
Lobby maintenance
Common-area improvements
Office tenants generally expect a higher level of service, which increases operating costs.
Retail Properties
Retail centers frequently require ongoing spending on:
Landscaping
Parking lot maintenance
Exterior lighting
Signage
Common-area maintenance
Many shopping centers recover some of these costs through tenant lease provisions.
Explore more in our blog: Retail vs. Industrial vs. Office: CRE Returns Compared Honestly
Gross Leases vs. Triple-Net Leases
One of the most important factors affecting landlord expenses is lease structure.
Gross Leases
Under a gross lease, the landlord often pays most of the property's operating expenses.
The tenant pays a fixed rental rate, and the owner assumes much of the financial risk associated with rising operating costs.
Triple-Net (NNN) Leases
Under a triple-net lease, tenants are typically responsible for paying:
Property taxes
Building insurance
Maintenance expenses
This structure can create more predictable operating costs for landlords.
When evaluating a commercial property, investors should carefully review lease terms because lease structure significantly affects profitability.
Learn more in our blog: Triple Net Leases for Small Investors: The Passive-Income Reality
Hidden Expenses That Surprise New Landlords
Even experienced investors occasionally underestimate expenses.
Some commonly overlooked costs include:
Emergency HVAC replacements
Roof leaks
Legal fees
Accounting expenses
Vacancy preparation costs
Security upgrades
Environmental inspections
Increased insurance premiums
These expenses may not occur every year, but they should still be part of long-term financial planning.
A realistic budget accounts for both recurring and unexpected costs.
What Most People Get Wrong
The biggest misconception about commercial real estate is that rental income tells the whole story.
It doesn't.
We've seen properties with average rents outperform properties with higher rents because ownership carefully controlled operating expenses. We've also seen investors purchase properties that appeared profitable on paper, only to discover that insurance, maintenance, and tax costs were much higher than expected.
Commercial real estate success often comes down to expense management as much as rent collection. The investors who understand their numbers typically make better long-term decisions.
How to Analyze Operating Expenses Before Purchasing a Property
Before buying any commercial building, carefully review historical operating data.
Pay attention to:
Expense Trends
Are costs rising every year?
Understanding expense growth can help you forecast future performance.
Deferred Maintenance
Some owners postpone repairs before listing a property for sale.
Look closely at:
Roof condition
HVAC age
Parking lot condition
Plumbing systems
Electrical systems
Deferred maintenance can quickly turn into major expenses after closing.
Insurance Reviews
Request updated insurance estimates before relying on seller projections.
Current market conditions may differ substantially from what previous owners paid.
Property Tax Considerations
Research whether property taxes may change after the transaction closes.
In some jurisdictions, reassessments can significantly alter future expenses.
Insurance and Licensing Reality Check
Commercial property ownership comes with risk, and insurance is a critical part of protecting the investment.
Depending on the property and operations involved, owners often consider:
Business interruption coverage
Equipment breakdown coverage
Umbrella liability coverage
Landlord liability protection
Coverage needs vary based on occupancy, building characteristics, tenant operations, and local requirements.
Commercial property owners should work with a licensed insurance professional to evaluate their specific risks..
Licensing and regulatory requirements vary by state, county, and municipality. Depending on the situation, owners may need business registrations, rental licenses, occupancy approvals, or local permits.
Always verify requirements with local authorities, legal counsel, accountants, or other qualified professionals.
Final Thoughts
Understanding CRE operating expenses is one of the most important parts of commercial real estate investing.
While purchase price and rental income often receive the most attention, long-term performance usually depends on managing expenses effectively. Property taxes, insurance, maintenance, utilities, landscaping, and management costs all affect what a landlord truly pays per square foot.
There is no single benchmark that applies to every property. Costs vary widely based on location, building type, lease structure, and property condition.
Smart investors focus on actual operating history, conservative budgeting, and realistic expectations. Doing so can help avoid costly surprises and create a stronger foundation for long-term property ownership.
Get the Right Insurance Before Costs Become Claims
Owning commercial property means managing risk as well as expenses. Whether you own a warehouse, office building, retail center, or mixed-use property, the right insurance program can play an important role in protecting your investment.
Wexford Insurance works with commercial property owners, contractors, and service businesses nationwide to help identify practical coverage solutions based on real-world risks and exposures.
If you're buying a property, reviewing your current policies, or comparing coverage options, we're happy to help.
Request a free quote today at https://www.wexfordins.com/business-quote or call 317-942-0549 to speak with a licensed insurance professional.
Frequently Asked Questions
What are CRE operating expenses?
CRE operating expenses are the ongoing costs required to own and manage commercial real estate, including taxes, insurance, maintenance, utilities, and property management.
How do landlords calculate operating expenses per square foot?
Landlords generally divide total annual operating expenses by the property's rentable square footage to determine the cost per square foot.
What is usually the largest operating expense for commercial property?
Property taxes and insurance are often among the largest recurring expenses, although this varies by location and property type.
Do operating expenses include mortgage payments?
No. Mortgage payments are considered financing expenses rather than operating expenses.
Can tenants pay operating expenses?
Yes. Under triple-net lease arrangements, tenants commonly pay some or all of the property's taxes, insurance, and maintenance expenses.



