Is a lease clause requiring tenants to pay for common area maintenance (CAM) enforceable?

Yes, CAM clauses are generally enforceable if clearly defined in the lease. Learn how to audit your contract for hidden costs using TermScore today.

June 8, 2026TermScore Research676 words

Is a lease clause requiring tenants to pay for common area maintenance (CAM) enforceable?

Yes, lease clauses requiring tenants to pay for common area maintenance (CAM) are generally enforceable in commercial real estate. Courts uphold these provisions as long as the lease clearly defines the scope of expenses, the method of calculation, and the tenant’s pro-rata share, provided the terms do not violate local statutes or public policy.

The Legal Basis for CAM Enforceability

In commercial leasing, the principle of freedom of contract prevails. When a tenant signs a lease, they are agreeing to a specific allocation of risk and cost. CAM clauses are standard in Triple Net (NNN) leases, where the tenant assumes responsibility for property taxes, insurance, and maintenance costs in addition to base rent.

Key Requirements for Enforceability

  • Specificity: The lease must explicitly list what constitutes a "common area" and which expenses are "recoverable."
  • Calculation Method: The formula for determining the tenant's pro-rata share (usually based on square footage) must be clearly stated.
  • Reasonableness: While courts rarely police the "fairness" of a negotiated price, they will invalidate clauses that are unconscionable or based on fraudulent accounting.

Key takeaway: If your lease lacks a precise definition of "Operating Expenses," you are vulnerable to "CAM creep," where landlords pass through capital improvements or administrative overhead that should be the landlord's responsibility.

Action Item: Review your lease for an "Exclusions" list. If the lease does not explicitly exclude capital expenditures, roof replacements, or structural repairs, you may be liable for these costs.

Common Red Flags in CAM Clauses

Not all CAM clauses are created equal. Sophisticated landlords often bury "hidden" costs within the CAM definition. Watch for these red flags:

Expense TypeStatusRisk Level
Routine LandscapingStandardLow
Parking Lot ResurfacingCapital ExpenseMedium
Landlord's Corporate OverheadNon-recoverableHigh
Structural RepairsLandlord ResponsibilityHigh

The "Capital Expenditure" Trap

Many disputes arise when landlords attempt to amortize major capital improvements (like a new HVAC system or roof) and pass the cost to tenants under the guise of CAM. Unless the lease specifically allows for the amortization of capital improvements over their useful life, these are often considered the landlord's sole responsibility.

Action Item: Ensure your lease limits CAM increases to a specific percentage (e.g., 3-5% cap) per year to protect against sudden, massive spikes in operating costs.

How to Audit CAM Charges

If you suspect your CAM charges are inflated, you have the right to verify the data. Most commercial leases contain an "Audit Right" clause.

  1. Request an Itemized Statement: Demand a detailed breakdown of all operating expenses for the previous fiscal year.
  2. Verify the Pro-Rata Share: Divide your square footage by the total leasable area of the building to ensure your percentage matches the lease agreement.
  3. Compare Against Industry Standards: Use BOMA (Building Owners and Managers Association) standards to see if the costs are in line with similar properties in your region.
  4. Exercise Audit Rights: If discrepancies exceed a certain threshold (usually 5%), the landlord should be required to pay for the cost of your audit.

Key takeaway: Always preserve your right to audit. If your lease does not include an audit provision, you may have no legal mechanism to challenge the landlord's accounting.

Action Item: Set a calendar reminder 60 days after the end of the fiscal year to request your annual CAM reconciliation statement.

Jurisdictional Nuances

While CAM clauses are generally enforceable, state laws can impact how they are interpreted. For example, in California, certain "pass-through" costs are heavily regulated under commercial landlord-tenant law. In New York, courts strictly construe the language of the lease; if a cost is not explicitly mentioned as a recoverable expense, the landlord often loses the right to charge for it.

Action Item: Consult with local counsel if your CAM charges include significant "administrative fees" or "management fees," as some jurisdictions cap these at a percentage of the base rent.

Streamlining Contract Analysis with TermScore

Manually reviewing a 100-page commercial lease to identify hidden CAM liabilities is time-consuming and prone to human error. TermScore uses advanced AI to instantly scan your contracts, flagging ambiguous CAM definitions, missing audit rights, and unfavorable expense caps. By providing an automated risk assessment, TermScore ensures you understand your financial exposure before you sign, allowing you to negotiate from a position of strength and clarity.

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