Operating Expense Exclusions in a Commercial Lease

A tenant’s biggest lever in commercial lease negotiations is which operating expense exclusions come out of the CAM (Common Area Maintenance) or NNN (triple net) pass-throughs. Capital improvements, management fees above a threshold, leasing commissions, insurance on other tenants’ property, and major replacements are often negotiated out—saving the tenant thousands per year while shifting risk back to the landlord.

What goes into CAM, and what doesn’t

In a NNN or CAM lease, the landlord invoices tenants monthly or annually for their share of common area operating costs. A typical CAM includes:

• Utilities (electricity, gas, water) for common areas
• Janitorial and trash removal
• Landscaping and grounds maintenance
• Security and parking lot sweeping
• Insurance for the building shell and common areas
• Repairs to hallways, roofs, parking structures, and elevators

The base rent stays separate; CAM is additive and often grows faster than base rent, especially in older buildings or during periods of rising labor and energy costs.

What is typically excluded depends on lease language, local custom, and tenant bargaining power:

Capital expenditures: the biggest battleground

The line between “maintenance” and “capital expenditure” (CapEx) is where most lease disputes happen. A $500 sealant job on a roof is maintenance (CAM). A $150,000 re-roofing is a capital expenditure (excluded). But what about a $20,000 HVAC compressor replacement? A $40,000 parking lot resurface?

The standard dividing rule is useful life and dollar threshold:

• Under $5,000: Usually CAM, even if it is a replacement.
• $5,000–$25,000: Depends on asset life. If the item is expected to last 20 years (a roof), it is capital; if 3–5 years (HVAC compressor), it leans maintenance.
• Over $25,000: Capital expenditure; excluded from CAM.

Leases often set an explicit threshold (“capital expenditure means any single project exceeding $15,000”) to avoid dispute. Smart tenants negotiate exclusions for large replacements: roofing, parking resurfacing, major HVAC and electrical upgrades, and structural repairs. Landlords fund these out of capital reserves or long-term financing, not tenant CAM.

Why this matters: A 100,000-square-foot office building might have a base CAM of $6–$8 per square foot annually. A roof replacement pushes that to $10+ per square foot in year one. A tenant on a 10-year lease avoids thousands in unexpected bills if capital work is excluded upfront.

Management fees and administrative costs

Most buildings have a property management company (sometimes the landlord itself) overseeing maintenance, vendor relationships, and CAM collection. The management fee is a percentage of gross CAM—typically 4–6%—and is passed to tenants unless excluded.

A management fee of 5% on a $800,000 CAM bill adds $40,000 in annual costs to tenants. Sophisticated tenants negotiate:

• A cap on the fee (“management fee shall not exceed 5% of CAM, not to exceed $X annually”).
• Exclusion of outsized management fees (“if management fee exceeds $Y, tenant is not responsible for the excess”).
• Management fee not applied to capital items (“management fee applies only to recurring operating expenses, not CapEx”).

Some leases also exclude reserves set aside by the landlord for future capital work. A landlord might invoice 10% above actual CAM to build a capital reserve; savvy tenants delete this or cap it.

Leasing commissions and tenant acquisition costs

When a building is leased up, brokers earn commissions (typically 4–6% of the lease value, split between landlord and tenant brokers). Some landlords attempt to pass these to CAM. Standard lease language excludes them: leasing commissions are landlord costs of maintaining occupancy, not tenant-attributable operating expenses.

Similarly, costs incurred to market the building, advertise vacant space, or complete a lease (legal fees specific to the lease agreement) are typically excluded. The tenant pays rent; the landlord absorbs acquisition costs.

Insurance and loss allocation

Insurance costs are complex. Most leases split insurance as follows:

• Building shell and structure: Landlord’s insurance, excluded from CAM.
• Common area liability: Usually in CAM.
• Tenant’s interior and property: Tenant’s own insurance; not CAM.
• Loss allocation: If a pipe bursts and damages adjacent tenant space, the losing tenant recovers from their insurer or a negligent party; it does not flow through CAM.

Some landlords try to pass property insurance premiums to CAM if the building is underinsured or if a tenant’s negligence drove up rates. Tenants typically exclude or cap their exposure: “Tenant shall not be liable for any increase in insurance premiums due to other tenants’ claims or operations.”

Utilities and sub-metering

In larger buildings, utilities are often sub-metered by tenant or by zone. A tenant with its own meter pays for electricity directly to the utility, not through CAM. Common areas (hallways, lobbies, mechanical rooms) are metered centrally and allocated to all tenants based on square footage.

Tenants in older buildings with no sub-metering often negotiate an exclusion or cap: “Utility costs in excess of $X per square foot per year shall be borne 50% by landlord, 50% by tenant.” This limits the tenant’s exposure to rate spikes or landlord inaction on energy efficiency.

Practical negotiation tactics

Larger tenants and longer leases secure broader exclusions. A 50,000-square-foot office tenant signing a 10-year deal has leverage; a 2,000-square-foot retail tenant on a 3-year lease typically accepts standard CAM.

Key exclusions to push for:

1. All capital expenditures above a threshold ($10K–$25K, depending on building age and tenant size).
2. Management fees capped at 5% of CAM and not applied to capital items.
3. Leasing commissions and tenant acquisition costs.
4. Landlord’s reserves for future capital work (or cap them at 1–2% of CAM).
5. Increases in insurance due to other tenants’ actions or the landlord’s underinsurance.
6. Major building systems replacements (roof, HVAC, electrical, structural) as capital, not CAM.
7. Utilities sub-metered if possible; if not, capped and escalated slowly.

Landlord’s perspective: Excluding too much constrains cash flow and the net operating income (NOI) the landlord can pledge to lenders. Lenders demand stable, tenant-paid CAM to cover debt service. If tenants exclude major CapEx, the landlord must fund it from reserves or refinancing. This tension is why negotiation is necessary: both parties want predictable, controllable costs.

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