Operating Expenses (OpEx): NYC Office Leasing, Explained

How operating expense pass-throughs work in New York leases

Most Manhattan office leases are gross leases with an escalation clause rather than true triple net deals: the quoted rent covers costs as they stood when the term began, and increases above a base year, usually the first calendar year, pass through as additional rent. Your exposure is your pro rata share, your rentable square footage over the building's total, applied to every dollar spent above the base-year figure.

The definition does the real work, because the drafting decides whether capital improvements, a percentage-based management fee, or the cost of leasing other tenants' space rides along with the cleaning, payroll, utilities, insurance and repairs at the core. In the smaller loft buildings we work in daily, landlords often skip the accounting and charge a fixed annual percentage escalation instead, frequently the cleaner deal for a tenant taking a single floor.

A worked example of the base year

Take a lease signed this year with the base year set to the current calendar year. In year one you pay the quoted rent and nothing more. In year two the cleaning contract renews higher, insurance premiums move, and payroll grows; whatever the building's total exceeds the base-year total, you pay your pro rata share of the excess alongside the rent.

Now set it against the rent itself. The citywide median asking rent on our book is $75 per square foot per year, quoted before escalations, and a pass-through that adds even a modest percentage compounds through a five or ten year term because the base year never moves while the building's costs generally do.

What is negotiable, and what we push on

Almost every element of the escalation clause is negotiable before signing and almost none after. On a tenant-only mandate we raise the same points in nearly every deal:

• A full, honest base year: the first complete calendar year, computed as if the building were fully occupied and serviced.
• Exclusions in writing: capital improvements unless amortized and cost-saving, ground rent and financing costs, leasing commissions for other tenants' space, and fines the landlord earns on its own conduct.
• A cap or fixed-dollar definition on the management fee, because a percentage of an inflatable expense pool rewards the landlord for spending.
• An audit right with a workable window, with the audit cost shifting to the landlord when the overstatement proves material.

None of these asks costs the landlord anything at signing, which is precisely why they are winnable.

Where tenants lose money

The most common trap is the compromised base year. A term starting midyear can produce a stub base year covering a few months of expenses, and a base year set while the building ran light on services makes the return to normal operations read as an increase you pay for. Both are fixable in drafting and neither afterward.

The second trap is capital work dressed as maintenance, a lobby renovation billed through as repairs that moves the cost of improving the landlord's asset onto whoever is in occupancy that year. The quietest trap is procedural: audit rights usually expire, sometimes within a year of the statement arriving, so review each statement when it lands, not when the lease ends. We see tenants discover years of overstatement at renewal, after the window to contest most of it has closed.