Modified Gross Lease
Modified Gross Lease in Practice
A 20,000 square foot office tenant signs a modified gross lease with a base year expense stop of $8.50 per square foot. Two years later building expenses run $9.25 per square foot, so the tenant reimburses the $0.75 increase, or 20,000 x $0.75 = $15,000 for the year. The landlord absorbed the first $8.50 per foot but is protected against expense growth above the base year, which is exactly the protection lenders look for at underwriting.
Modified Gross Lease: What the Market Actually Requires
Modified gross covers a wide spectrum, and the label on the lease means little. In office, the standard version is a base year stop: the landlord pays expenses at the level of the lease's first year, and the tenant reimburses its share of increases above that base. In industrial, the common variant is often called industrial gross, with the tenant paying utilities and janitorial directly plus increases in taxes and insurance. Every allocation is negotiated, so two modified gross leases in the same building can hit NOI very differently.
Lenders respond by rebuilding recovery income lease by lease. Underwriters abstract each lease's expense clauses, model the reimbursements the language actually supports, and compare that against what the borrower has collected; ambiguity gets resolved against the borrower. Three details drive the outcome. First, base year resets: renewals that refresh the base year wipe out accumulated recoveries and quietly cut NOI. Second, gross-up provisions: leases that let the landlord calculate variable expenses as if the building were 95% occupied protect recoveries during vacancy, and institutional lenders check for them. Third, collection slippage: if leases permit $180,000 of recoveries but the trailing twelve months show $140,000 collected, most lenders underwrite $140,000. Banks tolerate messier rent rolls when the sponsor signs recourse; CMBS and life insurance companies want clean, documented recovery schedules before they fund.
The practical play for owners is to tighten recovery language at every rollover, moving tenants toward net structures or lower stops, and to fix documentation before financing. A recovery audit that reconciles lease language, billings, and collections is one of the cheapest ways to defend NOI ahead of a loan marketing process, and it removes the ambiguity that underwriters otherwise resolve with a haircut.
Why It Matters for Your Loan
Recovery structure decides how much expense inflation reaches your bottom line, so two physically identical buildings with different modified gross terms can support meaningfully different loan amounts. Lenders underwrite the lease language and the collection history, not the offering memo summary. Commercial Lending Solutions abstracts recovery clauses across the rent roll before marketing a loan, packaging the reimbursement income so underwriters credit it in full instead of defaulting to a conservative haircut.
Related Terms
Modified Gross Lease: FAQ
Put This Knowledge to Work
Understanding Modified Gross Lease is step one. Commercial Lending Solutions structures deals around these numbers every day, across 1,000+ lenders. Free deal review, response within 24 hours.
Apply for Financing →