What’s the Difference Between Gross Leases and Modified Gross Leases in NYC Office Space?
Why Tenants Get Confused
Manhattan office tenants—especially smaller firms and nonprofits—are often surprised by how many different ways landlords structure rent. One of the most common sources of confusion is the difference between a gross lease and a modified gross lease. Both sound similar, both include some operating costs, but the details of what is and isn’t included can change your bottom line by several dollars per square foot each year.
Gross Leases: The All-Inclusive Model
Definition:
In a gross lease, the landlord charges a single rent figure that already includes the tenant’s share of building operating expenses (cleaning, security, utilities for common areas) and real estate taxes—based on a base year.
How it works in NYC:
- Your first lease year (the base year) sets the benchmark for taxes and operating expenses.
- You pay only increases above that year in subsequent years.
- Electricity for your suite may or may not be included—it’s often billed separately as a flat “rent inclusion” factor (e.g., $3.50/SF).
Example:
A 5,000 RSF suite in Midtown East at $70/SF gross = $350,000/year.
- If operating expenses rise $2/SF the following year, tenant pays +$10,000.
- If real estate taxes rise $1/SF, tenant pays +$5,000.
- Total = $365,000.
Pros:
- Predictable and easy to budget.
- No need to track detailed monthly expense bills.
Cons:
- Tenants may pay more if the landlord overestimates operating expenses upfront.
- Still subject to escalation pass-throughs.
Modified Gross Leases: The Hybrid Approach
Definition:
In a modified gross lease, the landlord charges base rent plus certain pass-through expenses, spelled out in the lease. It’s “modified” because it’s not fully gross, and not fully net—it’s a middle ground.
Typical structure in NYC:
- Base rent excludes some expenses, which the tenant pays directly (often electricity, sometimes cleaning).
- Operating expenses and real estate taxes still pass through above a base year, as in a gross lease.
Example:
A 5,000 RSF suite in Midtown South at $65/SF modified gross = $325,000/year base.
- Tenant also pays submetered electricity averaging $2.50/SF = $12,500.
- After year one, operating expenses rise $2/SF = +$10,000.
- Total occupancy cost = $347,500.
Pros:
- Often lower face rent than full gross leases.
- More transparency—tenants see direct utility usage.
Cons:
- Monthly bills fluctuate with electricity consumption.
- More complex budgeting than a gross structure.
Key Differences Side by Side
| Feature | Gross Lease | Modified Gross Lease |
|---|---|---|
| Base Rent | Higher, but includes more services | Lower, but excludes certain items |
| Operating Expenses | Included in Year 1 (base year); tenant pays increases thereafter | Same base year structure |
| Taxes | Included in Year 1; increases passed through | Same base year structure |
| Electricity | Often “rent inclusion” (flat $3–$4/SF) | Usually paid direct via submeter |
| Budgeting | Simple, predictable | More variable, depends on usage |
What Tenants Should Watch For
- Electricity Treatment – Biggest variable. Confirm if it’s included in rent or billed separately.
- Cleaning – Some modified gross leases exclude it, leaving tenants to contract directly.
- Escalation Base Years – Make sure the base year is a full 12-month calendar year.
- Operating Expense Definitions – Push to exclude capital expenditures and landlord marketing costs.
Tenant Takeaway
- A gross lease is simpler: one rent figure with most costs baked in.
- A modified gross lease looks cheaper upfront but pushes utilities or services to the tenant.
- In 2025, many Midtown Class A towers lean gross, while smaller Midtown South and Downtown buildings lean modified gross.
For tenants, the key is to model the true occupancy cost, not just the face rent.
Where We Fit In
We can model both gross and modified gross lease structures side by side. Our tenant-only advisors will:
- Benchmark typical electricity and cleaning costs by building type
- Identify hidden pass-throughs that landlords bury in “modified” structures
- Negotiate base years and exclusions to protect your budget
Contact us to compare your options and secure the lease structure that fits your business best.
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