Lease Types and Structures

Base Rent

The core rent a tenant pays for leased space, quoted per square foot before NNN pass-throughs, free rent concessions, or annual escalations are factored in.

Home Glossary Lease Types and Structures Base Rent
Definition

Base rent is the core annual or monthly rent a tenant pays for leased industrial space, typically quoted as dollars per square foot per year. It is the starting figure in any lease negotiation, but rarely the tenant's full occupancy cost — NNN pass-throughs, escalations, and concessions like free rent all adjust the true cost above or below the quoted base rent.

What drives base rent up or down

Base rent is set primarily by market supply and demand, but building-specific factors move it meaningfully within a market. Higher clear height, better dock ratios, newer construction, and proximity to highway interchanges all command a premium. Older buildings, lower clear heights, and locations further from major logistics corridors typically rent below the market average.

Base rent is also shaped by lease term and tenant credit — landlords often offer a lower base rent in exchange for a longer lease term or a larger TI allowance commitment, since it locks in guaranteed income over more years.

Base rent vs. your true occupancy cost

Cost conceptWhat it captures
Base rentQuoted per-SF rent before any pass-throughs or concessions
Effective rentBase rent adjusted for free rent, concessions, and TI cost
All-in NNN costBase rent plus taxes, insurance, and CAM pass-throughs

What to watch for before committing

Base rent vs all-in cost

Never evaluate a deal on base rent alone — add estimated NNN pass-throughs to get the real monthly cost.

Escalation schedule

Confirm how much base rent increases each year of the term — a low starting rent with steep escalations can cost more over the lease term.

Comparability across quotes

Confirm whether competing quotes are NNN, gross, or modified gross before comparing base rent figures directly.

Free rent concessions

Ask whether quoted base rent already reflects any free rent period, or if that's a separate concession layered on top.

Market positioning

Compare the quoted base rent to recent comparable leases in the submarket to gauge whether it's priced at, above, or below market.

Renewal rent reset

Understand how base rent is recalculated at renewal — some leases reset to fair market value, others use a fixed escalation formula.

When you need to know this

  • Comparing competing listings — normalizing quotes across buildings with different lease structures
  • Budgeting occupancy cost — projecting total lease cost over a multi-year term, not just year-one rent
  • Negotiating lease term — trading base rent level against term length or TI allowance size
  • Evaluating renewal options — understanding how base rent will be recalculated when the initial term ends

Frequently asked questions

What is base rent in a commercial lease? +
Base rent is the core rent quoted for leased space, typically expressed as dollars per square foot per year, before any additional NNN pass-throughs, escalations, or concessions are factored in.
What is the difference between base rent and effective rent? +
Base rent is the quoted contractual rent. Effective rent adjusts that figure for concessions like free rent periods or TI allowances, giving a more accurate picture of the tenant's true average cost over the lease term.
Why is base rent lower in a triple net lease than a gross lease? +
In a NNN lease, base rent excludes property taxes, insurance, and CAM, which are billed separately. In a gross lease, those costs are built into a single, higher quoted rent. Comparing the two requires adding estimated pass-throughs to the NNN base rent.
What increases base rent over a lease term? +
Most industrial leases include an escalation clause that raises base rent by a fixed percentage or based on an index like CPI each year, so the rent paid in year five is typically higher than in year one.

Ready to compare rent across listings?

Browse available industrial listings across every U.S. market, or get a free availability report from our team.