Typical triple net (NNN) lease costs per square foot vary by market, building class, and tenant improvements. Main cost drivers include base rent, property taxes, insurance, and common-area maintenance (CAM). The following guide presents cost ranges in USD, with per-square-foot estimates to help buyers budget accurately.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Base Rent ($/sf/yr) | $10.00 | $16.50 | $28.00 | Market tier and term length impact; typical ranges for office, retail, and industrial spaces. |
| Taxes ($/sf/yr) | $2.50 | $5.50 | $12.00 | Assessed value and local tax rates drive variation. |
| Insurance ($/sf/yr) | $0.40 | $1.10 | $3.50 | Property type and coverage levels affect cost. |
| CAM (Common Area Maintenance) ($/sf/yr) | $2.20 | $4.80 | $9.50 | Pool, lobby, hallways, landscaping, and shared systems included. |
| Other NNN Pass-Throughs ($/sf/yr) | $0.30 | $1.20 | $3.80 | Repairs, management fees, utilities, or special assessments. |
Assumptions: region, property type, term length, and tenant responsibilities vary; initial estimates shown are typical ranges.
Overview Of Costs
Triple net leases bundle operating expenses with rent, shifting many risks to tenants. The annual cost per square foot combines base rent, real estate taxes, insurance, and CAM. In most markets, the smallest unit is the annual cost per square foot, which can be converted to monthly figures by dividing by 12. For budgeting, consider total annual costs and then break them down to monthly payments. The per-square-foot perspective helps compare properties of different sizes, but total cash flow remains driven by the lease term and space size.
Typical cost ranges reflect space type and location. An urban high-rise office may exceed $30-$40 per sf per year for base rent in strong markets, while CAM and taxes can add another $8-$15 per sf per year. In suburban or secondary markets, base rent often falls in the $12-$22 per sf per year band, with CAM and taxes contributing $4-$10 per sf. Industrial spaces may have lower CAM but higher taxes depending on jurisdiction. Understanding these components is essential to compare offers accurately.
Cost Breakdown
The cost breakdown below shows major components and typical ranges. The table formats total annual costs and per-square-foot estimates, with a brief assumption for scale.
| Component | Low ($/sf/yr) | Average ($/sf/yr) | High ($/sf/yr) | Notes |
|---|---|---|---|---|
| Base Rent | 10.00 | 16.50 | 28.00 | Market class and lease term drive the spread. |
| Taxes | 2.50 | 5.50 | 12.00 | Tax basis varies by property and jurisdiction. |
| Insurance | 0.40 | 1.10 | 3.50 | Property type impacts premium levels. |
| CAM | 2.20 | 4.80 | 9.50 | Includes common-area services and maintenance. |
| Other Pass-Throughs | 0.30 | 1.20 | 3.80 | Repairs, utilities, admin fees, and reserves. |
| Total NNN Cost | 15.40 | 29.20 | 56.90 | Sum of all components; per sf per year. |
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What Drives Price
Pricing for NNN leases is driven by space type, location, and property performance. Financeability and accessibility can influence base rent, while local tax rates and assessed values affect the tax line. Parking availability, building amenities, and occupancy levels also impact CAM and pass-throughs. Regional dynamics significantly affect the cost per square foot.
Two niche drivers frequently matter: building class and tenant improvements. A Class A property with modern HVAC, security, and lobby finishes tends to command higher base rents, which in turn elevates total NNN costs. Tenant improvements or landlord-funded TI allowances may shift early costs but can reduce per-year CAM if the property is more efficient.
Regional Price Differences
Regional variation is substantial for NNN costs. In large coastal markets (e.g., Northeast and West Coast), base rents and CAM tend to be higher, while taxes may be similar to inland markets but with different assessment bases. Midwest markets often show lower base rents with moderate CAM. In the Southeast and Sun Belt, tax rates and CAM can be moderate, while base rents vary by city and submarket. Expect ±10–40% deltas between markets for similar space types.
As a practical example, compare three regions: Urban Coast (high base rent, higher taxes), Suburban Midwest (moderate base rent, moderate CAM), and Rural Southeast (lower base rent, potentially higher CAM if utilities are centralized). The regional delta can influence a negotiation by 1–2 points on the overall per-square-foot cost, or more on specific components like CAM or taxes.
Labor, Hours & Rates
Labor costs are generally embedded in CAM and management fees rather than separate billables in a standard NNN lease. If a landlord includes on-site management costs or frequent maintenance visits, these can be reflected in CAM per SF. Carefully review the CAM description and any management markup. In some markets, tenants may negotiate cap limits on CAM growth to protect against escalating charges over the term.
Important numeric threshold considerations include the property’s age, maintenance cycle, and expected service levels. For industrial facilities with high dock usage, CAM can be higher due to maintenance of bays and loading areas. For office spaces, lobby and HVAC maintenance increases CAM relative to occupancy-heavy months.
Ways To Save
Cost-saving strategies focus on negotiation, efficiency, and clarity. First, compare multiple properties using a consistent per-sf metric to isolate favorable terms. Seek caps on CAM inflation and tax increases, and inquire about audit rights to verify expense charges. Request a detailed CAM worksheet and annual reconciliations.
Other tactics include negotiating a longer term with fixed annual increases, maximizing energy efficiency to lower utility-related CAM, and exploring rebates or incentives offered by local authorities. Consider negotiating landlord-funded TI improvements that reduce upfront tenant costs while lowering ongoing CAM burdens through efficiency gains. Use a clear breakdown in the lease to prevent hidden charges and expedite future budget accuracy.
Real-world practice shows that disciplined benchmarking and explicit caps on major cost drivers yield the most reliable long-term stability in NNN leases. When evaluating options, combine per-square-foot economics with total cash flow over the anticipated term to assess true affordability.