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Commercial Real Estate Triple Net (NNN) Lease Per SqFt Calculator

Calculate Year-1 annual and monthly NNN occupancy cost, cumulative multi-year lease obligation (escalation on base rent only), and average cost per sq. ft.

01 // INPUT PARAMETERS

PARAM // 01
MIN [100] DEFAULT [3500] MAX [500000]
PARAM // 02
MIN [1] DEFAULT [24] MAX [500]
PARAM // 03
MIN [0] DEFAULT [8.5] MAX [150]
PARAM // 04
MIN [0] DEFAULT [3] MAX [25]
PARAM // 05
MIN [1] DEFAULT [5] MAX [30]
ADJUST SLIDERS OR TYPE EXACT NUMBERS LIVE CALC

02 // CALCULATED RESULTS

Total Lease Term Cost OUT.01
$594,717.41
Over 5 years (escalation applied to base rent only)
Year-1 Occupancy Cost (Annual / Monthly) OUT.02
$113,750.00 ($9,479.17/mo)
3,500 sqft × ($24.00 base + $8.50 NNN)
Average Cost ($ / Sq.Ft. / Year) $33.98 / sqft
Year-1 NNN Expense Share 26.15%
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Year-1 Base Rent Share (73.8%) Year-1 NNN Pass-Through Share (26.2%)
[ RESULT INTERPRETATION ]

For 3,500 sq. ft. with $24.00/sqft Year-1 base rent, $8.50/sqft NNN expenses, and 3.00% annual escalation on base rent only, Year-1 occupancy cost is $113,750.00 ($9,479.17/mo). Across 5 years, total cumulative lease cost is $594,717.41 (averaging $33.98/sqft/yr).

FORMULA // Year_y = SqFt × [ BasePsf × (1 + Esc%)^(y-1) + NNN_Psf ] (Escalation on Base Rent Only)

03 // 5-TIER SENSITIVITY TABLE

Parameter Scaling Scenarios (-50% to +100%)
Scenario Step Leased Area (Sq. Ft.) Total Lease Term Cost Year-1 Occupancy Cost
0.5x (Conservative / Low) 1,750 $297,358.70 $56,875.00 ($4,739.58/mo)
0.75x (Downside Case) 2,625 $446,038.06 $85,312.50 ($7,109.38/mo)
1.0x (Current Baseline) 3,500 $594,717.41 $113,750.00 ($9,479.17/mo)
1.5x (Expansion Case) 5,250 $892,076.11 $170,625.00 ($14,218.75/mo)
2.0x (Double Scale) 7,000 $1,189,434.82 $227,500.00 ($18,958.33/mo)
Disclaimer & Disclosures: Calculations are mathematical estimates for informational and educational planning only and do not constitute financial, investment, tax, accounting, or legal advice. Last Verified: November 2026. All product and company names (including Stripe, PayPal, Apple, Steam, Anthropic, OpenAI, Shopify, Amazon, iyzico, and Trendyol) are trademarks of their respective holders; The Calculatorium is an independent reference and is not affiliated with or endorsed by them. Partner links labeled 'Sponsored // Affiliate' may earn a referral commission at zero extra cost to you.
FAQ & METHODOLOGY

NNN Lease Calculator

01.

Does the annual rent escalation percentage apply to Base Rent or NNN charges?

Contractual annual escalation clauses apply to Base Rent only: in year y (y = 1..T), total occupancy cost is SqFt × [BaseRentPsf × (1 + Escalation%)^(y - 1) + NNN_Psf].

02.

What expenses are included in Commercial Triple-Net (NNN) pass-throughs?

Triple-Net (NNN) charges pass through the tenant’s pro-rata share of property taxes, building hazard insurance, and Common Area Maintenance (CAM).

2026 Industry Benchmarks: NNN Lease Calculator

REF // CALC-184
Metric / Segment (NNN Lease) Top Quartile Industry Median & Baseline Caution Zone Practitioner Action (NNN Lease)
NNN Lease — NNN Expense Load (% of Base Rent) 20% – 30% of Base Rent (Industrial) 30% – 45% of Base Rent (Retail / Flex) (Baseline: $594,717.41) > 50% of Base Rent (High Tax / Old CAM) Request 3 years of historical actual NNN reconciliation statements prior to lease execution (NNN Lease COMMERCIAL NNN LEASE)
NNN Lease — Annual Base Rent Escalation (e) 2.0% – 3.0% Fixed Annual Step 3.0% – 3.5% Standard Market (Baseline: $113,750.00 ($9,479.17/mo)) > 4.0% or Uncapped CPI Negotiate fixed 2.5%–3.0% annual bumps rather than uncapped CPI escalations (NNN Lease COMMERCIAL NNN LEASE)
NNN Lease — CAM Controllable Expense Cap 3% – 5% Annual Non-Cumulative Cap 5% – 7% Cumulative Cap (Baseline: $33.98 / sqft) Uncapped CAM Pass-Throughs Insert a 5% annual cap on controllable CAM expenses in the lease rider (NNN Lease COMMERCIAL NNN LEASE)
NNN Lease — Tenant Improvement (TI) & Free Rent 2 – 6 Months Base Rent Abatement 1 Month per Lease Year (Baseline: 26.15%) Zero Abatement on Shell Space Clarify whether free-rent months abate Base Rent only or both Base + NNN charges (NNN Lease COMMERCIAL NNN LEASE)
Sources: BOMA (Building Owners and Managers Association) Commercial Lease Standards, ICSC Retail Lease Benchmarks & NAIOP Industrial Pass-Through Guide (2026). | Calibrated for Commercial Real Estate Triple Net (NNN) Lease Per SqFt Calculator (COMMERCIAL NNN LEASE).
FORMULA GUIDE, WORKED EXAMPLE & METHODOLOGY

NNN Lease Calculator: Commercial Triple-Net (NNN) Lease Pass-Throughs (Tax, Insurance, CAM) & Compound Annual Escalations

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I. NNN Lease Background & Operational Context

Commercial Real Estate Triple Net (NNN) Lease Per SqFt Calculator (REF #184 // COMMERCIAL NNN LEASE) is engineered for Corporate Finance & Investing operators evaluating commercial triple net nnn lease calculator, corporate finance calculator, cap rate npv calculator. Calculate Year-1 annual and monthly NNN occupancy cost, cumulative multi-year lease obligation (escalation on base rent only), and average cost per sq. ft. At the calibrated baseline of Rentable Leased Area (Sq. Ft.) = 3500 and Year-1 Base Rent ($ / Sq. Ft. / Year) = 24, this instrument computes a verified Total Lease Term Cost of $594,717.41 and Year-1 Occupancy Cost (Annual / Monthly) of $113,750.00 ($9,479.17/mo).

In commercial real estate (retail, industrial, medical, and flex office), Triple-Net (NNN) leases quote a headline Base Rent per square foot per year, while requiring the tenant to pay their pro-rata share of three operating expense nets: Property Taxes, Building Insurance, and Common Area Maintenance (CAM). Specifically for NNN Lease, accounting for NNN Pass-Through Charges ($ / Sq. Ft. / Year) (8.5) and Annual Base Rent Escalation (% — Base Rent Only) (3) yields Average Cost ($ / Sq.Ft. / Year): $33.98 / sqft and Year-1 NNN Expense Share: 26.15%.

II. NNN Lease Formula & Mathematical Mechanics

The NNN Lease Calculator engine evaluates the closed-form equation Year_y = SqFt × [ BasePsf × (1 + Esc%)^(y-1) + NNN_Psf ] (Escalation on Base Rent Only). Given Leased Area in SF (A), Annual Base Rent $/SF ($r_b), Annual NNN Expenses $/SF ($r_nnn = Tax + Insurance + CAM), Escalation Rate (e), Term in Years (T), and Free-Rent Months in Year 1 (m_free), Year-1 Effective Rate is r_b × (12 - m_free)/12 + r_nnn.

For 3,500 sq. ft. with $24.00/sqft Year-1 base rent, $8.50/sqft NNN expenses, and 3.00% annual escalation on base rent only, Year-1 occupancy cost is $113,750.00 ($9,479.17/mo). Across 5 years, total cumulative lease cost is $594,717.41 (averaging $33.98/sqft/yr). In year y ∈ {1..T}, total annual occupancy cost is A × (r_b·(1 + e)^{y-1} + r_nnn·(1 + e_nnn)^{y-1}), summing to Total Lease Commitment over the full term.

III. NNN Lease Calculator Parameter & Input Boundary Specification

Code Parameter Name (NNN Lease) Default Valid Range Mathematical Role
P01 // NNN Lease Rentable Leased Area (Sq. Ft.) 3500 100 to 500000 (step 100) Drives Total Lease Term Cost in the NNN Lease Calculator model
P02 // NNN Lease Year-1 Base Rent ($ / Sq. Ft. / Year) 24 1 to 500 (step 0.5) Drives Year-1 Occupancy Cost (Annual / Monthly) in the NNN Lease Calculator model
P03 // NNN Lease NNN Pass-Through Charges ($ / Sq. Ft. / Year) 8.5 0 to 150 (step 0.25) Drives Average Cost ($ / Sq.Ft. / Year) in the NNN Lease Calculator model
P04 // NNN Lease Annual Base Rent Escalation (% — Base Rent Only) 3 0 to 25 (step 0.25) Drives Year-1 NNN Expense Share in the NNN Lease Calculator model
P05 // NNN Lease Lease Term (Years) 5 1 to 30 (step 1) Drives Year-1 NNN Expense Share in the NNN Lease Calculator model

IV. Step-by-Step Worked Numerical Derivation (NNN Lease Calculator)

Here is the exact step-by-step calculation using the default baseline parameters for Commercial Real Estate Triple Net (NNN) Lease Per SqFt Calculator (Rentable Leased Area (Sq. Ft.) = 3500, Year-1 Base Rent ($ / Sq. Ft. / Year) = 24, NNN Pass-Through Charges ($ / Sq. Ft. / Year) = 8.5, Annual Base Rent Escalation (% — Base Rent Only) = 3, Lease Term (Years) = 5):

STEP 01 [NNN Lease] Year-1 Base Rent + NNN Charges: 3,500 sqft × ($24.00 + $8.50) = $113,750.00/yr ($9,479.17/mo).
STEP 02 [NNN Lease] Base-Only Escalation Schedule (3.00%/yr): Base rent compounds annually while NNN charges remain at Year-1 baseline.
STEP 03 [NNN Lease] Cumulative 5-Year Lease Obligation: $594,717.41.
STEP 04 [NNN Lease] Blended Effective Rate per Sq. Ft.: $594,717.41 / 5 yrs / 3,500 sqft = $33.98/sqft/yr.
VERIFIED NNN LEASE OUTPUT (Total Lease Term Cost): $594,717.41 (Year-1 Occupancy Cost (Annual / Monthly): $113,750.00 ($9,479.17/mo) | Average Cost ($ / Sq.Ft. / Year): $33.98 / sqft)

V. NNN Lease Modeling Pitfalls & Edge Cases

01

NNN Lease: Budgeting Only the Headline Base Rent $/SF

A $28/SF base rent with $9.50/SF NNN charges actually costs $37.50/SF—34% above headline price. When modeling Commercial Real Estate Triple Net (NNN) Lease Per SqFt Calculator (COMMERCIAL NNN LEASE), always verify your baseline Rentable Leased Area (Sq. Ft.) (3500) and Year-1 Base Rent ($ / Sq. Ft. / Year) (24) against live NNN Lease statements.

02

NNN Lease: Signing Without a Cap on Controllable CAM Expenses

Without a CAM cap, landlord management fees, landscaping, and parking lot resurfacing can spike unexpectedly. In NNN Lease workflows, shifts in NNN Pass-Through Charges ($ / Sq. Ft. / Year) (8.5) directly impact Total Lease Term Cost ($594,717.41) and Year-1 Occupancy Cost (Annual / Monthly) ($113,750.00 ($9,479.17/mo)).

03

NNN Lease: Assuming Free-Rent Abatement Covers NNN Charges

Standard commercial abatements waive Base Rent only; tenants still pay monthly NNN pass-throughs during free-rent months. For Corporate Finance & Investing teams tracking commercial triple net nnn lease calculator, corporate finance calculator, cap rate npv calculator, stress-test Annual Base Rent Escalation (% — Base Rent Only) (3) across the 0.5x–2.0x sensitivity matrix above.

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