Commercial Lease Cost Calculator
Total area of the space.
Price per square foot per year.
Taxes, Insurance, Maintenance (0 if Gross Lease).
Duration of the contract.
Please enter valid numeric values for Square Footage and Base Rate.
Monthly Base Rent:
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Monthly NNN/CAM Charges:
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Total Monthly Rent Payment:
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Annual Base Rent:
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Total Annual Occupancy Cost:
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Total Lease Contract Value:
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How to Calculate Rental Rate on Commercial Property
Calculating the rental rate for commercial real estate differs significantly from residential leasing. While apartments are typically priced as a flat monthly fee, commercial properties (office, retail, and industrial spaces) are generally priced based on Square Footage (SF) and usually quoted on an annual basis.
Understanding the formula is essential for business owners to accurately budget their occupancy costs and for investors to project rental income.
The Commercial Rent Formula
The standard formula for calculating commercial rent involves multiplying the rentable square footage by the annual price per square foot, plus any additional operating expenses (Triple Net or NNN).
Total Annual Rent = (Base Rate + NNN Rate) × Rentable Square Footage
To determine your actual monthly rent check, you divide that total by 12:
Monthly Payment = Total Annual Rent / 12
Key Metrics Explained
- Rentable Square Footage (RSF): This is the total area you pay for. In many buildings, this includes your usable space plus a pro-rata share of common areas like lobbies and hallways (the "Load Factor").
- Base Rental Rate: The amount paid to the landlord for the use of the space, usually quoted as an annual dollar amount per square foot (e.g., $25.00/SF).
- NNN / CAM Charges: In a "Triple Net" lease, the tenant pays the base rent plus their share of Property Taxes, Insurance, and Common Area Maintenance (CAM). These are estimated annual costs passed through to the tenant.
Example Calculation
Let's say you are looking to lease a 3,000 sq ft office space.
- Base Rate: $22.00 per sq ft / year
- NNN / CAM: $7.50 per sq ft / year
First, calculate the total cost per square foot: $22.00 + $7.50 = $29.50 per sq ft.
Next, multiply by the size of the space: $29.50 × 3,000 sq ft = $88,500 per year.
Finally, divide by 12 to find your monthly rent: $88,500 / 12 = $7,375 per month.
Gross vs. Triple Net (NNN) Leases
When using this calculator, it is vital to know the lease type:
- Full Service / Gross Lease: The landlord pays all operating expenses. You would enter $0 in the "NNN / CAM Charges" field above.
- Triple Net (NNN) Lease: The tenant pays base rent plus all operating expenses. You must enter the estimated NNN charges to get an accurate total cost.
- Modified Gross: A split of expenses between tenant and landlord.