South Dakota Commercial Rent Increase Rules: Lease Terms and Market Adjustments

South Dakota imposes no rent control on commercial properties, giving landlords maximum flexibility in setting and adjusting rental rates. Commercial rent increases are almost entirely governed by the lease agreement.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in South Dakota for guidance specific to your situation. Information last verified: March 2026.

Key Rules at a Glance

Rent Escalation Structures

Commercial leases in South Dakota typically use one of the following rent escalation structures:

Fixed Annual Increases

The lease specifies a predetermined percentage or dollar increase each year.

CPI-Based Adjustments

Rent is adjusted annually based on the Consumer Price Index (CPI), typically:

• CPI-U (All Urban Consumers) for the region
• With or without a floor (minimum increase) and cap (maximum increase)
• Common structure: CPI with a 2% floor and 5% cap

Market Rate Resets

At renewal or specific intervals, rent is reset to the prevailing market rate:

• Often occurs at the midpoint or renewal of a long-term lease
• May use independent appraisals to determine fair market rent
• Protects the landlord from below-market rates over time

Percentage Lease (Retail)

Common in retail commercial leases, the tenant pays:

• A base rent plus a percentage of gross sales above a breakpoint
• The breakpoint may be adjusted annually
• Particularly common in shopping centers and malls

NNN Escalations (Triple Net)

In triple net leases, the tenant's total cost increases as:

• Property taxes increase
• Insurance premiums rise
• Common area maintenance (CAM) costs change
• These pass-through costs are separate from base rent escalation

Tenancy at Will

For commercial properties operating under a tenancy at will (month-to-month), the landlord must provide at least one full calendar month's notice to terminate or change terms, including rent amounts (SDCL §43-32-13).

Drafting Effective Rent Escalation Clauses

Essential Elements

Every commercial rent escalation clause should include:

1. Escalation method — Fixed percentage, CPI, market rate, or hybrid
2. Timing — When escalation occurs (annually, at renewal, etc.)
3. Calculation details — Specific CPI index, appraisal procedures, or formulas
4. Floor and cap — Minimum and maximum increase amounts (if applicable)
5. Notice requirements — How and when the tenant will be notified
6. Dispute resolution — How disagreements over calculations are resolved

Sample Escalation Language

Fixed Increase:

"Base rent shall increase by three percent (3%) annually on each anniversary of the lease commencement date."

CPI Adjustment:

"Base rent shall be adjusted annually by the percentage change in the CPI-U for the Midwest Region, with a minimum increase of two percent (2%) and a maximum increase of five percent (5%)."

Strategies for Landlords

1. Build in escalations from day one — Don't wait for renewal to address rising costs
2. Use CPI floors — Ensures you receive at least a minimum increase even in low-inflation years
3. Include NNN pass-throughs — Transfer variable costs to tenants to protect margins
4. Set market rate reset provisions — For long-term leases, include periodic market adjustments
5. Document everything — Keep records of all CPI data, tax assessments, and calculation worksheets
6. Communicate increases clearly — Provide written notice with supporting calculations

South Dakota Market Context

South Dakota's commercial rental market varies by region and property type:

• Sioux Falls — Fastest-growing city with strong demand for office, retail, and industrial space
• Rapid City — Tourism and hospitality-driven commercial demand
• Aberdeen/Mitchell/Brookings — Smaller markets with stable, lower rental rates

Understanding local market dynamics helps set appropriate escalation structures that retain quality tenants while protecting investment returns.

How Landager Helps

Landager helps commercial landlords track lease escalation schedules, calculate CPI-based adjustments, monitor NNN expense pass-throughs, and send automated rent increase notifications — keeping your revenue optimization on track.

Back to South Dakota Commercial Landlord-Tenant Laws Overview.