South Korea Commercial Rent Increase Rules: 5% Cap, Conversion Rates, and 10-Year Renewal Context
Guide to commercial rent increase regulations in South Korea including the 5% cap on renewals, jeonse-wolse conversion rates for commercial leases, and decrease rights.
Legal Disclaimer
This content is for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. Laws change frequently — always verify current regulations and consult a licensed attorney in your jurisdiction for advice specific to your situation. Landager is a property management platform, not a law firm.
Commercial rent increases in South Korea are regulated under the Commercial Building Lease Protection Act with the same 5% cap as residential leases, but the longer renewal period (10 years) and higher conversion rates create important practical differences.
Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in South Korea for guidance specific to your situation. Information last verified: March 2026.
The 5% Cap (Art. 11)
| Rule | Details |
|---|---|
| Maximum increase | 5% of existing rent or deposit |
| Applies to | Renewals of existing contracts |
| Re-increase restriction | No further increase within 1 year |
| Scope | Applies regardless of converted deposit amount |
vs. Residential
| Feature | Residential | Commercial |
|---|---|---|
| Cap | 5% | 5% (same) |
| Renewal period | Up to 4 years | Up to 10 years |
| Converted deposit relevance | N/A | Cap applies regardless |
When the Cap Applies / Does Not Apply
Applies: Agreed renewals, statutory renewal requests, mid-term increases
Does not apply: New contracts with new tenants, post-10-year renegotiations
Conversion Rates (Deposit ↔ Monthly Rent)
Commercial leases have higher conversion rate caps than residential leases:
| Standard | Commercial | Residential |
|---|---|---|
| Formula | Base rate + 4.5% | Base rate + 2% |
| Cap | 12% per annum | 10% per annum |
Tenant's Right to Request a Decrease
Commercial tenants may request rent decreases when economic conditions change (area decline, market downturn). This right applies regardless of converted deposit thresholds.
Consequences of Exceeding the Cap
- Excess is automatically void
- Overpaid amounts reclaimable as unjust enrichment
- Commercial Building Lease Dispute Mediation Committee may resolve disputes
Best Practices for Landlords
- Calculate increases precisely — amounts above 5% are void
- Observe the 1-year rule — no re-increase within 12 months
- Prepare market evidence — comparable commercial rents, tax changes
- Apply the correct conversion rate — commercial rate is higher than residential
- Plan for post-10-year negotiations — the 5% cap ceases after the renewal period expires
How Landager Helps
Landager tracks commercial rent histories, auto-calculates maximum increases, and sends renewal-timed notifications.
Sources & Official References
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