Learn how to conduct commercial property due diligence in Turkey before signing a lease. Discover essential legal checks, title deed review, zoning compliance, permits, landlord verification, lease risks, and due diligence strategies for foreign investors in this 2026 Updated Legal Guide.

Leasing commercial property in Turkey is often one of the first and most significant legal commitments made by a foreign company entering the Turkish market. Whether opening a regional headquarters in Istanbul, establishing a manufacturing facility in Bursa, leasing office space in Ankara, operating a logistics warehouse in Mersin, or launching a retail business in Izmir, the commercial lease agreement will directly affect the company’s operational continuity, regulatory compliance, and financial performance.

Many foreign investors focus primarily on rent, location, and lease duration while overlooking legal due diligence. However, signing a lease without first verifying ownership, zoning status, occupancy permits, building compliance, and the landlord’s legal authority can expose the tenant to significant legal and financial risks.

Commercial leasing in Turkey is primarily governed by the Turkish Code of Obligations, while property ownership, zoning, licensing, and land registry matters are regulated under various Turkish property and administrative laws. Conducting comprehensive legal due diligence before signing a lease is one of the most effective ways to prevent future disputes.

This 2026 Updated Legal Guide explains the essential legal due diligence steps every foreign company should complete before leasing commercial property in Turkey.

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What Is Commercial Property Due Diligence?

Commercial property due diligence is the legal and commercial review conducted before entering into a lease agreement.

Its purpose is to identify:

• Ownership issues.
• Legal restrictions.
• Regulatory risks.
• Financial liabilities.
• Operational obstacles.
• Licensing problems.
• Zoning limitations.
• Lease-related risks.

Proper due diligence enables businesses to negotiate better lease terms and avoid costly surprises.

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Why Is Due Diligence Important?

Failure to investigate a commercial property may result in:

• Leasing property from an unauthorized person.
• Operating in violation of zoning regulations.
• Inability to obtain business licenses.
• Unexpected renovation costs.
• Rent disputes.
• Eviction risks.
• Administrative penalties.
• Business interruption.

Legal review before signing is significantly less expensive than resolving disputes after occupation.

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1. Verify Ownership

The first step is confirming who legally owns the property.

This includes reviewing:

• Title deed records.
• Ownership details.
• Co-ownership arrangements.
• Corporate ownership.
• Representative authority.

If the landlord is not the registered owner, their authority to lease the property should be verified.

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2. Review the Land Registry

The title deed should be reviewed for:

• Mortgages.
• Easements.
• Rights of way.
• Seizures.
• Court annotations.
• Preliminary injunctions.
• Lease registrations.
• Restrictions on use.

Certain annotations may affect the tenant’s long-term security.

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3. Confirm the Landlord’s Authority

If the landlord is:

• A company.
• A partnership.
• A representative.
• An attorney-in-fact.

the tenant should verify:

• Signature authority.
• Board resolutions where required.
• Power of attorney.
• Corporate registration.

Leases signed without proper authority may create legal complications.

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4. Verify Zoning Status

The intended business activity must comply with municipal zoning regulations.

Review:

• Zoning classification.
• Permitted commercial activities.
• Industrial permissions.
• Retail use.
• Office use.
• Tourism use.
• Healthcare use.
• Storage permissions.

A property suitable for one business may be unlawful for another.

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5. Occupancy Permit (İskan)

Before signing a lease, confirm whether the building has:

• Occupancy permit.
• Completion approval.
• Lawful construction status.

The absence of required permits may create licensing and operational difficulties.

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6. Business License Compatibility

Even if the lease is valid, the tenant must determine whether the property is suitable for obtaining:

• Workplace opening license.
• Restaurant license.
• Hotel permit.
• Manufacturing authorization.
• Medical license.
• Logistics approval.
• Environmental permits.

The intended business should be legally compatible with the property.

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7. Building Compliance

Inspect whether the property complies with:

• Fire safety regulations.
• Earthquake standards.
• Accessibility requirements.
• Occupational safety rules.
• Environmental regulations.
• Building codes.

Compliance failures may require significant investment before operations begin.

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8. Existing Lease Obligations

Review whether:

• Another tenant occupies the premises.
• Existing lease rights remain effective.
• Previous agreements affect possession.
• Renewal rights exist.

Possession should be available on the agreed commencement date.

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9. Utility Infrastructure

Verify:

• Electricity capacity.
• Water supply.
• Natural gas.
• Internet infrastructure.
• Waste disposal.
• Heating systems.
• Cooling systems.

Infrastructure deficiencies may significantly increase operating costs.

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10. Common Area Obligations

Commercial tenants should understand:

• Maintenance fees.
• Service charges.
• Security expenses.
• Parking fees.
• Management charges.
• Building maintenance contributions.

Hidden operating expenses should be identified before signing.

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11. Environmental Risks

For industrial or logistics properties, review:

• Environmental permits.
• Waste management obligations.
• Pollution risks.
• Hazardous material history.
• Soil contamination.
• Environmental investigations.

Environmental liabilities may significantly affect future operations.

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12. Tax and Financial Issues

Clarify responsibility for:

• VAT.
• Withholding tax where applicable.
• Property tax obligations.
• Management fees.
• Utility charges.
• Insurance costs.

The lease should allocate financial responsibilities clearly.

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13. Fit-Out Rights

If renovations are planned, confirm:

• Landlord approval requirements.
• Municipal permits.
• Ownership of improvements.
• Restoration obligations.
• Signage permissions.
• Technical installations.

Businesses should avoid investing in renovations before obtaining all required approvals.

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14. Insurance

Review insurance arrangements covering:

• Fire.
• Flood.
• Earthquake.
• Public liability.
• Business interruption.
• Equipment.
• Tenant improvements.

Insurance responsibilities should be allocated expressly in the lease.

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15. Assignment and Subleasing

Foreign companies should determine whether the lease permits:

• Assignment.
• Corporate restructuring.
• Group company occupancy.
• Subleasing.
• Franchise operations.
• Business transfers.

Future business flexibility should be preserved where possible.

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16. Rent Adjustment Mechanism

Carefully review:

• Annual increases.
• CPI adjustments.
• Market rent reviews.
• Foreign currency provisions.
• Five-year review mechanisms.

Ambiguous rent clauses are among the most common causes of litigation.

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17. Early Termination Rights

Before signing, understand:

• Notice periods.
• Compensation provisions.
• Replacement tenant rights.
• Force majeure.
• Mutual termination options.

A clear exit strategy protects the tenant if business needs change.

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18. Dispute Resolution

The lease should specify:

• Negotiation.
• Mandatory mediation where applicable.
• Turkish courts.
• Arbitration.

Choosing an appropriate dispute resolution mechanism can substantially reduce legal costs.

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Common Due Diligence Mistakes

Foreign companies frequently:

• Verify only the rent amount.
• Ignore title deed records.
• Fail to check zoning.
• Overlook occupancy permits.
• Ignore management fees.
• Accept landlord-prepared lease templates.
• Fail to verify authority.
• Skip legal review.

These mistakes often lead to operational and legal problems after the lease begins.

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Due Diligence Checklist

Before signing, confirm:

• Ownership verification.
• Title deed review.
• Zoning compliance.
• Occupancy permit.
• Business licensing compatibility.
• Building compliance.
• Utility capacity.
• Insurance arrangements.
• Rent adjustment clause.
• Early termination rights.
• Assignment provisions.
• Dispute resolution clause.

Completing this checklist significantly reduces legal risk.

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Why Professional Legal Assistance Is Essential

Commercial property due diligence involves:

• Turkish property law.
• Contract law.
• Commercial real estate.
• Corporate law.
• Administrative law.
• Construction regulations.
• Environmental law.
• Commercial litigation.

An experienced Turkish commercial real estate lawyer can:

• Review title deed records.
• Verify landlord authority.
• Conduct legal due diligence.
• Negotiate tenant-friendly lease terms.
• Review zoning and licensing issues.
• Identify hidden legal risks.
• Draft and negotiate lease agreements.
• Protect foreign investors before occupancy.

Proper due diligence before signing a commercial lease is one of the most valuable legal investments a foreign company can make.

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Frequently Asked Questions

1. Why should foreign companies conduct legal due diligence before leasing commercial property?

Legal due diligence helps identify ownership issues, zoning restrictions, permit deficiencies, financial obligations, and contractual risks before the lease is signed.

2. Should the title deed always be reviewed?

Yes. The title deed should be examined for ownership, mortgages, easements, court annotations, and other registered encumbrances that may affect the tenant’s rights.

3. Why is zoning verification important?

A property may be legally unsuitable for the tenant’s intended business activity. Zoning compliance should therefore be confirmed before signing the lease.

4. Can a landlord lease property without being the registered owner?

Possibly, but the tenant should verify that the landlord has valid legal authority—such as a power of attorney or corporate authorization—to lease the premises.

5. Should businesses verify occupancy permits?

Yes. The existence of the required occupancy permit and other building approvals may affect licensing, insurance, financing, and lawful operation of the business.

6. Why are assignment clauses important?

Assignment provisions provide flexibility if the tenant later restructures, sells the business, transfers operations to another group company, or completes a merger or acquisition.

7. What is the biggest mistake foreign tenants make?

One of the most common mistakes is signing a landlord-prepared lease without conducting independent legal due diligence or negotiating key commercial protections.

8. Why should foreign companies hire a Turkish commercial real estate lawyer?

A Turkish lawyer can conduct comprehensive legal due diligence, verify ownership and authority, review title deed records, negotiate tenant-friendly lease provisions, identify regulatory risks, and protect the company’s investment before the lease is executed.

Legal Support – Contact Our Commercial Real Estate Lawyers

Commercial property due diligence is an essential step in protecting your investment before signing a lease in Turkey. Identifying legal, regulatory, and operational risks at the outset can prevent costly disputes, licensing problems, and interruptions to your business.

Fırat Fesih Kaya and our legal team advise foreign investors, multinational corporations, manufacturers, retailers, hotel operators, logistics companies, healthcare providers, entrepreneurs, and international businesses on commercial property due diligence, lease negotiations, title deed investigations, zoning compliance, commercial real estate transactions, landlord-tenant disputes, and all aspects of Turkish commercial property law.

Phone: +90 312 434 22 22

Mobile: +90 532 769 22 22

Email: info@firatfesihkaya.av.tr

Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey