Tenant Uses a Residential Property as a Business Without Permission in Turkey: Landlord Remedies – 2026 Updated Guide

What can a foreign landlord do when a tenant uses a residential property as a business without permission in Turkey? Learn about notice, termination, eviction and compensation.

A tenant may breach the lease by using a residential property as a business without the landlord’s consent, especially when the use causes visitors, noise, damage, commercial traffic or unauthorized alterations. Termination is not always automatic. The landlord should document the use, send a proper notice, complete any required mediation and pursue eviction or compensation through the lawful procedure.

A foreign landlord may discover that a tenant is using a residential apartment as an office, clinic, studio, shop, warehouse, classroom or short-term accommodation business.

The tenant may have placed a sign outside, received customers, employed workers, stored commercial goods, changed the interior or registered a company address at the property. These activities may breach the lease and create additional building, insurance, safety and administrative risks.

However, not every form of working from home is automatically a lease violation. The legal assessment depends on the actual use, the lease terms, the impact on the property and whether the landlord gave consent.

Is Working from Home the Same as Commercial Use?

A tenant who works remotely from a laptop without receiving customers, employing staff, creating noise or changing the property may not be using the apartment as a business in the same way as a customer-facing operation.

The situation may be different if the tenant:

• Receives customers or patients;
• Employs staff at the apartment;
• Uses the apartment as a public office;
• Operates a beauty, health or consulting business;
• Stores commercial goods;
• Receives frequent deliveries;
• Uses machinery or professional equipment;
• Places signs or advertising;
• Creates noise or disturbance;
• Changes walls, plumbing or electrical systems;
• Uses common areas for business activity;
• Offers the apartment for repeated short-term stays.

A company registration at the residential address may be relevant, but it is not always conclusive by itself. The landlord should determine whether an actual business is being conducted at the property.

Review the Lease and Property Rules

The first step is to review the lease and documents connected with the apartment.

Important provisions may concern:

• Residential use;
• Commercial activity;
• Home office use;
• Customer visits;
• Subletting;
• Alterations;
• Noise and nuisance;
• Building management rules;
• Insurance obligations;
• Inspection rights;
• Termination for breach;
• Restoration of the property.

If the lease expressly states that the property may be used only as a residence, operating a business may constitute a contractual breach.

Even when the lease is not detailed, the tenant may still be required to use the apartment consistently with its intended purpose and avoid causing harm to the owner, building or neighboring occupants.

Why Unauthorized Business Use Creates Legal Risks

Using an apartment as a business may create risks beyond a simple lease violation.

The landlord may face:

• Damage to flooring, walls or fixtures;
• Increased utility consumption;
• Insurance coverage disputes;
• Complaints from neighbors;
• Building management claims;
• Safety concerns;
• Unauthorized construction;
• Loss of residential character;
• Increased visitor traffic;
• Problems during a future sale or valuation.

A tenant may also use the property for an activity requiring separate permits or regulatory compliance. The landlord should not assume responsibility for the tenant’s business, but should document any risk affecting the property.

How Can the Foreign Landlord Prove the Unauthorized Use?

The landlord should collect evidence showing what activity is actually taking place.

Useful evidence may include:

• Photographs of signs or advertisements;
• Online business listings;
• Messages with the tenant;
• Customer or delivery records;
• Building management complaints;
• Security camera records obtained lawfully;
• Witness statements;
• Utility consumption records;
• Photographs of equipment or stock;
• Evidence of employee activity;
• Records of repeated short-term bookings;
• Company documents showing use of the address;
• Evidence of damage or unauthorized alterations.

Digital evidence should be preserved in complete form. Screenshots should be supported by original files, dates, account information and other material showing authenticity.

A single company registration or one visitor may not prove that the apartment is being operated as a business. The landlord should establish the scale, frequency and effect of the activity.

Send a Written Notice to the Tenant

The landlord may send a written notice requiring the tenant to stop the unauthorized activity and restore the property to residential use.

The notice should identify:

• The apartment;
• The relevant lease clause;
• The observed business activity;
• The date the activity was discovered;
• The effect on the property or building;
• The requested corrective action;
• The deadline for compliance;
• The possible consequences of continued breach.

The landlord should avoid threats, public accusations or unsupported claims that the tenant is committing a crime.

Depending on the seriousness of the breach, the owner may request that the tenant stop receiving customers, remove equipment, take down signage, repair alterations and confirm that the apartment will be used only for residential purposes.

Whether the tenant must be given an opportunity to correct the breach depends on the nature of the violation and the applicable procedure.

Can the Lease Be Terminated?

Potentially, but termination is not always automatic.

Unauthorized business use may justify termination when it is a serious breach of the lease, changes the purpose of the property, causes disturbance or damage, violates building rules or continues after a valid warning.

The landlord should assess:

• Whether the lease expressly prohibits business use;
• Whether the activity is substantial;
• Whether the tenant received prior permission;
• Whether the use causes damage or disturbance;
• Whether the tenant can realistically correct the breach;
• Whether the activity has continued after notice;
• Whether the tenant made unauthorized alterations;
• Whether the property is being used by a company or third party;
• Whether the tenant has a statutory right to remain.

The owner should not assume that ownership alone permits immediate termination. Notice, mediation, litigation and enforcement requirements may apply.

Mediation Before Eviction Proceedings

Many lease disputes involve a pre-litigation mediation stage before a court claim can proceed. The exact requirement depends on the claim and the type of tenancy.

Mediation may resolve:

• Cessation of the business activity;
• Restoration of the apartment;
• Payment of repair costs;
• Removal of equipment;
• Voluntary departure;
• Return of keys;
• Compensation for unauthorized use;
• Settlement of unpaid rent or expenses.

Any settlement should clearly state the date of compliance, the restoration obligations, payment terms and consequences of noncompliance.

The landlord should not sign a new business-use agreement merely to resolve the dispute unless the owner intentionally wants to permit the activity and has assessed building, insurance and regulatory consequences.

Eviction and Recovery of Possession

If the tenant refuses to stop the business activity or continues using the property in breach of the lease, the landlord may consider an eviction or possession claim.

The court may examine:

• The lease;
• The intended use of the property;
• Evidence of commercial activity;
• Notices and responses;
• Building management records;
• Damage and disturbance;
• Whether the activity has stopped;
• Whether the tenant made repairs;
• Whether termination was properly carried out.

If the tenant has transferred the property to a company, employee or subtenant, the landlord should identify every person using the apartment. Unauthorized subletting and commercial use may create separate grounds and claims.

The owner should not change the locks, remove equipment or disconnect utilities without following the lawful process.

Repair Costs and Compensation

The landlord may seek compensation for losses caused by unauthorized business use.

Potential losses may include:

• Repairing unauthorized alterations;
• Replacing damaged fixtures;
• Cleaning costs;
• Increased utility expenses;
• Building management charges;
• Costs of restoring residential use;
• Compensation for unauthorized occupation;
• Lost rental opportunities;
• Professional inspection expenses.

The landlord should distinguish ordinary wear and tear from damage caused by business activity. Repair estimates, invoices, expert reports and before-and-after photographs can support the claim.

The owner should not automatically claim the difference between residential and commercial rent. A higher claim requires a legal and evidentiary basis. The landlord should claim only proven losses and avoid double recovery.

Interim Injunctions and Urgent Protection

An interim injunction may be considered where the business activity is causing immediate and serious harm.

Urgent protection may be relevant if:

• The tenant is carrying out structural work;
• The apartment is being used by many customers;
• Equipment creates a safety risk;
• The tenant is damaging common areas;
• Commercial stock is being stored dangerously;
• Evidence is being destroyed;
• The property is being advertised for short-term business use;
• The activity is creating serious disturbance.

An interim measure is temporary and does not finally decide whether the lease should be terminated. The applicant generally needs to show a credible claim, urgency and a risk of serious harm. Security may be required.

Administrative and Criminal Issues

Unauthorized business use is usually addressed through civil lease remedies, but other issues may arise.

The activity may involve separate administrative questions relating to permits, safety, building rules or business operation. The landlord should preserve evidence and seek appropriate advice rather than using private pressure.

A criminal complaint may be considered if the matter also involves:

• Forged consent or permit documents;
• Deliberate property damage;
• Threats or violence;
• Fraud;
• Theft;
• Unlawful entry;
• Destruction of evidence.

The landlord should distinguish a lease breach from a criminal offense. Unsupported criminal allegations can harm the civil case.

Foreign Landlord Living Abroad

A foreign owner may often handle the dispute without traveling to Turkey.

A lawyer acting under a properly prepared power of attorney may be able to:

• Review the lease and title records;
• Investigate the business use;
• Collect evidence;
• Send a formal notice;
• Attend mediation;
• Request an interim injunction;
• File an eviction or compensation claim;
• Coordinate repairs;
• Follow enforcement after judgment.

The power of attorney may require authentication, legalization or an apostille, together with a reliable translation.

The landlord should provide the lawyer with the lease, property photographs, building records, tenant communications, payment evidence and all available information concerning the business.

Legal Remedies and Appeal Process

If the court rejects an eviction, termination or compensation claim, the landlord may have appeal or review options depending on the type of decision and procedural stage.

An appeal may concern:

• Incorrect interpretation of the residential-use clause;
• Failure to consider evidence of business activity;
• Inadequate assessment of customer traffic or disturbance;
• Failure to evaluate building management records;
• Incorrect calculation of repair costs;
• Procedural errors;
• Failure to distinguish home working from commercial use.

If an interim injunction is rejected, the written decision should be reviewed immediately because procedural periods may begin from formal service.

After a final judgment, court-supervised enforcement may be required if the tenant refuses to comply or vacate.

2026 Practical Checklist

A foreign landlord should:

• Review the lease and building rules;
• Determine whether the use is truly commercial;
• Distinguish remote work from customer-facing business;
• Preserve photographs, listings and messages;
• Document damage, visitors and disturbance;
• Send a carefully prepared written notice;
• Complete mediation where required;
• Consider termination and eviction;
• Claim only proven losses;
• Consider an interim injunction for urgent harm;
• Avoid self-help eviction methods;
• Prepare a power of attorney if living abroad;
• Use court-supervised enforcement after judgment.

Lawyer Fırat Fesih Kaya recommends assessing the lease, business activity, property condition and building rules together before deciding whether termination is proportionate and legally sustainable.

Frequently Asked Questions (FAQ)

1. Can a tenant use a residential apartment as a business without the landlord’s permission?

The answer depends on the lease and the actual activity. A low-impact home office may differ from a customer-facing business, office, clinic, shop or warehouse.

2. Can unauthorized business use justify termination of the lease?

Potentially, yes. Serious or continuing commercial use may constitute a lease breach, but termination is not always automatic and the proper procedure must be followed.

3. Is working from home automatically prohibited?

No. Remote work without visitors, employees, noise, signs, equipment or property damage may not have the same legal effect as operating a business from the apartment.

4. What evidence proves that a tenant is operating a business?

Photographs, online listings, customer traffic, building complaints, utility records, messages, delivery evidence, equipment and witness statements may be relevant.

5. Can the landlord immediately change the locks?

The landlord should not use self-help eviction methods. A written notice, mediation, court proceeding and enforcement may be required.

6. Can the landlord demand higher rent because the tenant used the apartment as a business?

Not automatically. Any claim for additional rent or compensation must have a legal basis and be supported by evidence of actual loss.

7. Can the landlord claim repair costs caused by business use?

Yes, if the landlord proves that the damage was caused by the tenant’s activity and that the repair costs are reasonable and necessary.

8. Is mediation required before an eviction lawsuit?

Many lease-related disputes involve a pre-litigation mediation stage. The exact requirement depends on the claim and the type of tenancy.

9. Can a foreign landlord pursue the case from abroad?

Often, yes. A lawyer may act under a properly authenticated power of attorney and manage notices, mediation, litigation and enforcement.

10. What happens if the tenant appeals an eviction judgment?

The landlord may need to respond to the appeal and assess whether enforcement can continue. The effect depends on the type of decision and applicable procedure.

This article is provided for general informational purposes only and does not constitute legal advice. We recommend consulting a lawyer about your specific circumstances to avoid any loss of rights.

Legal Support for Unauthorized Business Use of Residential Property

Expert legal support is essential when a tenant uses a foreign-owned residential property as a business without permission.

Fırat Fesih Kaya Law Office provides professional assistance in lease termination, unauthorized commercial use disputes, eviction proceedings, compensation claims, property restoration, mediation, interim injunctions and court-supervised enforcement.

Lawyer Fırat Fesih Kaya

Phone: +90 312 434 22 22
WhatsApp: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No:221, Yildirim Tower No:148, Balgat, Cankaya, Ankara, Turkey