Foreign Tenant Faces Mold, Dampness or Water Damage in Turkey: Landlord Repair Obligations Explained (2026 Updated Guide)

A foreign tenant discovers mold, dampness, leaking walls or water damage in a rental property in Turkey. Learn the landlord’s repair obligations, tenant remedies, rent reduction rights, evidence requirements and when termination may become possible.

A foreign tenant may move into an apartment in Turkey and discover serious mold, damp walls, ceiling leaks, water penetration, damaged flooring or recurring moisture shortly afterward. In other cases, the problem may develop months into the tenancy because of defective plumbing, roof damage, exterior insulation problems or another building-related issue. The landlord may refuse responsibility, repeatedly promise repairs without taking action or argue that the tenant caused the problem by failing to ventilate the property.

Under Turkish rental law, the landlord is required to deliver the rented property in a condition suitable for its intended contractual use and to maintain it in that condition throughout the tenancy. Where a rental property becomes defective, the tenant may potentially request repair, a proportionate reduction in rent, compensation for losses and, in cases involving an important defect, termination of the lease. The tenant also has a duty to notify the landlord without delay about defects that the tenant is not personally responsible for repairing.

For foreign tenants facing mold, dampness or water damage, the dispute often turns on three questions: What caused the problem? When was the landlord informed? What evidence proves the seriousness and duration of the defect?

Is the Landlord Responsible for Mold and Dampness?

Potentially, but the cause of the problem must be established.

Mold can result from structural moisture, defective waterproofing, roof leakage, plumbing problems, exterior-wall deficiencies or other conditions associated with the building. In other cases, the landlord may argue that inadequate ventilation, inappropriate use of the property or another tenant-related factor caused or aggravated the problem.

For this reason, photographs of mold alone may not resolve every dispute.

Where responsibility is contested, technical evidence concerning the source of the moisture can become extremely important.

The Landlord Must Maintain the Property in a Usable Condition

The landlord’s obligation continues throughout the rental relationship.

Article 301 of the Turkish Code of Obligations requires the landlord to deliver the property in a condition suitable for the agreed use and maintain it in that condition throughout the lease. For residential and roofed workplace leases, this obligation cannot be changed to the tenant’s disadvantage.

Accordingly, handing over an apartment does not automatically end the landlord’s responsibility for significant building-related defects that later interfere with its intended use.

What Counts as a Rental Defect?

A defect is not limited to something that makes the apartment completely impossible to occupy.

A condition that materially reduces the property’s suitability for its intended use can also become legally relevant.

Recurring water penetration, substantial dampness, extensive mold, leaking ceilings, defective plumbing and water damage affecting significant areas of the apartment may potentially qualify depending on their severity and effect on normal use.

The legal consequences generally increase as the seriousness and duration of the problem increase.

What If Mold Was Already Present When the Tenant Moved In?

A defect existing at the beginning of the tenancy should be documented immediately.

Article 304 addresses defects existing when the rented property is delivered. Where the property is delivered with an important defect, the tenant may invoke remedies associated with defective performance or the landlord’s responsibility for subsequently defective rental property.

Move-in photographs, videos, messages and inspection records can therefore become highly important.

What If the Mold Was Hidden by Fresh Paint?

This can create a particularly difficult dispute.

A foreign tenant may inspect an apparently renovated apartment only to see dark staining or mold emerging through newly painted walls several weeks later.

The tenant should photograph the progression of the problem and preserve the original property advertisement, viewing photographs and communications concerning renovation.

If the landlord previously discussed moisture or repair work, those communications should also be retained.

Water Leaks Should Be Documented Every Time They Occur

A single photograph may not demonstrate that a leak is persistent.

Where water enters during rain, photograph and record each occurrence. Document the ceiling, walls, flooring and any belongings damaged by the water.

If the landlord sends somebody to perform temporary repairs but the leak returns, preserve evidence of both the repair attempt and recurrence.

A timeline can help establish that the defect remained unresolved.

Notify the Landlord Without Delay

Prompt notification is extremely important.

Article 318 requires the tenant to notify the landlord without delay about defects that the tenant is not responsible for remedying; otherwise, the tenant may become responsible for damage resulting from the failure to notify.

Foreign tenants should therefore avoid allowing a serious moisture or water problem to continue for months without creating a provable notification record.

Written Notification Is Safer Than Telephone Calls

Telephone conversations can later become difficult to prove.

A tenant should preferably send a written communication describing the defect, its location, when it was discovered and the requested repair.

Photographs and videos may be included.

If the parties first discuss the problem by telephone, the tenant can create a written record afterward confirming what was discussed.

WhatsApp Messages Can Become Important Evidence

Many rental relationships are managed almost entirely through messaging applications.

A landlord may respond:

“I know about the roof leak.”

“The plumber will come tomorrow.”

“The wall has had this problem before.”

Such communications may become relevant to establishing the landlord’s knowledge and the history of attempted repairs.

Preserve the complete conversation rather than isolated screenshots.

Can the Tenant Demand That the Landlord Repair the Problem?

Potentially, yes.

Under Article 305, where the rented property subsequently becomes defective, the tenant may request removal of the defect, a proportionate reduction in rent or compensation. The right to terminate remains available in cases involving an important defect.

Article 306 further permits the tenant to request that the landlord remedy the defect within an appropriate period.

The tenant should therefore make the repair request clearly and preserve evidence of when it was made.

What Is an Appropriate Repair Period?

There is no single period applicable to every defect.

The appropriate time depends on the seriousness of the condition and the work necessary to remedy it.

An active water leak causing continuing damage may require a much faster response than a minor moisture issue that does not create immediate further damage.

The tenant should avoid imposing an arbitrary deadline without considering the circumstances.

What If the Landlord Ignores the Repair Request?

The tenant should preserve every unanswered communication.

Article 306 provides additional remedies where the defect is not remedied within an appropriate period. Under the statutory conditions, the tenant may have the defect remedied at the landlord’s expense and deduct the resulting claim from rent. Where the defect eliminates or substantially impairs the property’s suitability for the intended use and remains unresolved, termination may also become possible.

Before undertaking substantial repairs or making deductions from rent, the legal requirements and evidence should be assessed carefully.

Can the Tenant Arrange Repairs and Charge the Landlord?

Potentially, under the conditions established by Article 306.

However, this does not mean that the tenant can undertake unlimited renovation work and automatically charge every expense to the landlord.

The tenant should be able to demonstrate the defect, notification, opportunity provided for repair, necessity of the work and actual reasonable expense.

Invoices, technician reports and payment records should therefore be preserved.

Can Rent Be Reduced Because of Mold or Water Damage?

Potentially, yes.

Article 307 provides that where defects affect the use of the rented property, the tenant may request a proportionate reduction in rent for the period beginning when the landlord learns of the defect and ending when the defect is remedied.

This makes the date of provable notification particularly important.

How Much Can the Rent Be Reduced?

There is no universal percentage for mold, dampness or water damage.

The reduction should be proportionate to the impact of the defect on the property’s use.

Mold affecting a small storage area cannot automatically be treated in the same way as extensive moisture making bedrooms or major living areas unusable.

The seriousness, affected area, duration and impact on normal residential use should all be considered.

Do Not Arbitrarily Stop Paying Rent

A foreign tenant should be particularly careful here.

Discovering mold does not automatically mean that all rent payments can immediately stop.

An unjustified failure to pay rent may create a separate dispute involving alleged rental debt and potentially formal proceedings.

Rent reduction and repair-cost deductions should therefore be handled according to their proper legal basis.

Can the Tenant Claim Compensation?

Potentially.

Article 308 provides that the landlord must compensate damage resulting from defects unless the landlord proves absence of fault.

A tenant claiming financial loss should preserve evidence not only of the defect but also of the actual loss and its connection with the defect.

What If Furniture or Personal Belongings Are Damaged?

Water penetration can damage beds, furniture, clothing, electronics, carpets and other belongings.

Photograph the damaged items before disposing of them.

Preserve purchase documents, repair estimates, invoices and any other evidence of their value.

The tenant should also document exactly where the items were located and how the water reached them.

What If Mold Keeps Returning After Repairs?

Repeated recurrence can become important evidence.

The landlord may repaint the wall or clean visible mold without addressing the underlying moisture source.

If the problem returns, photograph it again and notify the landlord.

Technical investigation may be necessary to distinguish a cosmetic treatment from effective repair of the underlying defect.

Technical Reports Can Be Extremely Important

Mold disputes frequently turn into disagreements over causation.

The landlord may blame the tenant’s ventilation habits while the tenant alleges defective waterproofing or structural moisture.

A qualified technical assessment may help identify the source of the problem.

Reports, inspection records and repair recommendations should be preserved.

What If the Problem Comes From Another Apartment?

A water leak may originate from an upstairs apartment, common plumbing, the roof or another part of the building.

The immediate technical source does not necessarily resolve every question concerning responsibility between the tenant and landlord.

The foreign tenant’s primary rental relationship should still be examined together with the landlord’s obligations and the nature of the defect.

Building-management communications may also become useful evidence.

Preserve Communications With Building Management

Where the defect involves the roof, exterior wall, common pipes or another common part of the building, management records can become particularly relevant.

Preserve maintenance notices, inspection reports and messages concerning previous incidents.

These records may help establish that the problem is building-related rather than caused by the tenant.

What If the Landlord Says the Tenant Caused the Mold?

Do not rely on arguments alone.

Evidence should be used to determine the cause.

Move-in photographs, the timing of the first appearance, previous landlord communications, building records and technical reports can all become relevant.

If the tenant was aware of an obvious defect for a long period and continued using the property without raising the issue, this can also create evidentiary and legal difficulties. Turkish case law has recognized that prolonged use despite an obvious defect without raising a dispute may, depending on the circumstances, be interpreted as acceptance of the existing condition.

What If the Landlord Says “Just Open the Windows”?

That statement does not resolve the legal issue.

The cause of the moisture must still be determined.

If technical evidence establishes a structural or installation-related problem, merely advising the tenant to ventilate the apartment may not constitute an adequate remedy.

Conversely, if tenant conduct materially caused the condition, that fact can affect responsibility.

Preserve the Original Property Advertisement

The advertisement may contain valuable evidence about the condition promised before the tenancy.

Statements such as “fully renovated,” “dry apartment,” “new plumbing” or similar descriptions may become relevant when compared with the condition discovered after moving in.

Online advertisements should be saved before they disappear.

Take Move-In Photographs

Foreign tenants should photograph the apartment when they receive possession.

Walls, ceilings, bathrooms, windows, floors and areas around plumbing should be documented.

These photographs can later help establish whether staining, moisture or another defect existed at the beginning of the tenancy.

Keep a Defect Timeline

A chronological record can significantly improve the clarity of the dispute.

Record when the mold or leak first appeared, when the landlord was notified, when technicians attended, what repairs were performed and when the problem returned.

Link photographs and messages to the corresponding dates.

This can be particularly valuable where the dispute continues for several months.

Can Serious Mold or Water Damage Justify Lease Termination?

Potentially, yes.

Article 305 preserves the tenant’s termination right in cases involving an important defect. Article 306 also provides that where the defect eliminates or substantially impairs suitability for the intended use and is not remedied within the appropriate period, the tenant may terminate the agreement.

Whether mold, dampness or water damage reaches that threshold depends on the actual severity and evidence.

Do Not Simply Move Out Without Documenting the Problem

Leaving immediately without evidence can create a later dispute.

The landlord may claim that the apartment was usable and that the tenant simply abandoned the lease early.

Before leaving, the tenant should preserve photographs, technical evidence, notification records and repair requests.

Termination and return of possession should also be documented.

Document Key Delivery After Termination

Where the tenancy is terminated, the tenant should create evidence showing when the property was returned.

Key delivery should preferably be acknowledged in writing.

This can become important if the landlord later continues demanding rent.

Can the Landlord Blame the Tenant for Water Damage at the End of the Lease?

Potentially, a landlord may make such an allegation, but normal deterioration and tenant-caused damage must be distinguished.

Article 334 provides that the tenant is not responsible for deterioration resulting from contractual ordinary use. Article 335 also requires the landlord, when the property is returned, to inspect it and promptly notify the tenant in writing of defects for which the tenant is considered responsible, subject to the rule concerning defects that could not be discovered through ordinary inspection.

Move-in and move-out evidence can therefore become particularly valuable.

What If the Landlord Keeps the Security Deposit?

A landlord may attempt to deduct alleged mold or water damage from the security deposit.

The tenant should request a clear explanation of the alleged damage and preserve evidence concerning the original condition and source of the defect.

A structural moisture problem should not automatically be treated as tenant-caused damage simply because it became visible during the tenancy.

What If the Landlord Continues Demanding Full Rent?

The tenant should distinguish between a request for repair, a rent-reduction claim and a potential termination.

Where the defect affects use, Article 307 may support a proportionate reduction for the relevant period. Turkish case law confirms that the effect of defects on use must be examined when a rent-reduction claim is raised.

The evidence should therefore demonstrate both the existence of the defect and its effect on use.

What If Formal Proceedings Begin?

Do not ignore enforcement, mediation or court documents.

A foreign tenant may have substantial evidence concerning the defect but still need to respond within applicable procedural deadlines.

The rental agreement, payment history, defect evidence, notifications and repair records should be organized immediately.

Mandatory Mediation May Be Relevant

Rental disputes in Turkey generally fall within the mandatory mediation framework for many types of claims before litigation.

The exact procedural route depends on whether the dispute concerns repair, rent reduction, compensation, termination, security-deposit recovery or another remedy.

The claims should therefore be legally classified before proceedings are initiated.

Can the Foreign Tenant Pursue the Claim After Leaving Turkey?

Potentially, yes.

Leaving Turkey does not automatically eliminate rights arising from the rental relationship.

A foreign tenant expecting to return abroad should preserve the complete evidence file and arrange appropriate legal representation where necessary.

Power of Attorney Can Be Important

A mold or water-damage dispute may continue long after the foreign tenant has moved out.

Properly authorized legal representation can allow mediation, litigation and other procedural steps to continue without requiring the tenant to remain physically present throughout every stage.

Representation arrangements should preferably be considered before departure.

2026 Practical Legal Strategy

A foreign tenant discovering mold, dampness or water damage should first document the problem and notify the landlord without delay. This is important not only because the landlord must have an opportunity to address the defect, but also because Article 318 places a notification obligation on the tenant, while Article 307 links a potential rent reduction to the period beginning when the landlord learns of the defect.

Photographs, videos, complete WhatsApp conversations, repair reports, building-management records and the original property advertisement should be preserved. Where the cause is disputed, technical evidence may become particularly important.

The tenant should then determine the appropriate remedy. Depending on severity, this may involve repair, proportionate rent reduction, compensation or, in cases involving a sufficiently important defect, termination. The tenant should avoid arbitrarily stopping all rent payments or undertaking expensive repairs without first assessing the legal consequences.

Where the landlord denies responsibility, blames the tenant or repeatedly performs ineffective repairs, Lawyer Fırat Fesih Kaya can evaluate the rental agreement, technical evidence, notification history and financial losses to determine which claims and procedural remedies may be available.

Frequently Asked Questions

Is a landlord responsible for mold in a rental apartment?

Potentially. Responsibility depends substantially on the cause. Structural moisture, leaks or building-related defects should be distinguished from conditions attributable to tenant conduct.

Does the landlord have to repair a water leak?

Where the leak constitutes a defect affecting the rented property’s contractual use and is not a matter for which the tenant is responsible, the landlord’s statutory repair obligations may apply.

Do I have to notify the landlord about mold?

The tenant must notify the landlord without delay of defects that the tenant is not responsible for remedying.

Can I request lower rent because of mold or dampness?

Potentially, yes. Article 307 allows a proportionate reduction where a defect affects use, for the relevant period between the landlord learning of the defect and its remedy.

Can I stop paying rent completely?

Doing so without a proper legal basis can create a separate rental-debt dispute. The available reduction or deduction should be assessed carefully.

Can I arrange the repair myself?

Article 306 provides a mechanism under specified conditions where a landlord fails to remedy a defect within an appropriate period. The statutory requirements and repair costs should be documented carefully.

Can severe mold allow me to terminate the lease?

Potentially. Important defects and defects substantially preventing the intended use can raise termination rights under Articles 305 and 306.

What if the landlord says I caused the mold?

The cause should be established through evidence. Move-in photographs, building records, communications and technical reports may become important.

Can I claim compensation for belongings damaged by a leak?

Potentially, depending on the circumstances. Article 308 addresses compensation for losses caused by defects unless the landlord proves absence of fault.

What should I do first after discovering mold or water damage?

Photograph and record the defect immediately, notify the landlord in a provable written manner, preserve all communications and obtain technical evidence where the cause is disputed. Do not arbitrarily stop rent or abandon the property without first assessing the appropriate legal remedy.

Legal Support for Foreign Tenants Facing Mold and Water Damage

Foreign tenants may face substantial financial and practical difficulties when mold, dampness, roof leaks, plumbing failures or water damage affect a rented property. These disputes can involve repair obligations, rent reduction, compensation, termination, security deposits and allegations that the tenant caused the damage.

Fırat Fesih Kaya Law Office assists foreign nationals with defective rental properties, landlord repair disputes, mold and water-damage claims, rent-reduction disputes, lease termination, mandatory mediation and landlord-tenant litigation. Lawyer Fırat Fesih Kaya can evaluate the rental agreement, photographs, technical reports, landlord notifications and repair history to determine the appropriate legal strategy.

Phone: +90 312 434 22 22

WhatsApp: +90 532 769 22 22

Email: info@firatfesihkaya.av.tr