A title deed does not always tell the whole story of a property in Turkey.
A buyer may inspect the title deed, confirm the registered owner, pay the purchase price and formally acquire the property—only to discover later that the building does not have an occupancy permit, was constructed differently from its approved architectural plans, or contains unauthorised additions.
These problems can have significant consequences for the property’s legal status, future resale, use and value.
Two documents are therefore particularly important when purchasing real estate in Turkey:
the Building Permit (Yapı Ruhsatı) and
the Occupancy Permit (Yapı Kullanma İzin Belgesi – commonly known as “İskan”).
Although these documents are closely connected, they serve entirely different legal purposes.
Understanding the difference is essential for both Turkish and foreign property buyers.
What Is a Building Permit in Turkey?
A building permit, known in Turkish as a “yapı ruhsatı,” is the administrative authorization that allows construction to proceed in accordance with the approved project and applicable planning legislation.
The Turkish zoning system is primarily governed by Zoning Law No. 3194 (İmar Kanunu) together with relevant planning regulations.
As a general principle, construction falling within the scope of the Zoning Law cannot lawfully be carried out without the required building permit, subject to specific statutory exceptions.
The competent authorities responsible for building permits and occupancy permits are generally the relevant municipalities or special provincial administrations, depending upon where the property is located. The Ministry of Environment, Urbanisation and Climate Change confirms this allocation of authority in its official guidance.
A building permit should therefore be understood as permission to construct.
It does not mean that the completed building has automatically been approved for occupation.
What Information Does the Building Permit Cover?
The building permit is connected with the approved architectural and technical project for the development.
Depending upon the building, these project documents may regulate issues including:
- the location of the building on the parcel,
- total construction area,
- number of floors,
- number and type of independent units,
- intended use of the building,
- architectural layout,
- structural system,
- common areas,
- parking arrangements,
- technical installations,
- and other planning characteristics.
The legal significance of the permit is therefore not merely that “a building may be constructed.”
The building must also generally be constructed in accordance with the permit and its approved annexes.
A property that physically differs from the approved plans may consequently create a separate zoning-law problem even though a building permit was originally issued.
Building Permits Do Not Remain Valid Indefinitely
Buyers purchasing unfinished developments should also examine whether the building permit remains legally effective.
Under the zoning framework, a building permit may lose its effectiveness where construction is not commenced within the statutory period or the project is not completed within the permit period without the necessary renewal.
Official guidance from the Ministry of Environment, Urbanisation and Climate Change notes that permits may become ineffective where construction is not commenced within two years, or where the building is not completed within the five-year permit period and the permit is not properly renewed.
This can be particularly important in abandoned or heavily delayed development projects.
A buyer should therefore not merely ask:
“Was a permit ever issued?”
The better question is:
“Is there a valid permit covering the building as it actually exists today?”
What Is an Occupancy Permit?
The Yapı Kullanma İzin Belgesi, commonly called “iskan,” serves a different purpose.
It is issued after construction and indicates that the building has been completed in conformity with the relevant approved permit and project requirements so that its use can be authorized.
Turkish planning regulations formally describe the occupancy permit as the approved document demonstrating that the building has been completed in accordance with the projects attached to its building permit and allowing the building to be used.
The distinction can therefore be simplified as follows:
Building Permit = Permission to build
Occupancy Permit = Permission to use the completed building
A property can consequently have a valid building permit but still not have an occupancy permit.
This distinction is one of the most important matters for a purchaser to understand.
Why Might a Building Have a Permit but No Occupancy Permit?
There can be many reasons.
For example, the developer may not have completed all construction requirements, or portions of the building may differ from the approved project.
There may be deficiencies concerning common areas or technical works.
There may also be administrative or documentary requirements that have not been completed.
The absence of an occupancy permit does not therefore reveal the underlying problem by itself.
A buyer should investigate why the permit has not been issued.
There is an enormous difference between:
“the developer has completed the building and the occupancy-permit procedure is still being processed”
and
“the municipality refuses to issue an occupancy permit because several floors or independent units were constructed contrary to the approved plans.”
The second situation can create substantially more serious legal risk.
Can You Buy a Property Without an Occupancy Permit?
The absence of an occupancy permit does not necessarily make every title transfer legally impossible.
For example, Turkish property law recognizes kat irtifakı, a form of construction servitude typically established while a building has not yet been completed, as distinct from full kat mülkiyeti established over completed independent sections.
Official Tapu and Cadastre guidance explains that kat irtifakı can exist in relation to an unfinished building, whereas kat mülkiyeti concerns completed buildings.
Therefore, the fact that a buyer can obtain or transfer a registered right does not necessarily prove that the building has received its final occupancy approval.
This is why the title deed and municipal planning records must be examined together.
Kat İrtifakı and Kat Mülkiyeti Are Not the Same Thing
This distinction is especially important for foreign purchasers.
A title deed may identify the property as subject to kat irtifakı rather than kat mülkiyeti.
Kat irtifakı is generally connected with a building that is planned or under construction.
Kat mülkiyeti, by contrast, represents condominium ownership established over completed independent sections.
The Tapu and Cadastre General Directorate explains that where a building subject to kat irtifakı has received an occupancy permit, the transition to kat mülkiyeti can occur through the statutory registration process.
Accordingly, a purchaser seeing “kat irtifakı” on the title should investigate whether:
- construction has actually been completed,
- an occupancy permit exists,
- the independent section corresponds to the approved architectural plans,
- and there is any obstacle preventing transition to kat mülkiyeti.
Kat irtifakı is not automatically evidence of an unlawful property.
But in a fully completed and long-occupied building, continuing kat irtifakı status can be a reason to investigate the municipal records more carefully.
Why Is the Occupancy Permit So Important for Buyers?
The occupancy permit provides an important administrative indication that the completed structure corresponds with the building-permit project and has been approved for use.
Its absence may therefore signal potential issues such as:
- unauthorised construction,
- project deviations,
- unfinished common areas,
- illegal extensions,
- additional floors,
- conversion of common areas,
- technical deficiencies,
- or unresolved administrative problems.
Not every building without an occupancy permit necessarily suffers from all of these problems.
But the absence of the document means that the buyer should determine why it is missing before purchasing.
Utilities Do Not Prove That a Building Has an Occupancy Permit
A common misconception is:
“The apartment already has electricity and water, therefore it must have iskan.”
This is not necessarily correct.
The general framework of the Zoning Law connects occupancy authorization with access to certain municipal infrastructure services. However, Turkish legislation has also introduced transitional exceptions allowing temporary electricity or water connections for certain older buildings satisfying statutory conditions.
Parliamentary records concerning the amendment to Temporary Article 11 of the Zoning Law expressly explain that these temporary utility arrangements do not create an absolute vested right or transform an unlawful building into a fully permitted one.
Therefore:
Electricity does not equal iskan.
Water does not equal iskan.
A buyer should request and verify the occupancy permit itself.
What If the Building Is Different From Its Approved Plans?
This can be significantly more serious than simply missing paperwork.
Article 32 of the Zoning Law provides administrative mechanisms against buildings constructed without a permit or contrary to the permit and its approved annexes.
Where such an unlawful construction is identified, the competent authority may record the violation, seal the construction and stop the works. If the violation is not regularised in accordance with the statutory procedure, further administrative consequences—including demolition of unlawful parts—may potentially follow. Current official Ministry materials continue to refer to Article 32 procedures for structures constructed without permits or contrary to approved permits.
This creates obvious consequences for buyers.
Imagine purchasing an apartment with a large enclosed terrace.
The title deed appears normal.
Several years later, the municipality discovers that the terrace was legally designated as an open area in the approved architectural project and was later enclosed without authorization.
The fact that the current buyer did not personally carry out the illegal construction does not necessarily cause the planning violation to disappear.
This illustrates why legal due diligence must examine the property as physically constructed, not merely the ownership record.
Illegal Additional Floors Can Be Even More Serious
Suppose a building permit authorizes six floors but the developer constructs seven.
A buyer purchases an apartment on the additional floor.
This may create a significantly more serious situation than a minor internal alteration.
The buyer must investigate whether the independent unit legally exists within the approved project and whether the title registration accurately corresponds with the physical apartment.
Serious project violations may expose the structure or unlawful parts of it to administrative enforcement under zoning legislation.
This type of problem should normally be identified before the purchase price is paid.
Does an Occupancy Permit Guarantee That There Are No Problems?
No.
An occupancy permit is highly important, but it should not be treated as an absolute guarantee covering every possible legal or technical issue.
For example, unlawful alterations may have been carried out after the occupancy permit was issued.
An owner may have:
- enclosed a balcony,
- combined two apartments,
- converted a common area into private space,
- changed the intended use of an independent section,
- expanded into an attic,
- or created additional construction.
The Ministry has specifically addressed situations in which a building originally had an occupancy permit but construction contrary to the permit project was subsequently identified.
Consequently, buyers should compare the current physical condition of the property with both the occupancy documents and approved municipal plans.
What Is a “Yapı Kayıt Belgesi”?
Foreign buyers may occasionally encounter another document called a Yapı Kayıt Belgesi, historically issued under the so-called “İmar Barışı” framework.
This should not automatically be confused with an ordinary occupancy permit.
Official rules concerning the Yapı Kayıt Belgesi separately regulate structures without building permits, structures without occupancy permits and deviations from existing permits.
Therefore, if a seller says:
“There is no iskan, but we have a Yapı Kayıt Belgesi,”
the buyer should not treat the two documents as identical.
The scope, validity and legal consequences of the particular Yapı Kayıt Belgesi should be examined separately.
What If the Seller Never Told the Buyer That There Was No Occupancy Permit?
This raises not only zoning-law issues but potentially private-law and consumer-law issues.
If a professional developer sells a residential property to a consumer and the property does not possess characteristics that were contractually promised or reasonably expected, the rules governing defective goods under Law No. 6502 on Consumer Protection may become relevant.
The Ministry of Trade identifies four principal consumer remedies for defective goods:
- termination of the contract,
- reduction of the purchase price,
- free repair,
- or replacement with a defect-free equivalent,
depending on the circumstances and legal requirements.
Therefore, where a developer promised to deliver a properly permitted residence with kat mülkiyeti and occupancy approval but instead delivers a property that cannot obtain an occupancy permit due to construction violations, the buyer may have significant claims.
The appropriate remedy depends on the seriousness of the violation and the contractual documents.
Can the Buyer Terminate the Property Sale?
Potentially, depending on the circumstances.
Termination may become particularly relevant where the defect is serious enough to undermine the purpose of the transaction.
Examples might include situations where:
- the apartment cannot legally obtain the promised status,
- major parts of the property are unauthorised,
- the developer cannot remedy the zoning violation,
- or the property’s legal characteristics are fundamentally different from what was promised.
However, not every missing document automatically gives the purchaser the right to cancel a completed transaction.
The court would need to examine the contract, representations made by the seller, seriousness of the defect, possibility of remedy and the applicable legal regime.
Can the Buyer Ask for a Price Reduction?
Yes, this may be another important remedy in consumer transactions involving defective property.
A buyer may wish to retain the property but argue that its market value is lower because of the permitting problem.
For example, an apartment with serious uncertainty about obtaining an occupancy permit may have a different economic value from an otherwise identical fully compliant apartment.
In such cases, expert valuation evidence may be necessary to establish the economic effect of the legal defect.
The consumer-law framework recognizes proportionate reduction of the purchase price among the statutory remedies for defective goods.
What About Compensation?
Depending upon the circumstances, the buyer may potentially seek damages in addition to or alongside the appropriate primary remedy.
Possible losses could arise from:
- costs of regularising the property,
- necessary construction works,
- diminution in value,
- temporary accommodation,
- additional financing costs,
- or other provable financial losses caused by the seller’s breach.
The specific contractual relationship and legal basis must be examined individually.
There Is an Important Five-Year Period for Consumer Property Defects
Under Turkish consumer law, the general limitation period for claims concerning defects in residential or holiday-purpose immovable property is five years from delivery, subject to important exceptions, including circumstances involving concealed defects and more serious seller conduct.
The Ministry of Trade expressly states the five-year period applicable to residential and holiday-purpose immovable property in its current consumer guidance.
This is another reason why a purchaser discovering an occupancy or permitting problem should not simply leave the issue unresolved for years.
Can a Foreign Buyer Check These Documents?
Yes.
Foreign ownership does not eliminate the need—or ability—to conduct zoning and title due diligence.
Before purchasing, a buyer or lawyer should ordinarily examine both the Land Registry records and the municipal planning/construction file relating to the property.
The relevant municipality is generally the primary authority for building permit and occupancy permit matters.
A legal review should ideally determine whether the documents shown by the seller correspond to official municipal records rather than relying solely on photocopies supplied by the developer or real estate agent.
Essential Due Diligence Before Buying
Before purchasing a completed apartment in Turkey, a careful buyer should investigate at least:
1. Title deed
Who legally owns the property?
Are there mortgages, attachments, annotations or restrictions?
2. Property status
Is the title registered as kat irtifakı or kat mülkiyeti?
3. Building permit
Was a valid yapı ruhsatı issued for the project?
4. Approved architectural project
Does the apartment physically correspond to the approved plans?
5. Occupancy permit
Has a yapı kullanma izin belgesi been issued?
Does it cover the relevant block and independent unit?
6. Subsequent modifications
Have balconies, terraces, attics, basements or common areas been altered after approval?
7. Municipal enforcement records
Is there any zoning violation report, sealing procedure, demolition decision or similar administrative issue affecting the building?
A proper due diligence review should compare these documents with one another.
Possessing only a title deed is not enough.
A Typical High-Risk Scenario
Consider the following example.
A foreign purchaser buys a luxury penthouse in Istanbul.
The seller shows a title deed and states that the apartment is fully legal.
The apartment includes:
- an enclosed roof terrace,
- an additional bedroom,
- and a private section of the rooftop.
After the sale, the buyer discovers that the approved architectural project shows none of these areas as part of the independent apartment.
The building’s occupancy documentation relates to the original project.
The physical apartment has therefore been substantially modified after approval.
The buyer may now face several different legal questions simultaneously:
- Is the additional construction legal?
- Can it be regularised?
- Is there a municipal enforcement risk?
- Did the seller conceal a legal defect?
- Does the property have a lower market value?
- Can the buyer claim a price reduction?
- Can the buyer terminate the sale?
- Can damages be claimed?
This demonstrates why real estate due diligence should take place before, rather than after, title transfer.
The Title Deed Is Only One Part of the Investigation
One of the most dangerous assumptions in Turkish property transactions is:
“If the Land Registry transferred the property, everything about the building must be legal.”
That conclusion is too broad.
The Land Registry primarily records proprietary rights.
Municipal planning records, building permits, occupancy documents and approved architectural projects concern separate aspects of the property’s administrative and construction status.
The Tapu and Cadastre General Directorate itself distinguishes between kat irtifakı established in relation to incomplete construction and kat mülkiyeti for completed buildings, and links the occupancy-permit process with transition to condominium ownership.
A reliable investigation must therefore bring the title records and zoning records together.
Conclusion: Never Buy the Title Deed Without Investigating the Building Behind It
A building permit and an occupancy permit are not bureaucratic technicalities.
They are fundamental documents affecting the legal status and practical usability of real estate in Turkey.
The building permit answers the question:
“Was this building legally authorized to be constructed in this form?”
The occupancy permit answers another:
“Was the completed building approved for use in accordance with the permitted project?”
A buyer should therefore investigate not only whether these documents exist but whether:
- they remain relevant to the existing building,
- the apartment corresponds with the approved project,
- the occupancy permit covers the property,
- no subsequent illegal alterations were made,
- and there are no municipal enforcement proceedings.
For foreign investors in particular, purchasing real estate without checking these matters can transform an apparently attractive investment into a complicated dispute involving the developer, seller, municipality and sometimes other apartment owners.
In Turkish real estate transactions, therefore, the safest principle is simple:
Do not merely verify who owns the property. Verify whether the property itself is legally what you are being sold.
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