Construction Defects in Türkiye: Warranty Liability for Property Buyers
A defective building is not a commercial negotiation in Türkiye — it is a statutory warranty regime. The seller answers for defects even without knowing of them, buildings carry their own five-year limitation period (twenty on gross fault), and a consumer buyer of a home gets a second layer on top.
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A seller in Türkiye answers for defects in what it sold even where it did not know of them, and for every quality it communicated in any manner (Article 219 of Turkish Code of Obligations No. 6098). Claims arising from a building being defective are time-barred five years from the transfer of ownership, and twenty years where the seller is grossly at fault (Article 244/3) — not the general two years. Where the buyer is a consumer and the property is a home or holiday immovable, a second layer applies under Consumer Protection Law No. 6502: four elective remedies, a presumption in the buyer’s favour for the first six months, and a five-year period that does not run at all where the defect was concealed by gross fault or fraud. The position below is as at July 2026.
What counts as a defect?
Article 219 runs two tests together: departure from what was promised — the qualities the seller communicated in any manner — and absence of what the property objectively ought to have, meaning material, legal or economic defects that destroy the value for the intended use or materially reduce the benefits expected. Liability is strict, not fault-based. Article 8 of Law No. 6502 adds a commercially significant point: a good is also defective where it lacks features stated on the packaging, label, user manual, internet portal, or in advertising. Where units are sold off renderings and promises of a pool, a garden and parking, that turns the brochure into contractual content.
Sale or works contract?
The characterisation changes both the remedies and the periods. A buyer of a completed unit, or of one finished against a price paid to the seller, is under the sale provisions, and Article 227 gives four elective remedies: rescission on declaring readiness to return the property, price reduction in proportion to the defect, free repair unless it requires excessive expense, and replacement where possible — damages reserved.
A party who commissioned construction — including a landowner in a land-share-for-construction arrangement — is instead under the works contract (eser sözleşmesi) provisions in Articles 470 onwards, where Article 475 gives only three remedies: rescission, price reduction, free repair. Rescission is doubly restricted: available only where the work is so defective that the employer cannot use it or cannot in fairness be required to accept it, and unavailable altogether where the work stands on the employer’s own immovable and removing it would cause excessive harm. For buildings that closes the rescission door and moves the fight to price reduction, repair and damages. Consumer law applies either way: Article 3/1(l) of Law No. 6502 expressly brings works contracts within the definition of a consumer transaction.
Notice — and the 30-day myth
Article 223 requires the buyer to inspect as soon as the ordinary course of business allows and to notify within an appropriate period; neglecting either step means the property is deemed accepted. Article 474 imposes the same duty under a works contract. But Law No. 6502 contains no notice deadline expressed in days for consumer sales — Articles 8 to 12 know no such rule, and the widely repeated “30 days” belongs to repealed legislation. “Appropriate period” is an objective assessment, not a figure, so the safe course is the same either way: written notice through a notary (noter) as soon as the defect is found.
Two rules cut the buyer’s way. Article 225 stops a grossly at-fault seller from escaping liability because notice was late, as it does for defects a professional seller ought to know; and Article 221 voids any clause excluding or limiting defect liability where the seller is grossly at fault. Latent defects then have their own rule, and they dominate construction disputes because structural, waterproofing and buried-services problems do not show at handover: Article 223/2 disapplies the deemed-acceptance presumption to a defect ordinary inspection could not reveal, requiring notice immediately on discovery, while Article 477 releases the contractor once the work is accepted except for defects it intentionally concealed.
Signing the handover record without reservation can be read as implied acceptance. If you must take delivery before the snagging list is closed, sign subject to an express written reservation itemising what is outstanding.
How long you have, and what consumer law adds
In sale the general period is two years from transfer (Article 231/1), but buildings displace it: Article 244/3 gives five years from the transfer of ownership and twenty years where the seller is grossly at fault. Article 478 runs parallel periods under a works contract from delivery — five years for immovable structures, twenty on the contractor’s gross fault. Under consumer law, Article 12/1 gives five years from delivery for homes and holiday immovables, and Article 12/3 carries the strongest rule of all: the limitation provisions do not apply where the defect was concealed by gross fault or fraud.
Consumer law also shifts the evidence. Article 10/1 treats defects appearing within six months of delivery as having existed at delivery and puts proof that the good was not defective on the seller. Repair or replacement must be completed within 60 working days for homes and holiday immovables — not the 30 working days applicable to movables — failing which the consumer may turn to the other remedies (Article 11/4). Damages may be claimed alongside (Article 11/6), and the producer and importer are jointly and severally liable with the seller for repair and replacement (Article 11/2).
The seismic and inspection paper trail
The construction permit date fixes the technical code: the Turkish Building Earthquake Code (Türkiye Bina Deprem Yönetmeliği), published on 18 March 2018, entered into force on 1 January 2019 and repealed the 2007 regulation on buildings in seismic zones, so anything permitted earlier was designed under the older code. Ask also for the inspection file, laboratory reports, the soil and foundation study and the building identity certificate (bina kimlik sertifikası) added to Law No. 4708 by Law No. 7410 of 10 June 2022 — noting that Article 1 excludes some buildings from inspection altogether, including standalone buildings of no more than two storeys above the basement not exceeding 200 m². And although Article 30 of Zoning Law No. 3194 requires an occupancy permit (yapı kullanma izni) before a completed building may be used, the same article states that it does not relieve the owner of liability for non-compliance with the law, the permit or its annexes. It is no certificate of structural soundness.
Who is liable, and where the claim goes
The seller answers under the sale, including a developer selling units from its own share; the contractor answers under the works contract to whoever commissioned it. Outside any contractual link there is a statutory route: Article 3 of Law No. 4708 makes building inspection companies, supervising architects and engineers, project authors, laboratory personnel and the building contractor liable in proportion to their fault, to the building owner and the relevant administration, for damage caused by the building being constructed contrary to the permit and its annexes, or to the rules of science, art and health, or defectively — for fifteen years for the load-bearing system (taşıyıcı sistem) and two years for non-load-bearing parts, running from the occupancy permit. Article 28 of Law No. 3194 points the same way for technical supervisors (fenni mesul), the contractor and the site manager. For common parts, Article 35 of Condominium Law No. 634 puts measures to prevent a period lapsing or a right being lost within the manager’s (yönetici) duties, taken on the owners’ behalf — though that does not make an individual buyer dependent on the block: each owner may still pursue its own contract and claim, for a defect in the common parts, the portion corresponding to its land share (arsa payı).
For 2026, consumer disputes worth less than TRY 186,000 go to the Consumer Arbitration Committee, which cannot hear anything above that figure; above it the consumer court has jurisdiction under Article 73/1 — a jurisdiction not capped by any upper monetary limit. Consumer claimants are exempt from court fees and may sue where the consumer resides. Mediation is a condition of suit (Article 73/A), with disputes arising from the ayn of the immovable expressly excluded. Article 400 of Civil Procedure Law No. 6100 also allows pre-action preservation of evidence — the natural step for a defect about to disappear under repair work.
A construction defect is a question of characterisation, then of time, then of proof. What usually costs a buyer the claim is silence: accepting delivery without reservation, relying on email instead of notarial notice, waiting until the evidence has been painted over. See also apartment delivery delay rights, suing a developer in the Turkish consumer courts, buying property in Türkiye as a foreigner and our real estate practice.
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What a buyer does on discovering a construction defect
- 01
Document the defect first
Photograph it with a clear date and keep the contract, the sales brochure and specification, the handover record and all correspondence — advertised features form part of the obligation under Article 8 of Law No. 6502.
- 02
Identify the governing regime
Did you buy a completed unit (sale) or commission construction (works contract)? And are you a consumer under Article 3/1(k)? The remedies and the periods both turn on the answer.
- 03
Serve notice through a notary
Formal notice fixes the date and content of discovery, forecloses argument about the "appropriate period" in Article 223 or 474, and records which remedy you are electing.
- 04
Secure the evidence
Article 400 of Civil Procedure Law No. 6100 allows a pre-action application for inspection or expert examination where there is a legal interest; Article 474/2 lets either party to a works contract obtain an expert report at its own expense.
- 05
Pick the forum
The consumer arbitration committee below the annual threshold, the consumer court above it after mediation where mediation is a condition of suit, noting the exception for disputes arising from the ayn of the immovable.
Frequently asked questions
How long is the warranty on construction defects in Türkiye?
It depends on which regime governs. In a sale, Article 244/3 of Turkish Code of Obligations No. 6098 provides that claims arising from a building being defective are time-barred five years from the transfer of ownership, and twenty years where the seller is grossly at fault — a special rule that displaces the general two-year period in Article 231. Under a works contract, Article 478 gives two years for works other than immovable structures, five years for immovable structures, and twenty years on the contractor's gross fault whatever the nature of the work, all running from delivery. Where the buyer is a consumer and the property is a home or holiday immovable, Article 12 of Law No. 6502 sets liability at five years from delivery, and not less than three years for a second-hand home. In every branch the protection widens at the same point: Article 12/3 disapplies the limitation rules entirely where the defect was concealed by gross fault or fraud.
Do I have to notify the seller within 30 days of finding a defect?
There is no provision in Consumer Protection Law No. 6502 imposing a notice deadline counted in days for consumer sales — that rule is commonly repeated but belongs to repealed legislation. What does exist is the general burden: Article 223 of the Code of Obligations requires the buyer to inspect as soon as the ordinary course of business allows and to notify the seller of any defect within an *appropriate period*, failing which the goods are deemed accepted; Article 474 imposes the same duty on the employer after delivery under a works contract. "Appropriate" is an objective assessment, not a fixed figure. The safe practice is therefore identical in every case: written notice through a notary as soon as the defect is discovered.
What legally counts as a defect in an apartment?
Two tests run in parallel: departure from what was promised, and absence of what the property objectively ought to have. Under Article 219 of the Code of Obligations the seller answers for qualities it communicated in any manner, and for material, legal or economic defects that destroy the value of the property for its intended use or materially reduce the benefits the buyer expects — expressly **whether or not the seller knew** of them. Article 8 of Law No. 6502 restates the test in more detail and adds a point that matters commercially: a good is also defective where it lacks one or more of the features stated on the packaging, label, user manual, internet portal, or in advertising. In a market where units are sold from renderings and promises of shared facilities, the brochure forms part of the obligation rather than being mere puffery.
I found a hidden defect years after delivery — is it too late?
Not necessarily. Latent defects have their own rule. Article 223/2 expressly disapplies the deemed-acceptance presumption to a defect that ordinary inspection could not have revealed; if such a defect later emerges, the seller must be notified **immediately**, failing which the property is deemed accepted with it. The parallel in works contracts is Article 477: the contractor is released from all liability once the work is expressly or impliedly accepted, **except** for defects it intentionally concealed and which due inspection would not have detected. The remaining barrier is limitation — five years for immovable structures, twenty on gross fault — and under consumer law that barrier falls away entirely where concealment by gross fault or fraud is established (Article 12/3).
Who do I sue: the seller, the contractor, or the building inspector?
Start with the contract. A buyer of a completed unit sues the **seller** under the sale provisions, even where that seller is the developer. A party who commissioned construction — including a landowner in a land-share-for-construction arrangement — sues the **contractor (yüklenici)** under the works-contract provisions. Outside any contractual link there is a separate statutory route: Article 3 of Building Inspection Law No. 4708 makes the building inspection company, the supervising architects and engineers, the project authors, the laboratory personnel and the building contractor liable **in proportion to their fault**, to the building owner and to the relevant administration, for damage arising because the building was constructed contrary to the permit and its annexes or to the rules of science, art and health, or defectively. Article 28 of Zoning Law No. 3194 points the same way for technical supervisors, the contractor and the site manager.
How do I check a building's structural and seismic paperwork before buying?
By reading documents, not by inspection alone. Ask for the **construction permit (yapı ruhsatı)** and its date, because the date fixes which technical code the building was designed under: the Turkish Building Earthquake Code (Türkiye Bina Deprem Yönetmeliği), published in the Official Gazette on 18 March 2018, entered into force on **1 January 2019** and repealed the 2007 regulation on buildings in seismic zones. Then ask for the **occupancy permit (yapı kullanma izni)** required by Article 30 of Law No. 3194, the soil and foundation study, the building-inspection file and laboratory reports, and the **building identity certificate (bina kimlik sertifikası)** introduced into Law No. 4708 by Law No. 7410 of 10 June 2022. One caveat: Article 1 of Law No. 4708 excludes certain buildings from inspection altogether, including standalone buildings of no more than two storeys above the basement and not exceeding 200 m² of total construction area — for those, no inspection file exists to rely on.
Does it matter whether my contract is a sale or a works contract?
Yes — both the remedies and the periods change. In a sale, Article 227 gives four elective remedies: rescission on declaring readiness to return the property, price reduction in proportion to the defect, free repair unless it requires excessive expense, and replacement with a defect-free equivalent where possible, with damages reserved under the general provisions. In a works contract, Article 475 gives only three: rescission, price reduction and free repair — and rescission is doubly restricted. It is available only where the work is so defective, or so contrary to the contract, that the employer cannot use it or cannot in fairness be required to accept it; and it is **unavailable altogether** where the work was built on the employer's own immovable and removing it would cause excessive harm. In practice that closes the rescission route for buildings and moves the dispute to price reduction, repair and damages.
Where is a construction-defect claim brought in Türkiye?
Where the buyer is a consumer, through the consumer forum. **For 2026**, disputes worth less than **TRY 186,000** must go to the Consumer Arbitration Committee (Tüketici Hakem Heyeti), which cannot hear anything above that figure. Above the threshold the **consumer court** has jurisdiction under Article 73/1 of Law No. 6502 — and that jurisdiction is **not capped by any upper monetary limit**. Consumer claimants are exempt from the fees under Fees Law No. 492 (Article 73/2), may sue where the consumer resides (Article 73/5), and the claim proceeds under the simplified procedure (Article 73/4). Mediation is a condition of suit under Article 73/A, but disputes **arising from the ayn of the immovable** are expressly excluded from that requirement. Where the relationship is not a consumer transaction, the ordinary civil courts apply.
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