A foreign buyer of a new home is usually a consumer under Law No. 6502. Leaks, cracks, missing features, differences from the brochure or plan and a missing occupancy permit can all be defects. Notify the developer in writing at once, then choose repair (due within 60 working days), a price reduction, rescission or replacement, plus damages. The limit is five years from delivery, lifted where the defect was concealed by gross negligence or fraud. In 2026 claims under 186,000 Turkish Lira go to the consumer arbitration committee; larger ones need mediation, then the consumer court.
A foreign buyer collects the keys to a new flat in Istanbul, Antalya or Mersin, and within the first winter the problems start: water coming through the terrace ceiling, cracks running across the walls, a sea view that the brochure promised but the building next door now blocks, a car park space that was never built, or a building that still has no occupancy permit. Many buyers assume that once the title deed is signed the developer is out of reach. That is not the position under Turkish law. A new home is covered by statutory defect liability for years after delivery, and a buyer who acts in the right order, with the right evidence, can demand repair, a price reduction, rescission of the sale or compensation. In 2026 the rules that matter most are the five year limitation period for residential property, the 60 working day deadline for repairs to a home, and the 186,000 Turkish Lira threshold below which a consumer dispute must go to a consumer arbitration committee. This article explains how these rules work for a foreign buyer, what to do in the first weeks after a defect appears, and where the developer, the building inspection firm and the municipality each fit in.
Turkish law uses the word ayıp, a defect or lack of conformity, and a property with such a defect is described as ayıplı konut, a defective dwelling. The definition is wider than most buyers expect. Under Article 219 of the Turkish Code of Obligations, Law No. 6098, the seller is liable both for the absence of qualities it represented to the buyer "in any manner whatsoever" and for material, legal or economic defects that remove or considerably reduce the value of the property or the benefit the buyer expects from it. The seller is liable even if it did not know about the defect. The Consumer Protection Law, Law No. 6502, takes the same approach in Article 8.
The typical complaints are water ingress through roofs, terraces and window frames, damp and mould caused by missing insulation, cracks in plaster or in load bearing elements, faulty plumbing and electrics, poor sound insulation, uneven floors and lifts or heating systems that do not work as specified. A cosmetic crack and a crack in a column are very different problems, and only an expert can say which one you have. That distinction matters later, because it affects both the remedy you can realistically obtain and the liability of the building inspection firm described in section 10.
Article 8(2) of Law No. 6502 expressly treats as defective a property that lacks characteristics stated in advertisements, announcements or on an internet portal, or that is contrary to the quality notified by the seller. This covers the swimming pool, gym, generator, parking space, private garden or view that appeared in the sales material, as well as a flat built with a different layout, smaller rooms, cheaper materials or a different façade from the approved project. The developer can escape liability for advertising only in narrow cases: under Article 9(2), where the statement did not come from the seller and it proves it was not and could not have been aware of it, where the statement was corrected before the contract, or where the buyer's decision was not linked to it. Keep every brochure, screenshot, price list and WhatsApp message from the sales office, because they are evidence of what was promised.
A shortfall in floor area has its own rule. Under Article 244 of Law No. 6098, unless agreed otherwise, the seller must compensate the buyer if the property does not have the surface area stated in the sales contract. If the area entered in the land register is based on an official survey, the seller is liable only if it expressly undertook that area.
Both laws include "legal" deficiencies in the definition of a defect. A building completed without a yapı kullanma izin belgesi, the occupancy permit commonly called iskan, or one built in breach of its permit so that the municipality can seal or fine it, can therefore give rise to a defect claim alongside its administrative consequences. How the iskan is obtained and how it affects the conversion from floor easement to full condominium ownership is a separate subject, covered in our article on floor easement and condominium ownership. Here we focus on the buyer's claims against the developer when the building, legally or physically, is not what was sold.
The first question in any defect case is whether the purchase is a consumer transaction. The answer decides which statute applies, which court hears the case, whether court fees are charged and which step must be taken before a lawsuit.
Article 3 of Law No. 6502 defines a consumer as a natural or legal person acting for non-commercial or non-professional purposes, and expressly includes immovable property intended for residential or holiday purposes in the definition of "goods". A foreigner who buys a flat from a developer to live in, to use as a holiday home or to obtain residence is normally a consumer, and the developer, which sells for commercial purposes, is the seller. Nationality is irrelevant. Where the buyer purchases several units as a business, or buys through a trading company for letting, courts may find that the purchase was not for consumer purposes. Practice varies on investment purchases, so the point should be assessed on the facts before a claim is filed.
If the buyer is not a consumer, for example a company buying commercial units, or the seller is a private individual rather than a developer, the sale is governed by the general rules on sales in Articles 219 to 231 of Law No. 6098. Under Article 246, the rules on the sale of movable property apply by analogy to immovable property, with the special provisions on buildings in Article 244. Even for consumers, Article 83 of Law No. 6502 applies the general provisions where the consumer law is silent, so Law No. 6098 is always in the background.
Many foreigners buy before construction is finished. Articles 40 to 46 of Law No. 6502 regulate the ön ödemeli konut satışı, the prepaid housing sale. A developer may not conclude such a contract before a building permit has been obtained (Article 40(3)), a promise to sell must be made as a notarial deed (Article 41(1)), and the consumer has a 14 day right to withdraw without giving a reason (Article 43(1)). These rules concern how the contract is made. Once the home is delivered, defects in it are handled under the general defect rules in Articles 8 to 12. Problems with late handover are a separate issue, explained in our guide to off plan property delivery delays.
Turkish law distinguishes between defects that an ordinary inspection would reveal and defects that only appear later. The distinction is mainly relevant to the buyer's duty to examine and to notify.
Under Article 223 of Law No. 6098, the buyer must examine the property as soon as possible in the ordinary course of things and notify the seller of any defect within a reasonable time. A buyer who neglects to examine and notify is deemed to have accepted the property. Under Article 222, the seller is not liable for defects the buyer knew about when the contract was made, and is liable for defects the buyer could have seen on a sufficient inspection only if it expressly promised that no such defect existed. For consumers, Article 10(2) of Law No. 6502 similarly excludes defects the consumer knew or could be expected to know at the time of the contract. In practice this means that a missing balcony railing or a visibly cracked tile should be recorded on the handover protocol, the teslim tutanağı, before you sign it.
The deemed acceptance in Article 223 does not apply to defects that cannot be found by an ordinary examination, the gizli ayıp or hidden defect. Leaks that appear only after the first heavy rain, insulation failures that show up as mould months later, and structural cracks are typical examples. But Article 223 adds a condition: once a hidden defect is discovered, the seller must be notified immediately, failing which the property is deemed accepted with that defect. A buyer who notices a leak in November and complains in May risks losing the claim, however serious the defect.
Article 10(1) of Law No. 6502 presumes that defects appearing within six months of delivery existed at delivery, and puts the burden of proving the contrary on the seller. The presumption does not apply where it is incompatible with the nature of the goods or the defect. After six months, the buyer must prove that the defect existed at delivery, which is where expert evidence becomes decisive.
Law No. 6502 does not set a specific notice period for consumers, but because Article 83 refers back to the general provisions and courts differ on how strictly they apply the notice duty, the safe approach for every buyer is to notify promptly and in a form that can be proved. A complaint made by telephone to the sales office, or by a message to a site manager, is hard to prove and often disputed.
The standard method is an ihtarname, a formal notice served through a notary. A notice should describe each defect, state when it was discovered, attach photographs, name the remedy you choose (repair, price reduction or rescission, as explained in section 5) and give the developer a reasonable time to respond. A buyer living abroad can have a Turkish lawyer send the notice under a power of attorney, which can be issued at a Turkish consulate. Keep the notary's service record: the date of service is often the starting point of the developer's repair deadline.
A practical point on payments: if an instalment is still outstanding, stopping payment without legal advice can put you in default under the contract. Note, however, that under Article 231 of Law No. 6098, a buyer's right to raise a defect as a defence does not lapse with the two year period, provided the defect was notified within two years of delivery. Proper notice therefore protects you both as a claimant and as a defendant.
Article 11 of Law No. 6502 and Article 227 of Law No. 6098 give the buyer a set of seçimlik haklar, optional rights, from which the buyer chooses one. Under Law No. 6502 the seller must fulfil the right the consumer prefers. The choice should be made deliberately, after the defect has been assessed, because it shapes the whole case.
The buyer may ask for the defect to be repaired without charge, with all costs borne by the seller, provided this does not involve excessive expense. Under Article 11(4) of Law No. 6502, a repair request for a home or holiday property must be fulfilled within 60 working days of the request being addressed to the seller, producer or importer. If the developer misses the deadline, the consumer may switch to another optional right. Article 11(2) makes the seller, producer and importer jointly liable for the repair right, and Article 11(6) puts all costs of exercising the rights on the party fulfilling them.
The buyer may keep the property and ask for the price to be reduced in proportion to the defect. This is the most common outcome in practice where the defect cannot be fully cured, for example a smaller area, a missing facility or permanent noise problems. Under Article 11(5) of Law No. 6502, the amount of the reduction must be refunded immediately. The court calculates the reduction with expert help, usually by comparing the value of the property with and without the defect.
The buyer may withdraw from the contract by declaring readiness to return the property, in which case the full price must be refunded and the title is transferred back. Under Law No. 6098 Article 227, the judge may order repair or a price reduction instead if the circumstances do not justify rescission. Law No. 6502 contains no equivalent sentence, but a claim to rescind over a minor defect may still be challenged by the developer as contrary to good faith, and practice varies. Rescission is realistic where the defect is serious: structural damage, a building that cannot obtain an occupancy permit, or a flat fundamentally different from what was sold. For a foreigner whose residence permit or citizenship application depends on the property, rescission also has knock on effects that must be considered before it is chosen.
Replacement with an equivalent non-defective unit is available "where possible" and is rare for real estate, although a developer with unsold units in the same project may agree to it. In addition to any optional right, the buyer may claim compensation under Law No. 6098 (Article 11(6) of Law No. 6502 and Article 227 of Law No. 6098). Typical items are the rent for alternative accommodation while repairs are carried out, damaged furniture and belongings, lost rental income on a letting property and the cost of private expert reports.
Some foreigners do not buy a finished unit but hire a contractor to build a villa on their own land. That is a eser sözleşmesi, a contract for work, and Articles 474 to 478 of Law No. 6098 apply. Under Article 474, the owner must examine the work after delivery as soon as possible and notify defects within an appropriate time, and either party may, at its own cost, have the work examined by an expert and recorded in a report. Article 475 gives the owner the choice of withdrawal (only where the work is unusable or cannot fairly be accepted), a price reduction or repair at the contractor's cost, plus damages. Withdrawal is excluded where the building stands on the owner's land and removing it would cause excessive harm, which is almost always the case for a house.
Under Article 476, the owner loses these rights if the defect results from the owner's own instructions given despite the contractor's express warning. Under Article 477, after express or implied acceptance the contractor is released, except for defects it intentionally concealed and which a proper examination could not reveal, and a defect that appears later must be notified without delay. If the owner is a consumer and the contractor works commercially, Article 15 of Law No. 6502 on defective services also applies, with a 30 working day deadline for repair or re-performance. For the special arrangement where a landowner exchanges land for flats, see our article on construction for land share agreements.
Most defect cases are won or lost on the expert report. The developer will usually argue that the defect was caused by the buyer, by poor maintenance or by later alterations, and once you repair the problem yourself the evidence disappears.
Article 400 of the Code of Civil Procedure, Law No. 6100, allows a party to ask the court for a site inspection, expert examination or witness hearing to establish a fact it will rely on in a future lawsuit. This is delil tespiti, detection of evidence. A legal interest is required, and it is presumed where the evidence is likely to be lost or become much harder to prove if not secured immediately. Under Article 401, the request goes to the court that will hear the main case or to the civil court of peace where the property is located. The petition must state the facts, the questions for the expert and the reason for urgency (Article 402(1)), and nothing happens until the costs set by the court are advanced (Article 402(2)). Under Article 405, the resulting file is joined to the main case and either party may rely on it.
Normally the developer is notified and may attend and submit objections and additional questions within one week (Article 402(3)). Where necessary to protect the requesting party, Article 403 allows the detection to be carried out without first notifying the other side, which then has one week from service to object. Do not treat a detection of evidence as a substitute for a lawsuit, and do not rely on it to stop the limitation clock: file the main claim in time.
A report from an independent civil engineer, commissioned before the court process, helps you decide which remedy to pursue and frame the questions for the court expert. The court appoints its own expert, and the parties may, within two weeks of service of the report, ask for it to be completed, clarified or for a new expert to be appointed under Article 281 of Law No. 6100, with one further extension of up to two weeks where technical work is needed. Experts in construction cases often value defects conservatively, so a reasoned objection supported by technical evidence can change the outcome. Our article on how to challenge an expert report explains the method.
Limitation periods differ depending on which law applies and when the clock starts. The table below sets out the main periods.
| Situation | Limitation Period |
|---|---|
| Consumer buys a home or holiday property from a developer (Law No. 6502, Article 12) | Five years from delivery of the property, unless the law or contract gives longer, even if the defect appears later |
| Consumer buys a second hand home from a professional seller (Law No. 6502, Article 12(2)) | Seller's liability may not be reduced below three years |
| Buyer who is not a consumer buys a building (Law No. 6098, Article 244) | Five years from the passing of ownership; twenty years where the seller is at gross fault |
| Contract for work, immovable structure (Law No. 6098, Article 478) | Five years from delivery; twenty years where the contractor is at gross fault |
| Consumer contract for construction services (Law No. 6502, Article 16) | Two years from performance of the service, unless the law or contract gives longer |
| Defect concealed through gross negligence or fraud (Law No. 6502, Articles 12(3) and 16(2)) | The limitation rules do not apply |
| Building inspection firm (Law No. 4708, Article 3) | Fifteen years for the load bearing system, two years for other parts, from the occupancy permit date |
| Repair request for a home under Law No. 6502 (Article 11(4)) | Developer must complete repair within 60 working days of the request |
Note the different starting points. Under Law No. 6502 the period runs from delivery of the property; under Article 244 of Law No. 6098 it runs from the passing of ownership, which in Türkiye means registration at the land registry. Where handover and title transfer happen on different dates, the earlier date should be used as the working deadline. The two year rule in Article 231 of Law No. 6098 is written for movables; for buildings the special five year rule in Article 244 applies. An exclusion of liability clause is void where the seller is at gross fault (Article 221 of Law No. 6098), and in consumer contracts a standard clause limiting the buyer's defect rights may be void as an unfair term under Article 5 of Law No. 6502.
For consumers, the route depends on the value of the claim. For applications made in 2026, disputes worth less than 186,000 Turkish Lira must go to a provincial or district tüketici hakem heyeti, consumer arbitration committee, rather than to court. Our guide on applying to the consumer arbitration committee covers that process. Most new build disputes, especially price reduction and rescission claims, exceed the threshold and go to the consumer court.
Before a consumer court lawsuit, mediation is a condition for filing under Article 73/A of Law No. 6502. Disputes within the arbitration committee's competence, objections to committee decisions and disputes arising from rights in rem over immovable property are excluded from that requirement. If mediation fails, the case goes to the consumer court. Under Article 73 of Law No. 6502, consumer actions are exempt from court fees and may be filed at the consumer court of the consumer's domicile, although the court will still ask for an advance on expert and service costs. The procedural rules are explained further in our article on the jurisdiction of consumer courts.
A foreign claimant should also be aware of Article 48 of the Private International Law Code, Law No. 5718: a foreign person bringing an action may be required to provide security for costs, unless exempted on the basis of reciprocity. Claims by buyers who are not consumers go to the general civil courts, where court fees are payable on the value of the claim.
The developer is not the only party with legal responsibility for a defective building. Under the Building Inspection Law, Law No. 4708, most buildings must be supervised by a licensed yapı denetim kuruluşu, building inspection firm. Article 2 requires the firm, among other things, to check that the building is constructed in accordance with its permit, its annexes and the legislation, to check that materials and workmanship conform to the project, specifications and standards, and to report breaches to the authorities.
Article 3 of Law No. 4708 makes the inspection firm, its inspecting architects and engineers, the project designers, laboratory staff and the contractor liable, in proportion to their fault, to the owner and the administration for damage to the building caused by work that is contrary to the permit or to technical rules, or that is incomplete, faulty or defective. This liability lasts fifteen years for the load bearing system and two years for other parts, counted from the date of the occupancy permit. Whether an individual unit buyer can sue the inspection firm directly, and in what proportion, is assessed case by case; in structural cases it is common to bring the developer and the inspection firm into the same proceedings, so that the expert apportions fault between them. A separate complaint to the provincial directorate of environment and urbanisation can trigger administrative sanctions against the firm, but does not itself compensate the buyer.
The municipality issues the building permit and the occupancy permit. Under Article 30 of the Zoning Law, Law No. 3194, the occupancy permit is granted after it is established that the building conforms to its permit and there is no technical objection to its use, and that permit does not release the owner from liability for breaches. Two warnings apply. First, reporting a building that breaches its permit can lead the municipality to seal it, record the breach on the title deed and impose fines under Article 32, which may affect owners as well as the developer, so get advice before filing a complaint. Second, a damages claim against the municipality for faulty supervision is heard by the administrative courts, and where it rests on an administrative action, Article 13 of the Administrative Procedure Law, Law No. 2577, requires a prior application to the administration within one year of learning of the action and in any case within five years of it.
From experience with foreign clients, the claims that fail usually fail for procedural reasons rather than because the defect was not real. The following order of steps avoids the common traps:
If the defect affects several flats, such as a leaking roof or a failed façade, coordinate with the other owners. Common areas are managed under the condominium regime, and a joint expert examination is cheaper and more persuasive than ten separate ones. Our real estate and construction law team regularly acts for groups of foreign owners in the same project.
If you bought as a consumer, five years from delivery of the property under Article 12 of Law No. 6502; the period does not apply where the developer concealed the defect through gross negligence or fraud.
No. It may prevent claims for defects you knew about or that were obvious on inspection, but liability for hidden defects continues for the statutory period.
A single home bought for living, holidays or residence is normally a consumer purchase; buying several units as a business or through a trading company may not be, and courts assess this on the facts.
Immediately after you discover it. Under Article 223 of Law No. 6098, a hidden defect that is not notified at once is treated as accepted, so send written notice within days.
For a home or holiday property bought by a consumer, 60 working days from the repair request under Article 11(4) of Law No. 6502; after that you can choose another remedy.
Yes, rescission is one of the optional rights, but it is realistic mainly for serious defects such as structural damage or a fundamentally different property, and the title must be returned.
The seller must compensate the shortfall under Article 244 of Law No. 6098 unless agreed otherwise, and a smaller area also supports a price reduction claim.
It can be, because both Law No. 6098 and Law No. 6502 treat legal deficiencies as defects; whether it justifies rescission or a price reduction depends on whether the permit can still be obtained.
Yes. Article 8(2) of Law No. 6502 treats features promised in advertisements and on websites as part of what the consumer is entitled to receive.
For consumer court cases, yes, under Article 73/A of Law No. 6502; disputes below 186,000 Turkish Lira in 2026 go to the consumer arbitration committee instead.
Not before the evidence is secured. Apply for a detection of evidence under Article 400 of Law No. 6100 or obtain a detailed expert report first, otherwise the developer may deny the defect existed.
The firm is liable in proportion to its fault for fifteen years for the load bearing system and two years for other parts from the occupancy permit date, under Article 3 of Law No. 4708; a direct claim by a unit buyer is assessed case by case.
No. A Turkish lawyer can send notices, attend the inspection and conduct the case under a power of attorney, which you can sign at a Turkish consulate abroad.
Consumer court actions are exempt from court fees under Article 73 of Law No. 6502, but you must advance expert and service costs, and a foreign claimant may be asked for security for costs unless reciprocity applies.
A defective new build in Türkiye is a legal problem with clear statutory answers. A consumer buyer has five years from delivery under Law No. 6502 to claim repair, a price reduction, rescission or replacement, plus damages, and the developer has 60 working days to complete a repair once asked. The claim depends on prompt written notice, evidence secured before anything is repaired, and choosing the right forum, from the consumer arbitration committee for claims under 186,000 Turkish Lira to mediation and the consumer court above it, with the building inspection firm and, in some cases, the municipality as additional parties.
If your new home has leaks, cracks, missing features or is not what the plan showed, the order of your next steps matters more than the size of the defect. Before you sign a settlement, let the developer start repairs or send your first notice, discuss the file with our legal team.
