Earthquake Safe Buildings in Turkey (2026):
Property Buyer's Risk Guide

Yes. Turkey is one of the most seismically active countries in the world. Roughly 95% of Turkey's land area sits in an earthquake risk zone, and the great majority of the population lives on or near an active fault. The country sits across two major fault systems: the North Anatolian Fault (running from eastern Turkey westward through the Marmara region toward Istanbul) and the East Anatolian Fault (running through southeastern Turkey). Major earthquakes have struck repeatedly — 1999 İzmit (magnitude 7.6, over 17,000 deaths), 2011 Van, 2020 İzmir/Samos (magnitude 7.0), and the February 2023 Kahramanmaraş sequence (magnitude 7.8 and 7.5, over 50,000 deaths in Turkey alone).

No single check is conclusive, but the strongest combined indicators are: (1) construction year — buildings built under the 2007 or 2018 seismic codes are held to materially higher standards than older stock; (2) a valid yapı denetim (independent building inspection) certificate, mandatory nationwide since 1 January 2011; (3) a documented zemin etüdü (soil survey) — soft alluvial or reclaimed soil amplifies shaking significantly; (4) visible reinforced concrete (betonarme) quality and rebar (demir) condition; and (5) a valid yapı ruhsatı (building permit) and İskan/yapı kullanma izin belgesi (habitation certificate) confirming the finished building was signed off against the approved plans. None of these alone proves safety — a structural engineer's on-site assessment is the only way to be certain for older buildings.

The highest-risk category is buildings built before 1975, when Turkey had no meaningful modern seismic code. Buildings from 1975–1998 followed an early disaster-area building code (ABYYHY) that is well below current standards. Buildings from 1999–2006 were built under the tightened 1998 code introduced after the İzmit earthquake, but enforcement and inspection quality were inconsistent in this period. Buildings from 2007–2018 were built under the DBYBHY 2007 code, a substantial improvement. Buildings from 2019 onward follow TBDY 2018 (Türkiye Bina Deprem Yönetmeliği), Turkey's current, internationally comparable seismic code, in force since 1 January 2019. Age alone is not decisive — a pre-1999 building may have been structurally strengthened (güçlendirme), and a post-2019 building can still be poorly built if inspection was lax, so always pair the construction year with the other due-diligence checks.

DASK (Doğal Afet Sigortaları Kurumu — the Natural Disaster Insurance Institution) runs Turkey's Zorunlu Deprem Sigortası (Compulsory Earthquake Insurance). It is mandatory for all residential properties within municipal boundaries, and Turkish notaries will not process a title deed (tapu) sale or a new utility (electricity/water/gas) connection without a valid, current DASK policy. DASK covers direct material damage to the building structure — foundations, walls, columns, ceilings, stairs, elevators, roof — caused by earthquakes and their direct consequences (fire, explosion, tsunami, landslide triggered by the quake). It does not cover contents, debris removal, temporary housing, lost rent, or personal injury/death — those require separate voluntary policies (DASK's own optional top-up, or a private home/contents policy).

The premium is based on the dwelling's gross floor area (m²), its construction type (reinforced concrete vs other), and its official DASK risk group (Istanbul and much of the Marmara and East Anatolian Fault zone fall in the highest-risk groups; the Mediterranean coast is generally lower). DASK publishes an updated m² construction-cost tariff and premium rate table, and both the maximum insurable coverage amount and the tariff are adjusted periodically — since January 2024, the maximum coverage is increased automatically every month in line with Turkey's Producer Price Index, at no extra cost to the policyholder. In practical terms this means the exact premium changes through the year, and any specific lira figure you read — including in an older version of this page — is likely already out of date; a small apartment in a lower-risk coastal group generally costs meaningfully less than a larger reinforced-concrete apartment in a high-risk zone like Istanbul, but the gap and the absolute numbers shift with each tariff update. Always get a live quote from dask.gov.tr or a licensed Turkish insurer rather than relying on a number from an older article — the tariff genuinely moves month to month.

Kentsel dönüşüm (urban transformation) is Turkey's government programme, based on Law No. 6306 (2012), for identifying and rebuilding seismically deficient building stock. Once a building or area is formally designated for transformation, redevelopment can proceed even over a minority objection once the owners holding a simple majority of the building's shares agree — a 2023 amendment (Law No. 7471) lowered this threshold from the original two-thirds requirement specifically to unblock stalled multi-owner buildings. For buyers, purchasing in a declared or planned kentsel dönüşüm zone means the building may eventually be scheduled for demolition and reconstruction — this creates both risk (disruption, relocation) and potential upside (a modern, code-compliant replacement unit, sometimes with government-backed rent assistance during rebuilding). Ask your lawyer and the local belediye (municipality) directly whether a specific parcel is inside a declared urban transformation zone before you buy.

Riskli bina (at-risk building) is a formal designation under Law No. 6306, made after a licensed engineer or an authorised institution produces a structural risk report (riskli yapı tespit raporu) on the building. Once a building is determined to be risky, the finding is posted on the building itself and announced at the local muhtarlık (neighbourhood administration) for two days, which counts as formal notice to all owners. Owners who disagree have 15 days from that notice to file a written objection with the provincial directorate; if the objection is rejected (or none is filed), the owners are then given a minimum of 60 days to demolish the building themselves before the authorities can order compulsory demolition. Before buying any older apartment, ask your lawyer to check specifically for an existing riskli bina designation on that parcel — it materially affects both value and your practical rights as a new owner.

Useful questions: (1) Can I see the zemin etüdü (soil survey) report for this specific site? (2) What concrete strength class (beton sınıfı, e.g. C25/C30) was used, and is there a test report? (3) Does the project comply with TBDY 2018 (Türkiye Bina Deprem Yönetmeliği, in force since January 2019)? (4) Which yapı denetim firm is responsible for inspection, and can I see their certification? (5) Has an independent (non-developer-appointed) structural engineer reviewed the design? (6) What is the site's official risk classification on AFAD's seismic hazard map? A developer who is evasive or cannot produce these documents on request is a serious red flag, whatever the marketing brochure claims about "earthquake-resistant construction."

Highest relative risk: the Marmara region including Istanbul (proximity to the North Anatolian Fault, with a long-anticipated major Istanbul earthquake widely discussed by Turkish seismologists), southeastern Turkey along the East Anatolian Fault (epicentre of the February 2023 Kahramanmaraş sequence, which hit Hatay, Kahramanmaraş, Adıyaman, Malatya and Gaziantep hardest), and the Aegean coast around İzmir (active fault network; a magnitude-7.0 earthquake struck offshore in 2020). Comparatively lower relative risk: Ankara, and much of the central and eastern Mediterranean coast around Antalya, Alanya, and parts of Muğla. No region of Turkey is earthquake-free — even "lower risk" coastal areas experience meaningful seismic activity — so this is a matter of relative exposure, not safety versus danger.

Yes, technically. Turkey's old Earthquake Zones Map, in place since 1996, classified the country into five numbered "deprem bölgesi" zones. AFAD replaced this system on 18 March 2018 (in force from 1 January 2019) with a new Türkiye Deprem Tehlike Haritası (Turkey Earthquake Hazard Map), which expresses hazard as peak ground acceleration (PGA) values rather than a simple zone number. In everyday conversation, on real-estate listings, and in some insurance tariffs, people (and this page) still use relative terms like "high," "moderate," and "low" risk for convenience, but if you see an official document referencing "Deprem Bölgesi 1" it may be using the pre-2019 terminology. For a technically precise reading of any specific parcel's hazard level, check the interactive map at deprem.afad.gov.tr.

Yes, to a useful degree. AFAD's interactive seismic hazard map (deprem.afad.gov.tr) shows peak ground acceleration values by location. e-Devlet (Turkey's e-government portal) and the Ministry of Environment, Urbanisation and Climate Change's "Riskli Yapı Sorgulama" service allow a search for existing riskli bina designations tied to a specific parcel (ada/parsel) number — your lawyer can run this search as part of due diligence, and it is a standard step that should be included in any property due diligence in Turkey before you sign a sales contract.

Yes. Güçlendirme (seismic strengthening/retrofitting) — adding shear walls, steel bracing, jacketing columns with additional concrete and rebar, or underpinning foundations — is a recognised alternative to demolition for buildings that are structurally deficient but not beyond repair. It is typically decided building-by-building based on an engineer's assessment and is more common for well-located older buildings where the owners want to avoid the disruption of full demolition and rebuild. If you are considering a pre-1999 building, ask whether any güçlendirme work has been carried out and request the engineering report and permits for that work, not just a verbal assurance.

The February 2023 Kahramanmaraş earthquakes struck a region — Hatay, Kahramanmaraş, Adıyaman, Malatya, Gaziantep and neighbouring provinces — that had relatively limited foreign residential property ownership compared with Turkey's major foreign-buyer hubs (Istanbul, Antalya, Alanya, Bodrum, Fethiye, Mersin). Foreign buyers with property in the affected provinces were, however, subject to the same building-collapse risk as Turkish owners, which is the central reason this page exists: seismic risk is a real financial and safety variable to factor into where and what you buy, not a remote or theoretical one.

Not necessarily — Istanbul remains Turkey's largest economy, job market, and international-school and hospital hub, and many buyers reasonably choose it despite the seismic risk. The more useful approach is risk-adjusted buying: prioritise post-2019 (TBDY 2018) construction or a professionally verified güçlendirme retrofit, obtain an independent structural opinion for anything built before 2007, confirm DASK coverage and check for any riskli bina designation, and factor the seismic risk explicitly into your price negotiation and budget rather than ignoring it. Buyers who want to minimise seismic exposure while still living in Turkey often compare Istanbul against lower-relative-risk options like Antalya or the Mediterranean coast.

DASK has a track record of processing large volumes of claims after major events, including the 2023 Kahramanmaraş earthquakes, though — as with any large-scale disaster claims process — payout speed for an individual claim depends on the scale of the event, how quickly damage assessment teams can reach the property, and whether the policy and premium payments were current and the declared m² accurate. This is exactly why keeping your DASK policy active and your declared building details accurate matters: an expired or misdeclared policy can complicate or delay a claim.