[{"data":1,"prerenderedAt":324},["ShallowReactive",2],{"page:\u002Fen\u002Fblog\u002Fhow-to-check-if-an-istanbul-apartment-is-earthquake-safe\u002F":3,"nav:en":253},{"kind":4,"locale":5,"path":6,"alternates":7,"seo":11,"breadcrumbs":17,"jsonld":26,"data":169,"dims":249},"blog","en","\u002Fen\u002Fblog\u002Fhow-to-check-if-an-istanbul-apartment-is-earthquake-safe\u002F",{"tr":8,"en":6,"ar":9,"ru":10},"\u002Fblog\u002Fistanbulda-depreme-dayanikli-daire-nasil-anlasilir\u002F","\u002Far\u002Fblog\u002Fhow-to-check-if-an-istanbul-apartment-is-earthquake-safe\u002F","\u002Fru\u002Fblog\u002Fkak-proverit-seysmostoykost-kvartiry-v-stambule\u002F",{"title":12,"description":13,"image":14,"canonical":6,"type":15,"published":16,"modified":16},"Is an Istanbul Apartment Earthquake-Safe? 8 Checks (2026)","How to check whether an Istanbul apartment is earthquake-resistant before buying: permit year and seismic codes, occupancy permit, building inspection, risky…","\u002Fimages\u002Fuploads\u002F2025\u002F04\u002Fcet-insaya-konaklari-img-01.jpg","article","2026-10-01",[18,21,24],{"text":19,"href":20},"Home","\u002Fen\u002F",{"text":22,"href":23},"Blog","\u002Fen\u002Fblog\u002F",{"text":25},"Are Istanbul Buildings Earthquake-Proof? 8 Checks Before You Buy an Apartment (2026)",[27,40,62,87],{"@type":28,"itemListElement":29},"BreadcrumbList",[30,34,37],{"@type":31,"position":32,"name":19,"item":33},"ListItem",1,"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002F",{"@type":31,"position":35,"name":22,"item":36},2,"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fblog\u002F",{"@type":31,"position":38,"name":25,"item":39},3,"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fblog\u002Fhow-to-check-if-an-istanbul-apartment-is-earthquake-safe\u002F",{"@type":41,"@id":42,"headline":25,"description":43,"datePublished":16,"dateModified":16,"inLanguage":5,"image":44,"author":45,"publisher":51,"mainEntityOfPage":39,"keywords":52,"articleSection":53,"wordCount":54,"mentions":55},"BlogPosting","https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fblog\u002Fhow-to-check-if-an-istanbul-apartment-is-earthquake-safe\u002F#article","How to check whether an Istanbul apartment is earthquake-resistant before buying: permit year and seismic codes, occupancy permit, building inspection, risky building search, soil and survey.","https:\u002F\u002Fwww.cetyapi.com.tr\u002Fimages\u002Fuploads\u002F2025\u002F04\u002Fcet-insaya-konaklari-img-01.jpg",{"@type":46,"name":47,"url":48,"parentOrganization":49},"Organization","ÇET Yapı Editorial Team","https:\u002F\u002Fwww.cetyapi.com.tr\u002F",{"@id":50},"https:\u002F\u002Fwww.cetyapi.com.tr\u002F#organization",{"@id":50},"are Istanbul buildings earthquake proof, earthquake safe apartment Istanbul, check building earthquake resistance Turkey, buy apartment Istanbul earthquake, Istanbul building permit year seismic code","Urban Transformation",478,[56,58,60],{"@id":57},"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fprojects\u002Fcet-merter-insaya-residences\u002F#project",{"@id":59},"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fprojects\u002Fcet-bahcelievler-insaya-konaklari\u002F#project",{"@id":61},"https:\u002F\u002Fwww.cetyapi.com.tr\u002Fen\u002Fprojects\u002Fyesilkoy-ates-sitesi\u002F#project",{"@type":63,"mainEntity":64},"FAQPage",[65,71,75,79,83],{"@type":66,"name":67,"acceptedAnswer":68},"Question","Are Istanbul buildings earthquake-proof?",{"@type":69,"text":70},"Answer","No city's building stock is uniformly earthquake-proof. Istanbul has many modern buildings designed to recent codes, but also older buildings built before modern codes and inspection. Each building must be assessed individually.",{"@type":66,"name":72,"acceptedAnswer":73},"How can I tell if a building is earthquake-resistant?",{"@type":69,"text":74},"A definitive answer requires an engineering assessment based on concrete cores, reinforcement and soil. Before buying, the permit year, occupancy permit, inspection record, risky building search, soil data and a visual check provide a first screening.",{"@type":66,"name":76,"acceptedAnswer":77},"Are buildings after a certain year safer?",{"@type":69,"text":78},"Year alone is no guarantee, but in Istanbul building inspection has been mandatory since 2001 and the 2007 and 2018 codes introduced stricter rules. TBDY 2018 has applied since 1 January 2019.",{"@type":66,"name":80,"acceptedAnswer":81},"Should I buy in a building without an occupancy permit?",{"@type":69,"text":82},"Buildings without iskân may have unauthorised floors or deviations from the approved design. Structural and legal risks should be examined more carefully.",{"@type":66,"name":84,"acceptedAnswer":85},"Does earthquake insurance mean the building is safe?",{"@type":69,"text":86},"No. Compulsory earthquake insurance (DASK) only provides limited cover for earthquake damage; it says nothing about the building's resistance.",{"@type":88,"@id":50,"name":90,"alternateName":91,"legalName":95,"identifier":96,"hasCredential":104,"url":48,"logo":111,"image":113,"description":114,"foundingDate":115,"founder":116,"email":119,"telephone":120,"address":121,"openingHoursSpecification":127,"areaServed":137,"knowsAbout":158,"sameAs":166},[46,89],"GeneralContractor","ÇET Yapı Turizm A.Ş.",[92,93,94],"ÇET Yapı","Çet Yapı","CET Yapi","ÇET YAPI TURİZM ANONİM ŞİRKETİ",[97,101],{"@type":98,"propertyID":99,"value":100},"PropertyValue","MERSİS","0242051074500011",{"@type":98,"propertyID":102,"value":103},"İstanbul Ticaret Sicil No","818550-0",{"@type":105,"credentialCategory":106,"name":107,"recognizedBy":108},"EducationalOccupationalCredential","license","Yapı Müteahhitliği Yetki Belgesi – E grubu (No 0034211566204056)",{"@type":109,"name":110},"GovernmentOrganization","T.C. Çevre, Şehircilik ve İklim Değişikliği Bakanlığı",{"@type":112,"url":113},"ImageObject","https:\u002F\u002Fwww.cetyapi.com.tr\u002Fimages\u002Ftheme\u002Fcet-yapi-logo.png","Founded in Istanbul in 1993, ÇET Yapı is a Turkish contractor delivering turnkey school campuses, housing, urban transformation, design and restoration.","1993",{"@type":117,"name":118},"Person","Doç. Dr. Ahmet Çetinsaya","info@cetyapi.com.tr","+902126623000",{"@type":122,"streetAddress":123,"addressLocality":124,"addressRegion":125,"addressCountry":126},"PostalAddress","Çobançeşme Mah. Sanayi Cad. No:44 Nish İstanbul Residence D Blok D:186 Yenibosna","Bahçelievler","İstanbul","TR",{"@type":128,"dayOfWeek":129,"opens":135,"closes":136},"OpeningHoursSpecification",[130,131,132,133,134],"Monday","Tuesday","Wednesday","Thursday","Friday","09:00","18:00",[138,141,143,146,148,150,152,154,156],{"@type":139,"name":140},"Country","Türkiye",{"@type":142,"name":125},"City",{"@type":144,"name":145},"AdministrativeArea","Beşiktaş, İstanbul",{"@type":144,"name":147},"Kadıköy, İstanbul",{"@type":144,"name":149},"Sarıyer, İstanbul",{"@type":144,"name":151},"Bakırköy, İstanbul",{"@type":144,"name":153},"Üsküdar, İstanbul",{"@type":144,"name":155},"Şişli, İstanbul",{"@type":144,"name":157},"Bahçelievler ve Güngören, İstanbul",[159,160,161,162,163,164,165],"School construction","Educational campus construction","Urban transformation","Real estate development","Architectural design","Historic building restoration","Turnkey construction",[167,168],"https:\u002F\u002Fwww.instagram.com\u002Fcet_yapi\u002F","https:\u002F\u002Fx.com\u002FCetYapi",{"title":25,"html":170,"toc":171,"tldr":201,"faq":206,"sources":212,"image":14,"imageAlt":222,"published":223,"publishedIso":16,"modified":224,"modifiedIso":16,"reading":225,"related":226,"more":236,"urbanCta":224},"\u003Cp>When buying or renting in Istanbul, the key question is \u003Cstrong>how earthquake-resistant the building is\u003C\u002Fstrong>. A definitive answer only comes from an engineering survey, but the documents and checks below let you screen out risky buildings before you commit.\u003C\u002Fp>\n\u003Ch2 id=\"1-building-permit-date-and-seismic-code\">1. Building permit date and seismic code\u003C\u002Fh2>\n\u003Cp>The \u003Cstrong>permit date\u003C\u002Fstrong> shows which seismic code the design followed:\u003C\u002Fp>\n\u003Cdiv class=\"table-responsive\">\u003Ctable class=\"table table-striped table-hover\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>Period\u003C\u002Fth>\n\u003Cth>Code\u003C\u002Fth>\n\u003Cth>Note\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\u003Ctr>\n\u003Ctd>Before 1998\u003C\u002Ftd>\n\u003Ctd>1975 code and earlier\u003C\u002Ftd>\n\u003Ctd>Needs the most careful review\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>1998–2007\u003C\u002Ftd>\n\u003Ctd>1998 Disaster Areas Regulation\u003C\u002Ftd>\n\u003Ctd>Stronger ductility rules\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>2007–2018\u003C\u002Ftd>\n\u003Ctd>2007 Earthquake Regions Regulation\u003C\u002Ftd>\n\u003Ctd>Added assessment of existing buildings\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>2019 onwards\u003C\u002Ftd>\n\u003Ctd>Turkish Building Earthquake Code (TBDY 2018)\u003C\u002Ftd>\n\u003Ctd>In force since 1 January 2019\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cp>Ask the seller for a copy of the permit or check the municipality's zoning archive.\u003C\u002Fp>\n\u003Ch2 id=\"2-building-inspection-record\">2. Building inspection record\u003C\u002Fh2>\n\u003Cp>The \u003Cstrong>Building Inspection Law No. 4708\u003C\u002Fstrong>, adopted on 29 June 2001, applied first in \u003Cstrong>19 provinces including Istanbul\u003C\u002Fstrong> and nationwide from \u003Cstrong>1 January 2011\u003C\u002Fstrong>. Istanbul buildings permitted after 2001 should have a registered \u003Cstrong>building inspection firm\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Ch2 id=\"3-occupancy-permit-iskan\">3. Occupancy permit (iskân)\u003C\u002Fh2>\n\u003Cp>The occupancy permit shows the building was completed according to its permit. A title deed showing \u003Cstrong>condominium ownership\u003C\u002Fstrong> (\u003Cem>kat mülkiyeti\u003C\u002Fem>) usually indicates an occupancy permit, whereas \u003Cstrong>construction servitude\u003C\u002Fstrong> (\u003Cem>kat irtifakı\u003C\u002Fem>) may mean it has not been obtained. Without iskân, the risk of \u003Cstrong>unauthorised floors or alterations\u003C\u002Fstrong> is higher.\u003C\u002Fp>\n\u003Ch2 id=\"4-risky-building-search\">4. Risky building search\u003C\u002Fh2>\n\u003Cp>Check on \u003Cstrong>e-Government\u003C\u002Fstrong> (Ministry of Environment, Urbanisation and Climate Change services) whether the building has been declared risky, and review the declarations section of the title deed. Buying a flat in a risky building means joining an \u003Ca href=\"\u002Fen\u002Fblog\u002Furban-transformation-process-step-by-step-turkey\u002F\">urban transformation process\u003C\u002Fa>.\u003C\u002Fp>\n\u003Ch2 id=\"5-soil-and-seismic-hazard\">5. Soil and seismic hazard\u003C\u002Fh2>\n\u003Cp>The \u003Cstrong>AFAD Turkey Earthquake Hazard Map\u003C\u002Fstrong> shows hazard parameters for an address. Soil reports matter especially for fill ground, former stream beds and the coastline.\u003C\u002Fp>\n\u003Ch2 id=\"6-visual-check\">6. Visual check\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Cstrong>Cracks, spalling or rust stains\u003C\u002Fstrong> on columns and beams,\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Cut or slimmed columns\u003C\u002Fstrong> to open ground-floor shops,\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Added roof or extra floors\u003C\u002Fstrong>,\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Damp or water\u003C\u002Fstrong> in the basement.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>Any of these calls for an engineer.\u003C\u002Fp>\n\u003Ch2 id=\"7-independent-engineering-assessment\">7. Independent engineering assessment\u003C\u002Fh2>\n\u003Cp>The most reliable method is a survey with \u003Cstrong>concrete cores\u003C\u002Fstrong> and reinforcement scanning, evaluated under Chapter 15 of TBDY 2018. The legal \u003Ca href=\"\u002Fen\u002Fblog\u002Frisky-building-assessment-in-turkey\u002F\">risky building assessment\u003C\u002Fa> is ordered by owners from licensed institutions.\u003C\u002Fp>\n\u003Ch2 id=\"8-compulsory-earthquake-insurance-dask\">8. Compulsory earthquake insurance (DASK)\u003C\u002Fh2>\n\u003Cp>Check the flat's \u003Cstrong>DASK\u003C\u002Fstrong> policy. It provides limited earthquake cover but \u003Cstrong>does not certify\u003C\u002Fstrong> the building's safety.\u003C\u002Fp>\n\u003Ch2 id=\"bottom-line\">Bottom line\u003C\u002Fh2>\n\u003Cp>A new building and complete paperwork reduce risk, but \u003Cstrong>no document alone is a guarantee\u003C\u002Fstrong>. If you are considering an older building, look into \u003Ca href=\"\u002Fen\u002Fblog\u002Fseismic-retrofit-or-rebuild-turkey\u002F\">retrofit or rebuild\u003C\u002Fa> options and Istanbul's \u003Ca href=\"\u002Fen\u002Fblog\u002Fyarisi-bizden-half-from-us-campaign-istanbul\u002F\">Yarısı Bizden\u003C\u002Fa> support. Foreign buyers may also find our guide to \u003Ca href=\"\u002Fen\u002Fblog\u002Fturkish-citizenship-by-real-estate-investment-2026\u002F\">citizenship by real estate investment\u003C\u002Fa> useful.\u003C\u002Fp>\n\u003Ch2 id=\"cet-yapi\">ÇET Yapı\u003C\u002Fh2>\n\u003Cp>ÇET Yapı has built residential, school and urban transformation projects in Istanbul since 1993. To discuss renewing your building, fill in our \u003Ca href=\"\u002Fen\u002Furban-transformation\u002F#on-basvuru\">pre-application form\u003C\u002Fa>.\u003C\u002Fp>\n\u003Cp>\u003Cem>This article is general information; get engineering and legal advice before buying.\u003C\u002Fem>\u003C\u002Fp>\n",[172,175,178,181,184,187,190,193,196,199],{"id":173,"text":174},"1-building-permit-date-and-seismic-code","1. Building permit date and seismic code",{"id":176,"text":177},"2-building-inspection-record","2. Building inspection record",{"id":179,"text":180},"3-occupancy-permit-iskan","3. Occupancy permit (iskân)",{"id":182,"text":183},"4-risky-building-search","4. Risky building search",{"id":185,"text":186},"5-soil-and-seismic-hazard","5. Soil and seismic hazard",{"id":188,"text":189},"6-visual-check","6. Visual check",{"id":191,"text":192},"7-independent-engineering-assessment","7. Independent engineering assessment",{"id":194,"text":195},"8-compulsory-earthquake-insurance-dask","8. Compulsory earthquake insurance (DASK)",{"id":197,"text":198},"bottom-line","Bottom line",{"id":200,"text":92},"cet-yapi",[202,203,204,205],"The building permit date shows which seismic code the building was designed to: 1998, 2007 and the TBDY 2018 code (in force since 1 January 2019) are the key thresholds.","Istanbul was among the first 19 provinces where the Building Inspection Law No. 4708 applied from 2001; buildings permitted after 2001 have a registered inspection firm.","The occupancy permit (iskân) shows the building was completed per its permit; risky building status can be checked on e-Government.","No document alone guarantees safety; a definitive answer requires soil data and an engineering survey with concrete cores.",[207,208,209,210,211],{"q":67,"a":70},{"q":72,"a":74},{"q":76,"a":78},{"q":80,"a":82},{"q":84,"a":86},[213,216,219],{"title":214,"url":215},"Turkish Building Earthquake Code (TBDY 2018)","https:\u002F\u002Fwww.resmigazete.gov.tr\u002Feskiler\u002F2018\u002F03\u002F20180318M1-2.htm",{"title":217,"url":218},"Building Inspection Law No. 4708","https:\u002F\u002Fwww.mevzuat.gov.tr\u002Fmevzuatmetin\u002F1.5.4708.pdf",{"title":220,"url":221},"AFAD – Turkey Earthquake Hazard Map","https:\u002F\u002Ftdth.afad.gov.tr\u002F","Merter İnsaya Konakları new residential project by ÇET Yapı","1 October 2026",null,"3 min read",[227,230,233],{"href":228,"title":229},"\u002Fen\u002Fprojects\u002Fcet-merter-insaya-residences\u002F","Çet Merter İnsaya Residences",{"href":231,"title":232},"\u002Fen\u002Fprojects\u002Fcet-bahcelievler-insaya-konaklari\u002F","Çet Bahçelievler İnsaya Residences",{"href":234,"title":235},"\u002Fen\u002Fprojects\u002Fyesilkoy-ates-sitesi\u002F","Yeşilköy Ateş Residence",[237,240,243,246],{"href":238,"title":239},"\u002Fen\u002Fblog\u002Furban-transformation-in-bakirkoy-yesilkoy-florya-atakoy\u002F","Urban Transformation in Bakırköy: Yeşilköy, Florya, Ataköy and Kartaltepe (2026 Guide)",{"href":241,"title":242},"\u002Fen\u002Fblog\u002Fwill-my-flat-shrink-in-urban-transformation-turkey\u002F","Will My Flat Get Smaller in Urban Transformation? Land Share, Floor Area Ratio and m² (2026)",{"href":244,"title":245},"\u002Fen\u002Fblog\u002Finherited-shared-and-mortgaged-flats-in-urban-transformation-turkey\u002F","Inherited, Co-Owned and Mortgaged Flats in Urban Transformation: How Does It Work? (2026)",{"href":247,"title":248},"\u002Fen\u002Fblog\u002Furban-transformation-in-besiktas-etiler-levent-ulus\u002F","Urban Transformation in Beşiktaş: Etiler, Levent, Ulus and the Bosphorus Area (2026 Guide)",{"\u002Fimages\u002Fuploads\u002F2025\u002F04\u002Fcet-insaya-konaklari-img-01.jpg":250},[251,252],800,533,{"home":20,"corporate":254,"projectTypes":273,"allProjects":286,"news":287,"blog":23,"contact":288,"urban":291,"legal":293,"legalPages":309,"languages":310},[255,258,261,264,267,270],{"href":256,"title":257},"\u002Fen\u002Fabout-us\u002F","About Us",{"href":259,"title":260},"\u002Fen\u002Fchairmans-message\u002F","Chairman's Message",{"href":262,"title":263},"\u002Fen\u002Four-mission-and-vision\u002F","Our Mission and Vision",{"href":265,"title":266},"\u002Fen\u002Fhistory\u002F","History",{"href":268,"title":269},"\u002Fen\u002Fquality-policy\u002F","Our Quality Policy",{"href":271,"title":272},"\u002Fen\u002Fhuman-resources\u002F","Human Resources",[274,277,280,283],{"href":275,"title":276},"\u002Fen\u002Fproject-type\u002Fcontracting-services\u002F","Contracting Services",{"href":278,"title":279},"\u002Fen\u002Fproject-type\u002Freal-estate-development\u002F","Real Estate Development",{"href":281,"title":282},"\u002Fen\u002Fproject-type\u002Farchitectural-project\u002F","Architectural Project",{"href":284,"title":285},"\u002Fen\u002Fproject-type\u002Frenovation-restoration\u002F","Renovation Restoration","\u002Fen\u002Fprojects\u002F","\u002Fen\u002Fcategory\u002Fnews\u002F",{"href":289,"title":290},"\u002Fen\u002Fcontact-us\u002F","Contact Us",{"href":292,"title":53},"\u002Fen\u002Furban-transformation\u002F",[294,297,300,303,306],{"href":295,"title":296},"\u002Fen\u002Fcookie-policy\u002F","Cookie Policy",{"href":298,"title":299},"\u002Fen\u002Furban-transformation-pre-application-privacy-notice\u002F","Urban Transformation Pre-Application Form Privacy Notice",{"href":301,"title":302},"\u002Fen\u002Fcommercial-electronic-message-consent\u002F","Commercial Electronic Message Consent",{"href":304,"title":305},"\u002Fen\u002Fpersonal-data-retention-and-destruction-policy\u002F","Personal Data Retention and Destruction Policy",{"href":307,"title":308},"\u002Fen\u002Fprivacy-and-security-policy\u002F","Privacy and Security Policy",{"cerez-politikasi":295,"kentsel-donusum-aydinlatma-metni":298,"ticari-elektronik-ileti-onayi":301,"kisisel-veri-saklama-ve-imha-politikasi":304,"gizlilik-ve-guvenlik-politikasi":307},[311,314,316,320],{"code":312,"label":126,"home":313},"tr","\u002F",{"code":5,"label":315,"home":20},"EN",{"code":317,"label":318,"home":319},"ar","AR","\u002Far\u002F",{"code":321,"label":322,"home":323},"ru","RU","\u002Fru\u002F",1793451806813]