Earthquake insurance (DASK) is mandatory for all residential properties in Turkey, with premiums based on location, construction type, and building age. High-risk zones like Istanbul typically cost €100-€300 annually for standard coverage (up to €150,000). Policies exclude luxury finishes and require separate coverage for furnishings. New constructions with seismic certifications may qualify for discounts. Note that commercial properties have different requirements. For detailed explanations of coverage options, risk zone maps, and claim procedures, Turk.Estate offers impartial insurance guides to help buyers understand this essential protection.