Evidence & provenance
Property data is useful only when its boundary is visible.
OwnaSea uses official law, tax, registry and statistical sources across eight markets. Every legal, ownership, tax, residency, inheritance, mortgage or rental-rule claim must be checked against a relevant primary source before publication. Secondary media and social discussions are discovery signals, not legal evidence.
Our principal property-market sources
Official statistics and property registries form the base layer. Central banks provide mortgage, credit and financial-stability context. Audited property intelligence may add project-level detail when its provenance, definitions and observation date stay visible.
Source directory
Every source, one clear link.
35 registered sources across Europe and the Black Sea markets we cover.
Bank for International Settlements
Cross-country credit and property-finance indicators.
Open source page ↗National Statistics Office of Georgia (Geostat)
Georgia prices, construction and population
Open source page ↗National Agency of Public Registry
Public property-register and land-record context.
Open source page ↗Georgian National Tourism Administration
Tourism demand and visitor-flow indicators.
Open source page ↗HomeRadar
Project, building and listing intelligence for Georgia’s residential market
Open source page ↗RealEstateBatumi.blog
Local Batumi project and listing observations for current market context.
Open source page ↗Agency for Geodesy, Cartography and Cadastre
Official geodetic and cadastral records.
Open source page ↗National Agency for Cadastre and Land Registration
Property-register and cadastral records.
Open source page ↗Statistical Service of Cyprus
Official housing, construction and population statistics.
Open source page ↗Department of Lands and Surveys Cyprus
Land-registry transactions and district records.
Open source page ↗Institute of Statistics Albania
Official housing, construction and demographic statistics.
Open source page ↗General Directorate of Land Registry and Cadastre Turkey
Land registration and foreign-buyer procedures.
Open source page ↗EstateBriefing
Signals and context only; legal and regulatory claims require independent primary-source verification.
Open source page ↗
What we do not combine silently
Asking prices ≠ transactions. Advertisement data can describe seller expectations; it does not prove the achieved sale price.
Projects ≠ listings. One development may have several towers, phases, spellings and broker pages.
Indices ≠ euro prices. An index measures change within a defined sample and base period.
Sources ≠ partners. Citing a public dataset does not imply a commercial relationship.