The state property register’s identifier for real premises.
The cadastre number is the state property register’s identifier for premises that exist in law. Company registration asks for it because an address without a cadastre record is only an assertion; with one, the premises are verifiable by the registry and, later, by the bank. It is the reason virtual offices fail and real addresses pass.
Real, cadastre-registered premises the registry accepts and the bank verifies.
Part of the answer bank — 52 questions, each cited to the article it rests on.