Escritura pública
Notarial deed. On a purchase this is the escritura de compraventa. You become owner on signing and delivery; registration protects you against third parties.
Lexicon
Full German commentary lives in the Rechtslexikon. English overview:
Notarial deed. On a purchase this is the escritura de compraventa. You become owner on signing and delivery; registration protects you against third parties.
Foreigner identification number. Required for notary, land registry, tax office and usually a bank account.
Land-registry extract: owner, description, mortgages and other charges. Check a current one before any deposit.
Transfer tax on second-hand homes versus VAT on many new builds and plots. Rates depend on the Autonomous Community.
Municipal tax on the increase in land value on sale, gift or inheritance.
Non-resident income tax, including deemed use of a holiday home and, later, capital gains.