Due Diligence Checklist for the International Buyer
The critical steps of technical, legal, and urban validation before presenting a formal offer for a high-wealth property in Spain.
- Legal Department
- May 6, 2026
- 7 min
Key takeaways
- Commercial information from a web portal has no legal value; only the 'Nota Simple' and cadastral certification matter.
- For detached villas, auditing urban infraction files is critical.
- Obtaining the NIE (Foreigner Identity Number) must be step zero of any purchasing project.
1. The Pre-Contractual Framework
In Cross-Border transactions, commercial agility often clashes with local bureaucracy. Before falling in love with an asset and issuing a reservation, the international buyer must have their execution capacity structured. This implies having an active NIE, holding operational bank accounts on Spanish soil (with funds justified by KYC/AML), and having defined the tax structure (personal purchase vs. wealth holding company).
2. Registry Validation (Nota Simple)
The foundational document of any Due Diligence. The following must be verified:
- True ownership (Who exactly owns the property?).
- Charges and encumbrances (Active mortgages, embargoes, or rights of way).
- Coherence of square meters: It is very common in older properties that the square meters registered in the Nota Simple do not match the physical reality (Cadastre). This must be rectified before the final deed.
3. Municipal Urban Reality
Especially relevant for independent properties (villas, estates) in areas like Jávea, Altea, or Moraira. A property may be inscribed in the registry but have open urban infraction files for undeclared expansions (e.g., enclosed terraces or unlicensed pools). We always demand non-infraction certificates from the corresponding town hall.
4. Technical and Structural Condition
Luxury assumes no hidden defects. Beyond visual inspection, an expert technical report (conducted by registered architects) ensures that vital systems like plumbing, electrical installations, foundations, and insulation comply with current regulations and will not present unforeseen capex (capital expenditures) in the first 36 months.