Property due diligence in Spain: what buyers and sellers check before closing in 2026

Spain CRE deals have a tax structure most non-Spanish buyers get wrong the first time: transfer tax is either 6-10% ITP or 21% IVA depending on whether the seller is a developer and whether you waive the VAT exemption. Which one applies moves the deal math significantly since IVA is recoverable for VAT-registered buyers and ITP is not.

Spain's commercial property transfers require a notario público (public notary). Title only transfers on the date the escritura (notarial deed) is signed and the property is inscribed in the Registro de la Propiedad.

The nota simple is the basic land registry extract from the Registro de la Propiedad. It shows the owner, surface area, permitted use, mortgages, liens, and encumbrances. Pull it on day one.

Spain's 17 autonomous communities each have their own ITP rate and environmental regulations. A Madrid deal and a Barcelona deal have different tax costs, different planning authorities, and different environmental registries.

Set up an Ellty data room before diligence opens. Load all nota simple documents, planning certificates, Catastro extracts, and lease files so each advisor gets a scoped link from day one.

Where Spanish deals actually go wrong

Not every check carries the same weight. The table below sorts risks by deal impact - dealbreakers first, then what moves the price, then basic hygiene - so your abogado, notario, and technical advisor know what to clear first.

Spain CRE checklist

The table ranked risks by severity. This is the full list to work through, grouped by area.

Title and Registro de la Propiedad

• Pull the nota simple from the Registro de la Propiedad immediately on day one; it costs under EUR 10
• Pull the certificación registral (full certified extract) for a legally binding version of the property record
• Check the nota simple for: hipotecas (mortgages), embargos (court attachments), servidumbres (easements), derechos de adquisición (pre-emptive rights)
• Confirm the Catastro referencia catastral matches the Registro and reconcile any discrepancies between registral and cadastral surface areas
• Run the full chain of title through the escritura (notarial deed) history to identify any gaps or undisclosed encumbrances
• For strata/propiedad horizontal: pull the estatutos de la comunidad and last 3 years of community meeting minutes

Urban planning - urbanismo

• Pull the informe urbanístico from the local municipality (Ayuntamiento) immediately after contract
• Confirm the land classification: suelo urbano (developed), suelo urbanizable (developable), or suelo no urbanizable (rural; can't be developed)
• Check the Plan General de Ordenación Urbana (PGOU) or equivalent for the permitted commercial uses on the parcel
• Confirm all licencias de obras (building permits) and licencias de actividad (activity licenses) are current and on file
• For development sites: confirm the sistema de actuación (development mechanism) and any cuotas de urbanización (development charges) outstanding

First occupancy license

• Confirm the licencia de primera ocupación (first occupancy license) from the municipality is valid and on file
• Many Spanish commercial buildings lack this license; without it, the building cannot legally be occupied
• For licencias de actividad (activity/use licenses): confirm they cover all current commercial uses in the building
• Pull the certificado de fin de obra (construction completion certificate) from the architect and confirm it was filed
• For buildings with regularized works (obras sin licencia): confirm the prescription period has passed and municipal regularization is confirmed

Environmental - suelo contaminado

• Commission a Phase I ESA per Real Decreto 9/2005 standards
• Search the autonomous community's contaminated soil register; Catalonia has the COSI register, Basque Country has similar
• Pull the informe de situación del suelo from the regional environmental authority for the parcel
• For industrial, logistics, and port-adjacent sites in Catalonia, Basque Country, Madrid, and Valencia: order Phase II investigation immediately
• Budget Phase II soil investigation (EUR 10,000-40,000) if Phase I identifies hazardous activities under RD 9/2005 categories

Leases and tenancies

• Collect all arrendamientos (leases) and confirm they comply with LAU (Ley de Arrendamientos Urbanos) and specific commercial provisions
• Check for any verbal or informal occupancies, particularly in older commercial buildings in Madrid and Barcelona city centers
• Confirm rent review mechanism; Spanish commercial leases use IPC (CPI) escalation as the most common mechanism
• Cross-reference the rent roll against 12 months of actual receipts and any IVA invoicing records
• Confirm fianzas (security deposits) are current; commercial tenants in Spain typically provide 2 months deposit

Issue NDA-tracked links in Ellty when sharing lease files with multiple advisors. Each party gets a watermarked, scoped link; you see who opened what file and when.

IBI and local tax arrears

• Request IBI (Impuesto sobre Bienes Inmuebles) receipts for the last 4 years from the seller
• Confirm the local tax authority (Ayuntamiento or tax collection agency) has no outstanding IBI arrears
• Confirm the plusvalía municipal (Impuesto sobre el Incremento de Valor de los Terrenos) has been calculated and the seller is responsible for payment at closing
• Post-2021 Constitutional Court ruling: plusvalía only applies if there's a real increase in land value; seller must provide the calculation
• Check for any outstanding cuotas de urbanización (development charges) or contribuciones especiales (special levy contributions) against the parcel

ITP vs IVA structure

• Determine whether the sale is subject to IVA (21% VAT) or ITP (6-10% regional transfer tax)
• IVA applies when the seller is an empresario (business) selling as part of their business activity and the property is new or the seller waives the IVA exemption
• ITP applies when the seller is a private individual or when the IVA exemption is not waived
• For IVA-subject sales: confirm the buyer is also IVA registered; a registered buyer can deduct the input IVA and the economic cost is zero
• Add IAJD (stamp duty on the notarial deed) to the IVA cost: rates vary 0.5-1.5% by autonomous community
• For Catalonia: ITP rate is 10%; for Madrid: 6%; this difference alone is EUR 400,000 on a EUR 10M deal

Building and structural condition

• Commission a Property Condition Assessment; check structural condition, roof, mechanical systems
• For buildings older than 50 years: confirm the ITE (Inspección Técnica de Edificios) has been completed and passed
• Pull the full building permit history from the Ayuntamiento; confirm no obras sin licencia (unpermitted works) are outstanding
• For pre-1980 buildings: commission an asbestos survey; asbestos is prevalent in Spanish commercial construction of this era
• Confirm fire safety compliance certificate from the local bomberos (fire service) is current

Insurance and valuation

• Pull current insurance policies and 3-year loss run from the seller
• Check SNCZI (National Flood Mapping System) for the property; Valencia, Murcia, Almería, and Ebro valley areas carry significant commercial flood risk
• For Granada, Almería, and Murcia: check earthquake risk zone (Spain has seismic activity in the south); confirm earthquake coverage
• Order a tasación (independent appraisal) from a TINSA or other certified Spanish valuation firm for lender requirements

Seller KYC and AML

• Pull a BORME (Boletín Oficial del Registro Mercantil) extract confirming the selling entity is registered and in good standing
• Confirm all UBOs are identified; Spanish AML regulations require notarios and abogados to perform KYC
• Confirm the seller has a valid NIF (Spanish tax ID); foreign sellers need an NIE (foreign identification number)
• Spanish notarios independently perform AML client due diligence before the escritura is signed

How due diligence in Spain works

Step 1 - Nota simple and ITP/IVA analysis

Pull the nota simple from the Registro de la Propiedad and run the ITP vs IVA tax structure analysis in the first 48 hours. The tax structure determines whether the buyer pays 6-21% non-recoverable or 21% recoverable; getting it wrong is the most expensive mistake in Spanish CRE.

For non-Spanish buyers: confirm you have a Spanish NIF or NIE before trying to sign the escritura. No NIF/NIE means no closing.

Step 2 - Urbanismo and first occupancy license

Request the informe urbanístico from the Ayuntamiento and confirm the licencia de primera ocupación simultaneously. Both typically take 2-4 weeks to obtain from the municipality.

Check the PGOU land use classification carefully. Spanish suelo no urbanizable (non-developable rural land) cannot be converted to commercial use without a complex regional plan amendment - a common trap for buyers who discover the parcel can't be developed as planned.

Step 3 - IBI and encumbrances

Confirm IBI receipts are current before signing the contrato de arras (deposit agreement). IBI arrears create a tax lien that follows the property after transfer; they don't stay with the seller.

Pull the plusvalía municipal certificate from the Ayuntamiento. Post the 2021 Constitutional Court decision that struck down the automatic calculation method, sellers now calculate plusvalía only when the land value actually increased. Get this confirmed and documented before the escritura.

Step 4 - Environmental review

Commission the Phase I ESA per Real Decreto 9/2005 standards. For industrial sites in Catalonia (Tarragona petrochemical corridor, Badalona, Cornellà), Basque Country (Bilbao estuary), or Madrid outskirts (Vallecas, Alcobendas), order Phase II in parallel.

Compare Germany's environmental diligence process if you run EU portfolios. Both countries have significant industrial contamination in specific regions, but Germany uses a federal contaminated sites regime while Spain's enforcement is autonomous-community-level.

Step 5 - Escritura and Registro inscription

Spanish commercial closings close at the notario's office. Both buyer and seller must be present or send authorized representatives with notarized power of attorney. The notario verifies the nota simple on the closing date.

Transfer tax (ITP) or IAJD must be paid within 30 days of the escritura date; self-liquidation filing with the regional tax authority is required. Load all closing documents into Ellty. Confirm document receipt for each advisor in real time.

What makes Spain different

The ITP vs IVA choice is the most important pre-contract decision in Spanish CRE. On a EUR 20M transaction, ITP at 10% (Catalonia) is EUR 2M non-recoverable. IVA at 21% is EUR 4.2M in VAT, but a VAT-registered buyer recovers all of it as input tax. The economic cost difference is EUR 2M. Get the tax analysis before signing anything.

Urbanismo is decentralized. Each of Spain's 17 autonomous communities and 8,000+ municipalities has separate planning frameworks. A single building can be subject to national, regional, autonomous community, and local plans simultaneously. Confirm which plan controls the permitted use.

IBI arrears follow the property. If the seller has 4 years of unpaid IBI, that debt is a registered lien that transfers to the buyer at closing. The Ayuntamiento will not issue a tax clearance certificate until the IBI is paid - but they won't always alert you proactively. Request the 4-year IBI receipt history upfront.

Spain's licencia de primera ocupación gap is more common than buyers expect. Older commercial buildings in central Madrid, Barcelona, and coastal tourist areas were often built under permits that were never finalized with the first occupancy certificate. Regularization is possible in some cases but adds cost and time.

Timeline and cost in Spain

Weeks 1-2 cover kickoff: nota simple from Registro de la Propiedad, Catastro extract, informe urbanístico from Ayuntamiento, ITP/IVA tax structure analysis, IBI receipt request, and Phase I ESA engagement. Budget EUR 4,000-12,000 for this phase.

Load all files into Ellty before advisors arrive. Scoped, tracked links for each party remove at least one week of document request emails from a standard Spanish CRE diligence process.

Weeks 2-4 cover deep review: licencia de primera ocupación confirmation, Phase I ESA delivery, lease abstraction, building permit history, ITE check for older buildings, plusvalía municipal calculation, and operating cost audit. Cost runs EUR 6,000-20,000 depending on asset complexity.

For Catalonia COSI register sites and Basque Country industrial heritage: Phase II ESA adds EUR 10,000-40,000. Don't skip this step for any former industrial parcel in these regions.

Weeks 4-6 handle resolution: Phase II if triggered, ITP/IVA election documentation, notario deed preparation, and Registro de la Propiedad inscription. Registry inscription typically completes within 15 working days of filing.

Spain total acquisition cost: 6-10% ITP (varies by autonomous community) or 21% IVA + 0.5-1.5% IAJD + notario fee (0.1-0.5%) + Registro inscription + legal fees EUR 15,000-40,000. For a Madrid commercial deal with ITP at 6%, total acquisition cost runs approximately 7-8% of purchase price.