Real Estate Due Diligence in Spain

What is Real Estate Due Diligence in Spain?

Buying property in Spain can be complex. Issues such as illegal constructions, planning infringements, unpaid taxes, hidden charges, community problems or irregular tenancies are more common than most foreign buyers expect. A real estate legal due diligence is a comprehensive audit carried out before purchase to verify that the property is legally sound and that what you are buying actually matches what is being advertised.

At NomadTaxSpain, we review all legal, urbanistic and administrative aspects of the property so that you can proceed with confidence or renegotiate terms before signing any deposit or purchase deed.

What our Real Estate Due Diligence covers

Our due diligence answers the key questions every buyer should ask before committing:

• Is the seller the true owner and legally able to sell?
• Is the title clean, correctly registered and updated?
• Are there debts, mortgages, liens or court actions affecting the property?
• Are all buildings, reforms and extensions legal and properly licensed?
• Is the urbanistic and planning status in order for the intended use?
• Are property taxes and municipal obligations up to date, with no hidden liabilities?
• Are there tenancies, occupants or tourist licences that affect how you can use the property?
• Are there technical or infrastructure issues that may require major investment after purchase?

The result is a clear picture of the legal and economic reality of the property, not just the marketing brochure.

1. Ownership and title verification

We start by confirming that the seller is the legitimate owner and that the legal description matches the physical reality.

• Land Registry extract (nota simple).
• Ownership and title chain.
• Mortgages, charges, liens and easements.
• Boundary descriptions and land classifications.
• Pending court proceedings or embargoes.

This confirms whether the seller can legally sell, whether third–party rights exist and whether the property is free from legal obstacles that could block or delay the transaction.

2. Urbanistic and building compliance

Urbanistic compliance is critical in Spain, especially in areas with sensitive planning rules such as islands and coastal or rural zones.

• Building permits and licences for works and reforms.
• Final works certificates and occupancy or habitability.
• Historical planning files and reports from the Town Hall or local authority.
• Legal status of extensions, pools, terraces, annexes and conversions.
• Protected zones, coastal restrictions and rural land limitations.

We detect illegal works, constructions without licences, expired planning permissions or non–regularisable areas that can prevent you from reforming, using or reselling the property in the future.

3. Tenancy, occupation and community status

We check who is occupying the property and which community or rental rules apply so that you do not inherit hidden problems.

• Existing lease agreements or occupants.
• Short–term rental licences and tourist use limitations, where applicable.
• Community of owners rules, use restrictions and internal regulations.
• Pending community debts or extraordinary assessments.
• Structural issues or building–wide problems.

This ensures you do not acquire a property with illegal tourist rentals, unresolved disputes or unpaid community charges attached to it.

4. Tax and municipal situation

We verify that the property is up to date with all taxes and municipal obligations and identify any liabilities that may pass to you.

• Property tax (IBI) and waste collection tax.
• Status of municipal capital gains tax (plusvalía).
• Seller's capital–gains position and implications for the transaction.
• Pending municipal sanctions, fines or administrative files.
• Possible subsidies or planning files that affect the property.

Proper tax and municipal checks avoid unpleasant surprises after completion, such as inherited debts or sanctions.

5. Utility, infrastructure and technical checks

Where relevant, we also review or coordinate technical and infrastructure checks that affect the usability and long–term value of the property.

• Energy performance certificate.
• Water and electricity connections and contracts.
• Technical building inspection for older blocks.
• Septic tank compliance and rural infrastructure.
• Easements affecting utilities, access or shared infrastructure.
• Private road arrangements or shared driveways with neighbours.

For rural or complex properties, these checks are essential to avoid costly future works and compliance issues.

What you receive in the due diligence report

At the end of the process you receive a clear written report that summarises our findings and recommendations.

• Executive summary of key findings.
• Identified risks and their practical implications.
• Recommended actions, conditions or negotiations before completion.
• Our assessment of whether the property is compliant or regularisable.
• A clear conclusion: safe to proceed, proceed with conditions or advisable not to proceed.
• Guidance for the deposit contract and the final purchase deed.

This gives you a solid basis to renegotiate price or conditions, request remedial actions or, if necessary, walk away before committing.

Why real estate due diligence is essential in Spain

Spanish real estate law largely places responsibility on the buyer, not the seller. Once you have completed the purchase, most issues become your problem, even if they were pre–existing. Proper due diligence helps you avoid:

• Buying illegal or non–regularisable constructions.
• Unexpected refurbishment or legalisation obligations.
• Fines or sanctions from the Town Hall.
• Boundary or land–use conflicts with neighbours or public bodies.
• Hidden debts, liens or community charges.
• Problems reselling the property later.

For international buyers, due diligence is the safest way to protect an investment and ensure a smooth acquisition process.

Why choose NomadTaxSpain for your property due diligence

We act exclusively in the buyer's interest and combine legal, tax and practical expertise specifically for international clients buying in Spain.

• Specialists in assisting international buyers in coastal, island and rural areas.
• Strong knowledge of urbanistic law, rural land restrictions and coastal regulations.
• Coordination with notaries, registries, architects and technical experts where needed.
• Clear, practical explanations in English, focused on real risks.
• Fast, reliable turnaround and transparent fees.
• Tailored packages depending on the complexity and location of the property.

Start your Real Estate Due Diligence in Spain

Before signing a reservation contract, paying a deposit or completing at the notary, make sure the property is legally sound and free from hidden risks.

Share the basic details and documentation of the property with us and we will begin the due diligence, guiding you throughout the transaction so that you can decide with full information and peace of mind.