Buying a flat in Barcelona is one of the biggest financial decisions of your life, and the process has many moving parts. This guide orders them into 8 stages and, at each one, links you to specific guides and the analyzer so you don't skip anything important.
1. Budget and financing
Before looking at flats, fix how much you can really spend:
- Available savings: you need to cover the down payment (usually 20% of the price not financed by the bank) plus costs and taxes.
- Costs and taxes: budget an extra 11–13% on top of the price for second-hand property (ITP, notary, registry, administrative agency). We break it down in the tax guide.
- Repayment capacity: the monthly payment shouldn't exceed ~1/3 of your net income.
2. Search and area
Choosing a neighborhood in Barcelona is half the purchase. Each area has its €/m² price, yield and profile. Compare in our neighborhood guide and check the zone comparator before falling in love with a specific flat.
3. The visit: what to look for
On the visit, beyond aesthetics:
- Orientation and light (visit at different times if you can).
- Damp, cracks and condition of carpentry.
- Installations: age of electricity, plumbing and gas.
- Common areas and façade: condition of the building, not just the flat.
- Noise and surroundings at different times of day.
4. Legal and technical checks
Here's the heart of a safe purchase. Before the deposit agreement, check:
| What | For what | Where |
|---|---|---|
| Cadastre data | Year, surface, property use | Analyzer / Cadastre |
| Land Registry simple note | Ownership and charges (mortgages, liens) | Registry |
| ITE | Building condition (≥45 years) | Administrator / Agència |
| Habitability certificate | Dwelling fit and utilities | Seller / Agència |
| Aluminosis / asbestos | Structural risk by era | Technical report |
| Energy certificate | Consumption (A–G), mandatory | Seller |
| Community debts | Certificate of being up to date | Administrator |
| IBI (property tax) | Last paid receipt | Seller |
Start step 4 now, free
Type the flat's address and our analyzer gives you in seconds the year, surface, use, whether the ITE is mandatory, the aluminosis/asbestos risk, the area price and a checklist to negotiate. No registration.
Analyze the flat →5. The deposit agreement (arras)
The deposit agreement reserves the flat and fixes price and deadline until the deed. The usual format is penitential arras: if you back out, you lose the deposit; if the seller backs out, they pay you double. Don't sign arras without doing the checks in step 4 — once the deposit is paid, recovering it is expensive.
Paying the deposit in love with the flat and without checking the simple note, ITE or habitability certificate. If a lien, a façade levy or the fact that it's a commercial space without a certificate later appears, you've already put money down. The checks come before the deposit.
6. The mortgage
It's wise to have financing pre-approved before signing arras. Compare several offers (fixed, variable, mixed), look at the APR and not just the rate, and review fees and bundled products. The bank commissions the appraisal; if it detects problems (e.g. unrepaired aluminosis), it may adjust or deny.
7. Notary and taxes
On signing day, before the notary, the price is paid, the seller's mortgage is cancelled (if any) and the keys are handed over. After that:
- ITP (second-hand) or VAT + AJD (new), within 30 business days.
- Registration in the Land Registry.
- Change of ownership of utilities and IBI.
All the tax detail, in the tax guide.
8. After buying
- Activate or change the utilities (you need the habitability certificate).
- Notify the community of the change of owner.
- Keep all documentation and renovation invoices (they count for a future sale).
Quick checklist before signing
- ☐ Budget closed, including 11–13% of costs.
- ☐ Updated simple note reviewed (owner + charges).
- ☐ Cadastre data (year, surface, use) verified.
- ☐ Building ITE and community minutes (levies).
- ☐ Current habitability certificate.
- ☐ Aluminosis/asbestos risk ruled out if the building is from 1950–1977 / pre-2002.
- ☐ Energy certificate.
- ☐ Up-to-date community certificate + last IBI receipt.
- ☐ Pre-approved financing.
- ☐ Price compared with the real €/m² of the area.
Frequently asked questions
How much savings do I need to buy in Barcelona?
As a rule, the down payment (≈20% of price) plus costs and taxes (≈11–13% for second-hand). For a €300,000 flat, around €93,000–99,000 upfront if you finance 80%.
What do I check before signing the arras?
Simple note, cadastre data, ITE and community minutes, habitability certificate, energy certificate, community debts and IBI. You can start free with the analyzer.
Can I recover the arras if my mortgage is denied?
Only if you expressly agreed it in the contract (financing condition clause). By default, in penitential arras, if you back out you lose the deposit. Negotiate that clause if your purchase depends on the bank.
Do I need a lawyer to buy a flat?
Not mandatory, but for operations with charges, inheritances, non-residents or any complexity, a real estate lawyer adds security. The notary attests the act but doesn't defend your interests as a party.
Editorial notice. This guide is indicative and summarizes the general home-buying process in Barcelona and Catalonia known on the update date (2026). Amounts, taxes and procedures may change. Listing Barcelona is an editorial, independent platform; it does not provide legal, tax or financial advice. For your specific operation, consult qualified professionals.