Buying property to let remains one of the most popular investments in Spain — including among foreign buyers. But the real return is not decided the day you rent the place out: it is decided the day you buy. An unexpected building levy, an official flood zone that inflates insurance, surroundings that scare tenants away or a planning problem can turn a 6% gross yield on paper into a loss. This checklist covers the risks to verify before making an offer, organised in three fronts: the asset, the land and the paperwork.

1. The yield is calculated before you buy

The first mistake is calculating the yield with the asking price and the expected rent, and nothing else. On top of the purchase price come the transaction costs — transfer tax (ITP) or VAT, stamp duty, notary and agency fees, which can exceed 10% depending on the region — plus the cost of making the home lettable. A 1975 flat with no renovation does not compete in today's rental market. And always benchmark the asking price against real registered sales in the area, not against other listings: listings reflect wishes; registered transactions reflect the market. Our purchase cost calculator helps you build the real number.

2. The asset: condition, levies and the building's paperwork

  • Real surface area (Cadastre): the yield per m² changes if the listing inflates the size. Check the official cadastral record: use, surfaces, year built and building units.
  • ITE/IEE building inspection: a building with an expired or unfavourable technical inspection is a deferred levy. See how the Spanish building inspection system works.
  • Approved or foreseeable levies (derramas): ask for the community of owners' minutes before you offer.
  • Habitability and minimum surface: if you plan to split the property or rent by rooms, the regional habitability thresholds rule.
  • Energy performance certificate: the rating conditions the rent you can charge and access to renovation aid. When registered, the Hogarfax report includes it.
  • Hidden defects: know the legal regime and claim deadlines before buying, not after. Guide to hidden defects in Spain.

3. The land and surroundings: what drives resale and tenants

Land risks are invisible during a viewing and are the hardest to undo: you cannot renovate your way out of a flood zone. Before investing, cross-check the exact parcel — not just the municipality — against official cartography: river and coastal flooding, wildfire risk, radon, seismicity, land classification and coastal or waterway constraints. Then the surroundings a tenant will notice: high-voltage power lines, industrial estates, motorway, rail and airport noise, and municipal crime statistics. All of it sits in public sources and can be checked online on the exact parcel in minutes.

4. The paperwork: who owns it and what it owes

The third front is documentary. The nota simple from the Land Registry tells you who the owner is and what charges encumber the property (mortgages, liens, easements); the risk report tells you what the home and its surroundings are exposed to. They do not compete — they complement each other, and a serious investor gets both. We explain the differences in Land Registry extract vs risk report and which documents to request from the seller before signing anything.

5. How to run the whole checklist in minutes

Running these checks by hand — Cadastre, flood cartography, radon, planning, surroundings, real sale prices — takes hours per candidate, and an investor compares dozens. Hogarfax, Spain's pioneering platform of this kind, cross-references 25+ official checks on the exact parcel and returns the full report instantly, with a layered map viewer and a PDF, for €24.90 (VAT included). It works from any address or cadastral reference, anywhere in Spain.

Analyse your next investment before you offer

Enter the address or cadastral reference and review the first checks on the exact parcel for free: risks, land, surroundings, condition and price against the real market.

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