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Due Diligence

Buying Land or a Plot to Build

Not every plot lets you build what you imagine. Before buying, you must verify the planning classification and buildability.

Due Diligence · Updated October 2026 · 6 min read

✓ Content reviewed by collaborating registered lawyers of the platform. Last updated: October 2026. Based on official sources (BOE, Generalitat de Catalunya, Agència de l'Habitatge, ICAB). See our editorial policy.

Buying land to build carries a risk that does not exist with a flat: that you cannot build what you want. The key is the planning classification.

Types of land

  • Urban: suitable for building, with services; the safest.
  • Developable: pending development (plans, urbanisation, land cessions); more uncertainty and costs.
  • Non-developable / rural: with strong limitations; generally you cannot freely build housing.

What to check before buying

  • Buildability, uses, heights and setbacks under the municipal planning.
  • Pending planning charges (urbanisation, cessions) and constraints (coast, roads, heritage).
  • The situation in the Registry and Cadastre, and available services.

We request a planning certificate or report from the Council and run the due diligence before you sign, so you know exactly what you can build.

Frequently asked questions

We answer your questions


No. It depends on the planning classification: urban land is suitable, developable land needs development and rural or non-developable land has strong limitations. It must be verified before buying.

It is how much and how you can build under the planning (buildable metres, uses, heights, setbacks). It is worth requesting a municipal planning report before the purchase.

Urban land is ready to build on immediately; developable land requires prior development; non-developable land generally does not allow housing. It determines what and when you can build.

Nota simple, a municipal planning report or certificate, verification of services (water, electricity, sewage, access) and a check of charges, easements and encumbrances. It is essential due diligence.

That is why it is advisable to make the arras conditional on planning confirmation and to run the checks before paying the bulk of the price. We help you secure the deal.

Buying land to build?

We verify the planning classification and what you can build before you buy the plot.

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