PropertinspainBuying in Spain from abroad

Note

Building a house in Spain: the sequence from plot to registry

By Daniel WhitcombeReviewed by Marta Calderón IbáñezPublished Updated Stage 3: Choose where and what

Quick answer

Building a house follows a sequence: confirm the plot, design with an architect, obtain permission, sign the builder’s contract, build under supervision, finish with a completion certificate, connect services and register the new house. Skipping one step can block the next.

Applies toBuyers planning to build a house on a plot they own or intend to buy.

On this page: 12 sections
  1. The sequence
  2. Plot and brief
  3. Design and project
  4. Permission
  5. Contract and works
  6. Completion
  7. Connections
  8. Registry and cadastre
  9. Guarantees and records
  10. Time and money
  11. Site safety
  12. Your role
Checked 26 October 2026by Marta Calderón Ibáñez. Claims on this page are tied to the sources listed at the end.

§ 1The sequence

A self-build moves through stages, and each depends on the one before it. They come in a fixed order. It belongs to the chapter in how land and self-build works, which covers the plot and the money.

§ 2Plot and brief

Confirm the plot, as the chapter explains, and write a brief: size, rooms, budget, style and timing. Give it to the architect, and ask what the plan allows. The plan sets height, footprint and distances to boundaries, and the architect can tell you what fits.

§ 3Design and project

The architect designs the house and prepares the project that goes to the town hall. The project includes plans, specifications and a budget. More on architect and builder explains how to engage an architect and a builder. Check the project against your brief before it is filed.

§ 4Permission

The town hall examines the project and grants permission. More on planning permission explains how it works. Do not start before you have it, and keep the permit, because the registry will ask for it at the end.

§ 5Contract and works

Sign a written contract with the builder that sets the scope, the price, the programme, the stages of payment and the guarantees. A technician directs the works and certifies progress. Pay against the certified stages. More on build cost explains the budget.

§ 6Completion

When the house is finished, the architect issues a completion certificate and the town hall may give a final authorisation. You then need the energy certificate and the documents for the utilities.

§ 7Connections

Apply for water, power and sewage early, because they take time. Remote plots may need wells, solar systems or septic tanks, each with its own rules and permits.

§ 8Registry and cadastre

The new house must be recorded in the registry, usually by a deed of new construction, and in the cadastre. A house that is not recorded is hard to sell, insure or mortgage. Your lawyer and architect prepare the documents.

§ 9Guarantees and records

The building law sets liability periods and a ten-year guarantee for housing, with a special rule for an individual who builds one home for personal use. Keep the plans, permits, contracts, invoices and certificates in one file.

§ 10Time and money

Self-builds take longer than planned. Keep a programme, review it monthly with your architect and keep a reserve. If you borrow, ask the lender how it releases funds during works. The mortgages section explains the loan in general terms.

§ 11Site safety

A building site has legal duties on safety. The promoter appoints a safety coordinator and a plan, and the builder must follow it. Ask the architect who covers this role, and keep the documents.

§ 12Your role

The owner takes decisions, pays and signs. Decide who speaks for you, what you approve, and how fast you reply. Delays by the owner can cost as much as delays by the builder. Visit the site, ask questions and keep notes.

FAQRelated questions

What is the order of a self-build?

Plot checks, design, permission, contract, works, completion, services and registration. Each step needs the previous one, so a delay in permission delays everything. Keep a programme and update it with your architect.

Who supervises the works?

A technician, often the architect, directs the work and certifies progress. A safety coordinator may also be needed. Their roles are written in the contracts, so ask who does what and for what fee.

How is the finished house put on record?

A notarial deed declares the completed building, which is then entered in the registry and the cadastre. Lawyer and architect assemble the papers; the registry looks for the completion certificate and the permit.

Sources

About this page

Written by

Daniel Whitcombe

Writer, buying and living in Spain

Daniel writes the chapters on how a purchase runs, who can buy, where to buy and how to check a location. He writes for readers who are new to the Spanish system and prefers plain explanations that name the official source. He is not a lawyer or adviser.

Reviewed by Marta Calderón Ibáñez, chief editor and source editor, 26 October 2026. Checked: Figures and rules checked against the official texts listed below

Found an error? Report it. Each report gets a dated reply, and confirmed corrections are logged on the updates page.

Legal note. How the process works in general. It is not legal advice, and it never replaces an independent Spanish lawyer acting for you.