Note
Restoring a ruin in Spain: the steps and the checks
Quick answer
Restoring a ruin works in order: confirm in writing that rebuilding is allowed, survey, design with an architect, obtain permission, contract the builder, connect services and register the finished house. Skipping a step can cost the project.
Applies toBuyers who own or plan to buy a ruin and want to turn it into a home.
On this page: 11 sections
§ 1The order of work
Restoring a ruin is a sequence, and each step depends on the one before. The order is: confirm the right to rebuild, survey the remains, design, obtain permission, contract the builder, connect services, finish and register. This page belongs to the chapter in buying a property in Spain in need of renovation, and the purchase of a ruin is covered in the rural property chapter.
§ 2Confirm the right
Ask the town hall for a written answer on the classification of the land and on whether the remains can be restored or rebuilt. If the answer is no, or uncertain, do not proceed on hope. Ask your lawyer to read the answer. We did not read any regional rule for this page.
§ 3Survey
A technician surveys the remains, the boundaries, the ground and the access. The survey says what can be kept and what must be rebuilt, and gives a base for design. Surveys of old stone can reveal that less is salvageable than it looks.
§ 4Design and permission
An architect designs the work and prepares the project that the town hall needs. The land and self-build chapter explains how to engage an architect and a builder, and more on renovation permits explains the permits. Protected or rural land may require approvals from more than one authority. Wait for the permission before work starts.
§ 5Contract
Sign a written contract with the builder that sets the scope, the price, the stages, the schedule, the payment terms and the guarantees. Ask for a programme and insurance. Avoid paying large sums in advance. The building law sets liability periods for defects, as the page on renovation explains.
§ 6Services
Arrange water, power and sewage early, because they take time and may need separate permits. In remote places, consider whether wells, tanks, solar or septic systems are allowed, and who must approve them.
§ 7Finish and register
At the end, the architect issues a completion certificate, and the town hall may give a final authorisation. Record the new house in the registry and the cadastre, and obtain the energy certificate. A house that is not recorded is hard to sell or insure.
§ 8Costs
We print no figure for the cost. More on renovation cost explains how to build a budget with quotes and a reserve.
§ 9Keep records
Keep the plans, permits, contracts, invoices and certificates in one file. You will need them for the registry, for tax and for a future sale.
§ 10Insurance during works
Ask the builder and the architect what insurance they hold, and ask your insurer what cover you need while the building is open to the weather. Theft of materials is common on isolated sites, so ask about storage and watching.
§ 11Questions to ask the architect
Ask how many ruins they have restored, how long permission took, what went wrong and how they handled it. Ask for references and examples. Ask how the fee is set and what happens if the answer from the town hall is no. Keep the replies in writing.
FAQRelated questions
What comes first?
The written confirmation that you may rebuild, plus the legal status of the remains. Without it, design and money can be wasted. Ask the town hall and your lawyer, and make the purchase conditional on a favourable reply.
How long does a restoration take?
There is no standard time. It depends on permission, weather, the builder and the scale. Permission can take longer than building. Plan for delays, and keep a reserve of time and money.
Do I need to register the result?
Yes. A completed work should be recorded in the registry and the cadastre so that the new house is legal and can be sold or mortgaged. Ask your lawyer and architect how it is done where you are.
Sources
- Boletín Oficial del Estado: Ley 38/1999 de Ordenación de la Edificación (official source, opens in a new window), Articles 17 and 19; disposiciones adicionales primera y segundaLast checked 17 October 2026
- Agencia Tributaria: ¿Qué tipo se aplica a las obras en viviendas? Obras de renovación o reparación (official source, opens in a new window), Reduced VAT rate for renovation and repair of dwellingsLast checked 18 October 2026
- Boletín Oficial del Estado: Texto refundido de la Ley de Suelo y Rehabilitación Urbana (RDLeg 7/2015) (official source, opens in a new window), Arts. 15, 17 and 21: duty to conserve; rural and urbanised landLast checked 17 October 2026
Legal note. How the process works in general. It is not legal advice, and it never replaces an independent Spanish lawyer acting for you.