The right documents at the right stage
When buying a new-build property in Spain, “guarantees” can refer to several different things. Protection for your construction payments, the developer’s contractual commitments, statutory responsibility for building defects and structural insurance each serve a particular purpose.
This guide explains the documents and questions to discuss with your agent and independent lawyer, with a technical specialist involved when needed. It covers the national framework used for new-build properties on the Costa Blanca and elsewhere in Spain; the project, contract and local requirements still need individual review.
For location, purchase costs, mortgages and the wider process, return to our Costa Blanca buyer guide.
Protecting advance payments
Off-plan purchases often involve a reservation and further instalments before the property is ready. Those payments reduce the price outstanding at completion. Ask for a schedule that identifies each price instalment, IVA and the total transfer due.
A special account and a guarantee support the protection of qualifying construction advances. Your lawyer should check both the payment destination and the document naming you and the property; a bank logo on sales material is not evidence of your individual cover.
The checks to make before paying
- Identify the developer, exact unit and building-licence status.
- Obtain the individual guarantee or insurance evidence and verify the issuing institution.
- Check the amounts, taxes, payment dates and duration against your contract.
- Confirm the designated account through a trusted channel and keep each receipt.
- Have your lawyer explain the refund triggers, notice procedure and deadlines.
The Building Act’s guarantee obligation starts when the building licence is obtained and covers advances, applicable taxes and legal interest. A pre-licence reservation needs specific advice about its terms and protection. Source: first additional provision.
Banco de España explains the special-account and guarantee arrangements. The existence of a developer’s construction loan does not by itself establish the cover for your payments.
The contract, specification & delivery
Read the reservation and purchase contract as a connected set of documents. They should identify the property and annexes, the agreed price, IVA, specification, payment calendar and delivery commitments. Ask how changes will be documented and which decisions require your agreement.
Keep the dated brochure, floor plan, written inclusions and correspondence about promised features. Under Spain’s housing-information rules, advertised characteristics and conditions can be enforceable even when they are not expressly repeated in the contract. Have any mismatch resolved before signing.
If construction is delayed
Ask your lawyer to compare the agreed deadline, the reason for delay and the available remedies. Keep the developer’s explanation and any proposed extension in writing. If you consider extending the deadline, have the effect on payment protection checked too.
Choosing to withdraw, a declined mortgage and failure by the developer raise different contractual questions. Do not assume they all produce the same refund. Obtain advice before signing an extension, accepting a settlement or changing your payment arrangements.
The official consumer guidance on new-build purchases explains the return-of-advances provisions to look for. Your lawyer should handle the formal notices needed for your case.
The 1, 3 & 10-year rules
Spain’s Building Act distinguishes material damage by the kind of defect involved. The familiar one-, three- and ten-year periods describe statutory responsibility; they do not mean every issue has ten years of cover.
1 year · Finishes
Material damage from defects in execution affecting finishing work. The builder has a specific responsibility in this category.
3 years · Habitability
Material damage from defects in construction elements or installations affecting the building’s habitability.
10 years · Structure
Material damage from defects in structural elements that directly compromise mechanical resistance and stability.
An inspector’s assessment helps distinguish a cosmetic defect from a deeper construction problem. A mark or crack alone does not tell you which category applies.
When do the periods start?
The relevant date is acceptance of the completed works by the developer, without outstanding issues, or once issues recorded at acceptance have been corrected. It can be earlier than your purchase or key collection. Request the record and have the dates confirmed, particularly when buying completed stock.
The deadline for bringing a claim is separate: actions under thisBuilding Act regime generally have a two-year limitation period from the damage occurring. Ask your lawyer to assess the applicable deadline and any other available claims promptly.
Sources: Building Act, Articles 17–18, and the official consumer summary of the periods.
Structural insurance: seguro decenal
Seguro decenal is the ten-year structural insurance commonly encountered in residential developments. Ask your lawyer to verify the actual policy, the building covered, its start date, insured risks and any excess.
The statutory structural guarantee is generally compulsory for buildings mainly intended as housing. There is a limited exception for an individual commissioning one single-family dwelling for their own use, with specific conditions on a later sale. An ordinary developer-built property should have its applicable cover checked.
Ask two separate questions: who is legally responsible for a defect, and which insurer or guarantee, if any, responds to it? The existence of structural insurance does not establish insurance cover for every finish, appliance or maintenance issue. Keep equipment warranties and building cover in separate parts of your property file.
Documents & handover checklist
Build the file as the purchase progresses. It is easier to resolve a missing document before the next payment or signature than to reconstruct the history after a problem appears.
During the purchase
- Reservation and purchase contract, with signed annexes and changes.
- Floor plans, specification, written inclusions and dated sales material.
- Payment schedule, invoices, transfer evidence and individual advance-payment cover.
- Your lawyer’s confirmation of project checks, licence status and the payment account.
Before and at handover
- Handover checklist, dated photos, a written record of outstanding work and any specialist inspection report.
- Relevant completion and occupancy documents and the energy performance certificate.
- Building documentation, including the works-acceptance record and use and maintenance instructions.
- Structural cover, equipment guarantees, manuals and after-sales contact details.
- Deed, registration follow-up and arrangements for utilities and shared facilities.
Ask who will supply each item and when. Your agent follows up on handover items, while your lawyer confirms the required legal documents. A technical specialist can advise on further checks if needed.
The housing-information rules set out information buyers should be able to obtain about the property and seller.
If you discover a defect
Record where the problem is, when you first noticed it and how it has changed. Take dated photographs and retain inspection reports, emails and repair records. Notify the developer or builder in writing and request acknowledgement, an inspection and a proposed response.
For water ingress, cracking or a recurring installation problem, obtain a qualified technical assessment. Inform the community administrator if shared parts of the development are affected. Take reasonable steps to prevent further damage while preserving the evidence.
Ask your lawyer to identify the responsible parties, applicable claim route and deadline. Do not rely on an informal promise that the issue will be dealt with later. Discuss any request to sign a final settlement or waiver before accepting it.
Keep a simple log of the report date, recipient, response and next action. This practical record helps your advisers follow the history without relying on phone conversations or memory.
Frequently asked questions
Have the payment, building-licence status and guarantee documents checked before paying. The reservation terms and the legal protection of construction advances are specific to the transaction. A statement that the development is financed by a bank is not enough to establish your individual cover.
The statutory building-defect periods use the works-acceptance date, with any issues recorded at acceptance corrected. It can precede your key handover. Ask for the record and confirmation of the applicable dates.
The snagging inspection records the property’s condition and outstanding items at that stage. Later defects may raise separate rights and deadlines. Keep reporting problems as they arise and obtain advice about the relevant claim.
We help compare developments, obtain information from the developer and coordinate the purchase and after-sales contact. Your independent lawyer advises on contracts and guarantees; your technical inspector assesses defects.
