The pool is missing from the deeds: buying Spanish property with undeclared buildings

1. Establish exactly what the sale includes

A viewing may present a complete property: the main house, an enclosed veranda, a pool, a pump room and a guest studio. The Land Registry extract may describe only a single-storey dwelling. Neither an immediate conclusion of illegality nor a promise that a notary can fix everything answers the buyer’s concern. The missing description is a reason to investigate each element and understand how important it is to the intended purchase.

Ask the seller to identify everything included in the sale on a plan. Separate enclosed buildings from open surfaces, installations from buildings, and private areas from communal property. A studio promoted as an independent apartment requires different enquiries from a tool shed. The investigation should establish whether the use you value and are paying for has adequate documentary support, as well as whether the asset can be described accurately in a deed.

This opening exercise prevents the issue from disappearing into a vague reference to outdated square metres. If you chose the property because it apparently contains two homes, but only one has an acceptable residential use, the difference affects the purchase itself. Registering the overall built area would not, on its own, answer that separate concern.

2. Four histories that require different solutions

One possibility is that the works had permission but the corresponding declaration was never executed or registered. Another is that the declaration covered only part of the property: the original dwelling appears, while a later extension does not. There may also be unauthorised works whose position depends on their date, location and applicable legal regime. Finally, the structure may lie outside the plot or occupy communal property. These histories call for different solutions and different budgets.

Reconstruct the sequence of purchase, design, permission, construction and later alterations. Documents must relate to the same structure: permission for a pool does not automatically cover a subsequent veranda enclosure. Ask for deeds executed after the original acquisition, because a later instrument may have updated the description without reaching the sales file. A recent nota simple identifies the current entry but does not replace the historical investigation where that is necessary.

The outcome should be a plain explanation of the missing step. A matching permission with an incomplete deed can support a defined administrative plan. An unknown construction date and an uncertain right to retain the building require further investigation before anyone treats the problem as a predictable professional fee.

Legal framework and sources: BOE · Real Decreto 1093/1997, arts. 45–55: declaración de obra nueva ↗

3. Why Cadastre, tax bills and photographs are not enough

A pool shown in the Cadastre provides useful information about its location and recorded description. A local property tax bill can show that a fiscal reference is being used to assess IBI. Neither document should be presented as a municipal certificate confirming planning legality. Cadastral information serves its own purpose and can be current in one respect while outdated in another.

Historical orthophotography can help establish when a structure visible from the air was present. Preserve the source, flight date and image resolution, and explain what can actually be observed. A roof may conceal the internal layout; an image of the pool does not by itself establish the completion date of an adjoining extension. Equally, an object hidden by trees is not proved absent. The technical professional should relate the imagery to the site inspection and other historical evidence.

A purchase report should preserve the origin of every material statement: observed by the buyer, depicted by the Cadastre, described in the Registry or certified by the municipality. That distinction makes confirmed facts and outstanding enquiries understandable. Entering the largest number into every area field creates superficial consistency while potentially concealing the very issue the investigation was intended to reveal.

Legal framework and sources: BOE · Ley del Catastro Inmobiliario: contenido y procedimientos de incorporación ↗

4. Age-based registration has specific conditions

The phrase declaración de obra nueva por antigüedad can sound like retrospective planning permission. Article 28.4 of Spain’s consolidated land legislation instead provides a registration route for qualifying works where demolition-based restoration measures are no longer available because the relevant periods have expired. It requires evidence of completion at a particular date and a matching description, with registry checks and communication to the municipality.

Applying that route to a particular property requires examination of regional legislation, changes over time, the land classification and the circumstances of the works. There is no responsible single number of years to insert into every Spanish property report. The relevant period and its exceptions may differ. Administrative action, the available evidence of completion and special treatment of protected land can also matter.

Consequently, a statement that the building is old and everything has expired is incomplete. The adviser should identify which enforcement power is said to be out of time, the facts supporting that conclusion and the remaining limitations. Registration and planning status are connected questions, but a buyer needs both answers before deciding whether the property can support the intended occupation, renovation or financing. A deed is one part of that assessment, not the entire evidence file.

Legal framework and sources: BOE · Texto refundido de la Ley de Suelo y Rehabilitación Urbana, arts. 27 y 28 ↗

5. Municipal status and restrictions that may remain

Request planning information that identifies the property and each disputed structure. Relevant enquiries include existing permissions, located enforcement files, outstanding orders and the regime governing retention, alterations and use. The scope of the reply matters: a certificate dealing with files held in one municipal archive may not address every sectoral restriction or confirm whether future works are feasible.

Andalusia provides an instructive example. Its LISTA legislation distinguishes recognition of an asimilado a fuera de ordenación status from legalisation; article 174 expressly maintains that distinction. For an international purchaser, translating every administrative status as a legal house would lose essential meaning. The particular resolution and applicable regime need to explain what may be retained, which interventions are allowed and what conditions remain outstanding.

A restriction may be acceptable to someone intending to preserve the house unchanged but decisive to a buyer planning reconstruction or enlargement. Ask the technical and legal advisers to assess the actual project rather than an unspecified residential use. If you need more bedrooms, another enclosed terrace or replacement of a structure, determine before purchasing whether the proposal has a defensible legal route and can be delivered technically. A purchase based on different assumptions may prove unsuitable even if current occupation continues.

Legal framework and sources: Junta de Andalucía · LISTA consolidada, arts. 173–174: asimilado a fuera de ordenación ↗

6. Define the technical professional’s instructions

The technical appointment should include an inspection, measurements and an individual description of the dwelling, outbuildings, verandas, pool and other relevant installations. Ask for built area, usable floor area, building footprint and plot size to be separated. The professional responsible for each task should establish their competence and the scope of their certification. Commissioning an unspecified certificate without identifying the question it must answer is rarely useful.

The file may need plans, coordinates for the ground occupied by the works, an explanation of the measurement method and evidence supporting age. Article 202 of the Mortgage Law addresses georeferenced identification of the ground occupied by buildings. The geometry needs to establish that the declared works lie within the correct property. A pool beside a boundary requires particular attention where the boundary itself is uncertain.

Keep this task separate from a condition survey. A document prepared to describe and register a building may not investigate leaks, structural condition, electrics, waterproofing or pool safety. Where these issues affect value or occupation, expressly include them in the instructions or commission a further inspection. A sound purchase decision needs both a clear legal position and a realistic understanding of the physical asset being acquired.

Legal framework and sources: BOE · Ley Hipotecaria, art. 202: identificación georreferenciada de edificaciones ↗

7. Assemble a decision-ready evidence file

Ask the seller for the complete ownership deed, current registry information, the descriptive and graphic cadastral certificate, available permissions and projects, technical certificates and municipal correspondence. Add recent photographs identified on a plan and a written explanation of works carried out during the seller’s ownership. Where a document is missing, record what was requested, from whom and with what result instead of turning the gap into a favourable assumption.

Each finding should lead to a defined closing document. A pool missing from the deed may require completion of the property description and evidence about planning status. A veranda converted into a bedroom also raises use, area and room-condition questions. For a shed adjoining a track, establishing the boundary or a sectoral restriction may take priority over investigating age.

Documents have different evidential purposes and do not answer interchangeable questions. Preserve original electronic files and verification codes where available. A messaging-app screenshot may provide an initial clue but makes its date, completeness, addressee and scope harder to check. The final file should allow another person to reconstruct why an issue was considered resolved, and should identify any assumption that still needs confirmation before the purchase moves forward.

8. Turn contractual promises into verifiable outcomes

Before signing an arras deposit agreement, define the position you are prepared to accept. A promise that the seller will regularise the pool leaves essential questions unanswered: which procedure, what outcome, by when, and whether merely filing an application is enough. Identify the affected structures and the documents required to demonstrate performance, using the technical and legal assessment already undertaken.

Continuation of the purchase might depend on a particular administrative outcome, completion and registration of a deed, or confirmation of an essential intended use. The agreement should cover the seller’s cooperation, inspection access, delivery of information, a final deadline and the consequences of a negative decision or administrative delay. Where mortgage finance depends on the outcome, coordinate the contractual timetable with the lender’s requirements as well.

Not every Spanish deposit agreement automatically entitles the buyer to repayment when an irregularity is found. Its wording, the information supplied and the applicable legal regime matter. The practical aim is to prevent the completion date from arriving before the required enquiries can finish. Agreeing protection at the outset generally provides a clearer position than trying to reinterpret a generic clause once the deposit has already been paid and both parties expect the transaction to proceed.

9. When retaining purchase money can help

Retaining part of the purchase price can help fund defined outstanding steps, provided the transaction is viable and the mechanism is properly documented. The figure should follow actual quotations and identified items: technical work, notarial documents, registration, applicable taxes, administrative charges and necessary physical work. An improvised percentage may bear little relationship to either the unfinished work or the identified exposure.

Agree who holds the money, when payments are made, the evidence required for release and what happens if expenditure exceeds the estimate or a balance remains. The arrangement should also address non-cooperation, refusal of an application and expiry of the deadline. Any deposit or security mechanism requires the agreement of its proposed administrator. Do not assume that the notary will hold funds or operate a retention without precise arrangements.

Money retained does not create permission or make incompatible works acceptable. Nor does it necessarily compensate for losing the principal use that motivated the purchase. If an additional dwelling is essential and its continued residential use has not been established, completion may need to depend on achieving that result first. A substantial discount cannot replace the missing answer about whether the property meets the buyer’s needs.

11. Mortgage finance, insurance and eventual resale

The issue should be disclosed to those making financial decisions about the property. The lender and valuation company may require further documents or assess space differently while its position remains uncertain. Obtain a response based on the actual file rather than assuming that an earlier mortgage illustration includes every observed structure and advertised use.

When arranging insurance, describe buildings, installations and intended uses accurately. Coverage depends on the policy and information supplied, so expressly review elements previously absent from the deeds and any planned works. Advice about registration does not replace checking the insurance contract with the insurer. Keep written answers to material questions alongside the purchase documentation rather than relying on an informal assurance during a telephone call.

Consider eventual resale as well. A coherent file allows the next purchaser to understand what was declared, on what evidence and subject to which restrictions. Retain decisions, final plans, registered documents, completion evidence and cadastral updates. Accepting uncertainty now may mean explaining it again when you sell, possibly to a mortgage-funded purchaser with a different appetite for risk. The present decision should account for that exit cost and the possibility that your own circumstances will change.

12. What the final purchase report should explain

A useful report finishes with a conclusion proportionate to the evidence. It should identify the observed structures, show which sources record them and explain material differences. For each issue, describe the consequences, missing documents, the person responsible for obtaining them and when they must be available. Where registration work is proposed, explain what it resolves and which planning questions remain open.

The recommendation might be to proceed once defined conditions are met, renegotiate the scope of the purchase, or suspend the transaction. It may also conclude that there is insufficient evidence to decide. An unverified finding is useful when accompanied by a concrete next step. An unqualified statement of no problems has little value if it merely means that nobody consulted the relevant file.

Spain Property Check can help organise the nota simple, cadastral information and structures you identify at the property, making the unresolved questions visible. The decisive work remains connecting those inputs with the appropriate technical and administrative evidence. Whenever an undeclared structure affects occupation, alterations, finance or resale, the contractual decision should follow an assessment specific to that property and to the purchase you actually intend to make.