The previous owner remains in Catastro after a purchase: how to identify the right checking route

Neutral AI illustration of folders, blank sheets, a key and a model house; not a Catastro document or confirmation of a change of owner.

The transaction is complete and the keys have been handed over, yet the buyer still sees the seller's name in a cadastral document. Before filling in the first application you find, establish what you are looking at: an old copy, information for another property, a change still under consideration or a matter that nobody has yet addressed. The next step depends on this. The same observation—a previous name—does not explain either the reason for the discrepancy or the appropriate way to resolve it.

This article is for a homebuyer on the Costa Blanca organising checks after a purchase. It does not establish ownership of property or replace individual legal advice. A previous name in Catastro does not by itself mean that an acquired right has been lost, nor should a new name appearing be treated as universal confirmation that everything is in order with the transaction. The task here is narrower: understand the state of the cadastral matter and choose a justified action without creating unnecessary requests.

1. Establish exactly where the previous name remains

Start with the specific material, not a search for a “correct” button. Is this a document the seller supplied before signing, a recent response to an enquiry or a specialist's account? Check the document's own date. An old copy in a folder will not change after a purchase; its contents cannot establish that the current entry is unchanged. If you can see only part of a screen, ask when and how the information shown was obtained.

Describe the observation in one sentence: “The document dated X for property Y names the previous titular.” For now, retain the word titular alongside the field name rather than replacing it with a conclusion about ownership on every possible basis. Note separately whether current information has been checked. This enables the notary's office or your specialist to answer a substantive question rather than untangle the vague statement “I am not in the cadastre”.

If you have not obtained access to the information needed, do not use someone else's account to check it or ask for the seller's password. Explain the situation to the official service and clarify an acceptable way to make an enquiry using your evidence of acquisition. Leave an inaccessible field marked as unverified: lack of access proves neither that the entry is correct nor that it is wrong.

2. Link the purchase to the specific cadastral property

Place the transaction document beside the material showing the previous name. Find the property identifiers and check that the same property is being discussed. Do not try to resolve different addresses solely from a photograph of the façade or the name of a development. If the connection between the identifiers is unclear, raise this before preparing an application to change the titular. Otherwise, you could describe the correct transaction carefully but direct it to the wrong property.

For a parking space or storage room acquired with the apartment, make a separate note: is it covered by the check, and which document shows this? Assume neither that every space must be separate nor that a change relating to the apartment automatically includes every additional property. What matters is the connection to your own document package, not a rule inferred from a neighbouring apartment.

In your own note, it is enough to identify the property, the designation in the transaction, the designation in the cadastral material and any unresolved question about their correspondence. This is not a new table of cadastral values or a check of plot outlines. If discrepancies in area or amounts also emerge, raise them as separate questions. Do not change such data along the way merely to finish the titular issue in a single action.

3. Distinguish notification of the purchase from your own declaration

The Catastro FAQ describes the administrative cadastre separately from the Registro de la Propiedad. A titular catastral can be associated with different types of rights, not only full ownership. The methods of recording changes include a declaración, including form 900D, and a comunicación from notaries, registrars and specified authorities. The FAQ provides an exception to the obligation to declare where information has already been transmitted through the comunicación procedure; use of that procedure is subject to established conditions. A purchase being formalised before a notary should therefore not be turned into a promise that every cadastral entry has already been updated.

A practical question for the notary's office is: “Has information about our purchase been sent specifically to Catastro, which properties and changes does it cover, and what evidence of transmission is available?” Do not stop at “Has everything been sent?” The answer might refer to another recipient or stage. Ask for the action and its result to be identified without assuming that sending, receipt and recording the change are a single event.

If a representative handled the transaction, clarify what the instructions covered and what was actually done. Their receipt of a copy of the escritura should not in itself be treated as evidence of a cadastral filing. Equally, a document missing from your folder does not yet prove that the work was not done: request it first. Agree on one person responsible for further contact so that the buyer, representative and office do not prepare different versions of the same request in parallel.

4. Determine whether this is a new event or an earlier error

The official Asistente de Comunicación Catastro-Ciudadano asks separately whether the change in titularidad results from a new circumstance, such as a purchase. For a buyer following that branch, it directs them to a declaration. If there is no new circumstance, the assistant points to supporting documents and an explanation of the reasons for the requested change. Read this choice alongside the comunicación exception in the FAQ, not as a requirement to file again for every purchase whose information has already been transmitted.

Prepare a short chronology for the discussion with your specialist. When did your purchase take place? Which entry did you see, and as of what date? What do you believe should change specifically because of this purchase? Were there questions about the entry before the transaction? Separating events helps avoid describing a longstanding discrepancy as a new acquisition or, conversely, calling an ordinary change of party the correction of a typing error.

For example, if the seller appears in an old document and you recently purchased the property, first establish the current information and whether details of the purchase were transmitted. An unfamiliar party or an unclear share, however, is reason to pause and examine the basis for the entry. Do not select the most convenient branch of the assistant just to complete the form quickly. Ask how your document relates to the current information and which issue actually needs to be considered.

5. Do not confuse the filing deadline with processing time

The FAQ gives a two-month period for submitting a cadastral declaration, counted from the day following the relevant event, act or transaction; the applicable starting date depends on the case. This is a filing deadline where that obligation exists, not a promise to update the entry within two months. Clarify the basis of the obligation, any exception and the timetable for your own situation without waiting for an arbitrarily selected day.

It is best to ask about deadlines while checking transmission: “What obligation remains for us, from which date is the applicable period counted, and what action is needed now?” Do not settle for a vague “Look again in a couple of months” if it does not answer the question of a possible filing. Conversely, do not infer that processing is overdue solely from how long it has been since you received the keys.

If you have already received a notice, keep it separate from ordinary correspondence and show it to your specialist promptly. Establish exactly what is required of you and what instructions the document contains. This article does not provide an appeals calendar or a universal rule for extending deadlines. An intermediary's promise to call back should not be treated as confirmation that the matter raised by the notice has been resolved.

6. Prepare a substantive request, not an unexplained archive

First prepare a short account: which purchase took place, which property is involved, what was observed in the information, what is known about its transmission and what answer is needed. Then select documents supporting each part. This is working preparation, not an exhaustive official list of attachments. Check the precise contents and method of submission against the selected procedure and your status as applicant or representative.

Avoid wording such as “Replace the seller with me everywhere”. With several buyers, different rights or shares, this request conceals important details. Do not reconstruct shares from family arrangements, transfer amounts or who uses the apartment. Ask the specialist to compare the proposed change with the documents. If an additional basis is needed to understand it, discovering this before submission is better than attaching a contradictory explanation.

In the covering explanation, clearly distinguish what you are asking to have checked from what you regard as established. For example: “The purchase document is attached; the currency of the cadastral entry shown needs clarification; information about the comunicación has been requested from the office.” This note does not predetermine the authority's response. It lets the recipient see the gap without treating your assumption as a proven fact.

7. If a case already exists, establish its status

The Catastro assistant distinguishes an information request about an expediente from a change to property information; access to case information depends on involvement in the procedure or affected rights. Before making a new request, it is therefore useful to establish whether a case relating to your task exists and what confirms your connection to it. Ask for a number given orally to be matched to the property and the subject of the request.

If confirmation is found, do not merely ask whether it is “being handled”; clarify what is expected next: review of the submitted package, further material or an explanation of the decision made. Do not invent a status from the absence of a response. Ask the responsible party to identify the document on which their explanation is based. Also note who checks incoming messages and to whom they forward requests when the buyer is outside Spain.

Keep evidence of submission with the contents of the package submitted. Without it, it can later be difficult to tell whether all the necessary information was sent or only a general question. If you find an error in your own request, do not start several new filings at random. Clarify how to supplement or explain the existing case correctly while preserving the link to the previous request.

8. Compare the result received with the original task

After a response, return to the question that prompted the check. What is now known: has transmission been confirmed, has further information been requested, has a decision been made, or is updated information available? These outcomes are not interchangeable. Do not mark the whole matter “done” when only an intermediate stage has been confirmed. Record the remaining action so that another participant can continue without reconstructing all the correspondence.

If new information has been received, check the property concerned, the parties named and the aspects of the right that were actually the subject of the request. Compare them with the basis for the change, not your initial guess. Do not merge an error in a name and a question about a share into a single result of “the name has appeared”. If a difference is unclear, request an explanation before considering the task complete.

Do not automatically extend this result to other documents. An update to cadastral information should not be used as standalone confirmation of registration of a right, absence of encumbrances, correctness of a tax calculation or changes to service contracts. Each of these questions needs its own result. If one matters to the owner's next decision, refer it separately to the relevant specialist.

9. A final plan for the buyer

The working sequence is: establish where the previous name comes from; link the information to the purchased property; clarify whether a comunicación was transmitted; determine which event or discrepancy is being considered; check the applicable obligation and deadline; choose a confirmed route; retain the submitted package; and check the substantive result. This is a way to prepare a decision, not an instruction to choose a legal procedure yourself on the basis of a single sign.

A useful outcome of the first check may well be intermediate: you know which document is missing, whom you have asked for it and why you are not submitting a duplicate before the answer arrives. But uncertainty should not become indefinite waiting. Agree the next contact and the person responsible, taking separately established deadlines into account. If participants' explanations differ, pass the contradiction and documents to a specialist rather than choosing the most reassuring version.

For an apartment or house owner on the Costa Blanca, the value of this approach is not an attractive new line on a screen. It is understanding which change was needed after a specific purchase, which action accompanied it and what remained outside the check. The cadastral matter is then not lost among handover of keys, household contracts and other post-sale tasks, but neither does it replace the full range of legal checks on the property.

Official guidance for checking the titular after a purchase

Both official sources were read on 30 October 2026. Their short summary is not a check of any specific case. The chronology, questions to participants and approach to checking the outcome are Laverna editorial recommendations; the individual package and route require clarification.

Catastro FAQ: the administrative cadastre, titular, comunicación and the declaration filing deadline—an official source for post-sale checks.

Catastro-Ciudadano assistant: a new event, changes to titularidad and information about an expediente—official guidance on choosing an enquiry after a purchase.