Your ex keeps the house: the use of the family home
Last updated 2026-09-01 · Reviewed by Jaime Piñeira Pardo, registered with the ICAM bar, no. 138826
The short answer
The right of use is neither ownership nor indefinite. Article 96 of the Código Civil grants it, absent agreement, to the couple's minor children and to the spouse in whose company they remain, until they all reach adulthood. Without children, it is granted for such period as is prudently set. A new partner moving in is raised under article 775 of the Ley de Enjuiciamiento Civil.
You both bought the flat, the mortgage is still in both names and you have paid it in full since the divorce. The judgment gave the right of use to your former wife and the two children, who are now nineteen and twenty three. For two years her new partner has been living there, contributing nothing. You pay the mortgage on a house another man lives in, you rent a room, and you have been told that until it is sold there is nothing you can do.
The case, in five lines
- What is brought
- A claim to modify measures under article 775 of the Ley de Enjuiciamiento Civil seeking the extinction or time limitation of the right of use granted under article 96 of the Código Civil.
- Before which court
- The sección de familia del Tribunal de Instancia (the family section of the first-instance court) that ordered the final measures, which is the one article 775 designates for their modification.
- Deadline
- There is no lapse period for seeking modification, but the right of use ends only from the moment it is declared to have ended. Every month that passes since the ground justifying the use disappeared, with the children now adults or a third party installed, is a month you do not get back.
- Who can bring it
- Either spouse, under article 775, and the public prosecutor where there are minor children or children with disabilities whose support measures are entrusted to their parents.
- Financial risk
- If the substantial change is not proven, the right of use remains intact and costs may be awarded against you. The mortgage continues to be paid while the case lasts, and a request to end the use brought while minor children still live there is usually dismissed under article 96 itself.
The right of use goes to the minor children, not to your ex
The first paragraph of article 96 of the Código Civil states who the use belongs to: absent agreement between the spouses approved by the court, the use of the family home and of its ordinary household objects belongs to the couple's minor children and to the spouse in whose company they remain, until they all reach adulthood. The spouse receives it for accompanying the children, not in their own right.
That final phrase marks the time limit precisely and explains why so many rights of use drag on improperly: the reference point is not the youngest child living in the house, but that all the couple's minor children have reached adulthood. When that moment arrives, the title supporting the use disappears, and continuing in the home is no longer covered by the first paragraph of article 96.
The same paragraph provides two qualifications to check before claiming. If among the minor children there is one with a disability making it appropriate for the use to continue after they reach adulthood, the court will set the duration of that right. And where some children remain with one spouse and the rest with the other, the court will decide what is appropriate.
Once they are adults, what remains is maintenance
Article 96 expressly resolves what happens to an adult child still studying and not earning a living: once the use provided for in the first paragraph is extinguished, the housing needs of those without financial independence are met under Title VI of that Book, on maintenance between relatives. Housing stops being a right of use and becomes a component of the maintenance obligation.
The difference is enormous in practice. The right of use occupies the whole property and blocks any dealing with it; the maintenance obligation is met with a proportionate sum and can be shared between both parents. Extinguishing the use therefore does not put the adult child on the street: it changes the instrument that covers their need, and it gives the co owner back the chance to recover or realise their share.
Without children, the use is temporary by definition
The second paragraph of article 96 governs a childless marriage in very different terms: where there are no children, the use of such property may be granted to the non owning spouse for such period as is prudently set, provided that, in the circumstances, this is advisable and that spouse's interest is the one most in need of protection. Three cumulative conditions and a period the decision must specify.
That paragraph is discretionary, not automatic: the law says the use may be granted, so there is no default attribution in favour of the non owner. And by requiring that the interest be the one most in need of protection, it forces a comparison of the two real financial situations rather than presuming anyone's. When that inequality disappears, the reason supporting the attribution disappears with it.
A new partner living in the house changes the picture
When a third party moves in permanently to the home whose use was granted, the situation is no longer the one the court assessed when giving judgment. The Tribunal Supremo addressed that cohabitation in its judgment 641/2018 of 20 November, and since then a new partner moving into the family home has been relied on as a supervening circumstance to seek the extinction or limitation of the right of use.
The route is article 775 of the Ley de Enjuiciamiento Civil, which allows the spouses to ask the court that ordered the final measures to modify them provided the circumstances taken into account when approving or ordering them have substantially changed. A third party's settled cohabitation in the property is a verifiable fact arising after the judgment, which is exactly what that article requires.
The work is therefore evidential, not rhetorical. It must be shown that the cohabitation is settled and not a visit: registration at the address, bills domiciled there, correspondence, publications and continuous presence. A claim built on suspicion is dismissed, and the right of use is then reinforced for years against any later attempt.
The right of use blocks a sale and appears in the Registry
The third paragraph of article 96 explains why the property cannot be put on the market without first resolving this question: to dispose of all or part of the home and household goods whose use has been granted under the previous paragraphs, the consent of both spouses is required or, failing that, judicial authorisation. The restriction does not depend on who appears as owner.
The same paragraph adds two significant registry points. This restriction on the power to dispose of the family home is to be recorded in the Registro de la Propiedad, so it is enforceable against third parties and not an internal matter between former spouses. And an erroneous or false statement by the disposing party about the use of the home does not prejudice a good faith acquirer, which shifts responsibility to whoever lied when selling.
Hence the correct order of work. First the right of use is attacked through modification of measures and, once extinguished or time limited, the property is free to be sold or the co ownership dissolved. Doing it the other way round, looking for a buyer with the use alive and registered, is the surest way to lose time and to have to explain later why the deal never closed.
How we run the case, step by step
- 1
Reading the judgment and identifying the basis of the use
We check whether the use was granted under the first paragraph of article 96, because there were minor children, or under the second, without children and for a prudent period. Which ground has ceased to apply depends on that reading.
- 2
Checking the children's ages and situation
We verify that all the couple's children have reached adulthood and whether any is in a situation of disability of the kind article 96 contemplates for extending the use with a period set by the court.
- 3
Documenting the third party's settled cohabitation
We gather evidence that the new partner lives there permanently: municipal registration, utilities and bills domiciled at the address, correspondence, continuous presence and any public expression of that cohabitation.
- 4
Claim to modify the measures
It is filed before the court that ordered the final measures, proving the substantial change of circumstances article 775 requires and seeking extinction of the use or, alternatively, a reasonable period to vacate.
- 5
Hearing, judgment and an orderly exit
The judgment extinguishes or limits the use and sets the period to vacate. Only then is the property free of the restriction on disposal that article 96 requires to be recorded in the Registro de la Propiedad.
- 6
Winding up the co ownership or selling the property
Once the use is extinguished, the property can be sold or divided without the other spouse's consent or judicial authorisation, and the allocation of the mortgage instalments paid up to then is adjusted.
The evidence that decides the case
- The complete divorce judgment, with the ruling on the use and the reasoning explaining why it was granted.
- The children's full birth certificates, which establish beyond any argument the exact date on which every one of them reached adulthood.
- The municipal registration certificate for the home, showing who is registered as living there and since when.
- Utility bills and correspondence addressed to the third party at that address, which turn the cohabitation into a documented fact.
- The mortgage amortisation schedule and the receipts showing exactly who paid each instalment from the date of the judgment onwards.
- The land registry extract for the home, showing ownership and whether the article 96 restriction was actually recorded.
What closes the door
- Confusing the right of use with ownership and stopping mortgage payments. Non payment does not end the use, damages your position with the bank and the court, and adds a financial problem to the one you already had.
- Seeking extinction while the couple's minor children still live in the home. The first paragraph of article 96 keeps the use until they all reach adulthood, and the claim is dismissed with costs.
- Alleging the third party's cohabitation without documentary evidence. Without registration, bills or correspondence, the assertion remains a suspicion and reinforces the use against any later attempt.
- Looking for a buyer before resolving the use. Article 96 requires both spouses' consent or judicial authorisation to dispose of the property, and the restriction appears in the Registro de la Propiedad.
- Selling while concealing the granted use. An erroneous or false statement by the disposing party about the use of the home does not prejudice a good faith acquirer, so the problem returns in full against the seller.
The law that applies
- Art. 96.1 CC. Absent an agreement approved by the court, it grants the use of the family home and its ordinary household objects to the couple's minor children and to the spouse in whose company they remain, until they all reach adulthood, allows it to be extended for a period set by the court where there are children with disabilities, and, once the use is extinguished, refers the housing needs of those without financial independence to maintenance between relatives. BOE-A-1889-4763
- Art. 96.2 CC. Where there are no children, it allows the use to be granted to the non owning spouse for such period as is prudently set, provided the circumstances make it advisable and that spouse's interest is the one most in need of protection. It is a power of the court, not an automatic attribution, and it requires a period to be fixed. BOE-A-1889-4763
- Art. 96.3 CC. Requires both spouses' consent or, failing that, judicial authorisation to dispose of a home whose use has been granted, requires that restriction to be recorded in the Registro de la Propiedad, and makes clear that an erroneous or false statement by the disposing party about the use does not prejudice a good faith acquirer. BOE-A-1889-4763
- Art. 775 LEC. Allows the spouses, and the public prosecutor where there are minor children or children with disabilities whose support measures are entrusted to their parents, to ask the court that ordered the final measures to modify them provided the circumstances taken into account when approving or ordering them have substantially changed, and allows provisional modification to be sought in the claim or the defence. BOE-A-2000-323
Each article checked against the consolidated text published in the BOE (the Spanish official gazette).
Frequently asked questions
My children are adults now. Does the use end automatically?
It does not end by itself: it must be applied for. The first paragraph of article 96 grants the use until all the couple's minor children reach adulthood, so the ground disappears, but the measure remains in the judgment until another decision changes it. The route is modification of measures under article 775, and its effects run from the moment it is declared.
Her new partner lives in my house. Can I ask for the use to end?
It can be raised. The Tribunal Supremo addressed a third party's cohabitation in the family home in its judgment 641/2018 of 20 November, and that settled arrival is relied on as a supervening circumstance through article 775 of the Ley de Enjuiciamiento Civil. What is decisive is proving the cohabitation is settled, with registration, bills domiciled there and continuous presence, not an occasional fact.
Can I sell the flat if the use is granted to my ex?
Not on your own. The third paragraph of article 96 requires, in order to dispose of all or part of a home whose use has been granted, the consent of both spouses or, failing that, judicial authorisation, and requires that restriction to be recorded in the Registro de la Propiedad. Moreover, a false statement by the disposing party about the use does not prejudice a good faith acquirer.
My adult son is still studying. Does that keep the use alive?
Not on that basis. Article 96 resolves the situation expressly: once the use provided for in the first paragraph is extinguished, the housing needs of those without financial independence are met under Title VI of that Book, on maintenance between relatives. The need is covered by a proportionate payment, not by occupying the whole property.
We have no children and she kept the house. Is that forever?
No. The second paragraph of article 96 provides that, where there are no children, the use may be granted to the non owning spouse for such period as is prudently set, provided the circumstances make it advisable and that spouse's interest is the one most in need of protection. It is temporary by definition, and when that financial inequality disappears modification can be sought under article 775.
This guide explains how the action works in general. It does not replace the study of your own case: deadlines depend on when things happened and on what you have done since.