Co-Ownership Rights: Protecting Inherited Property From Unauthorized Mortgages

In a 1999 decision, the Supreme Court clarified the limits of a co-owner's right to encumber inherited property. The case of Nufable v. Nufable (G.R. No. 126950) confirms that a co-owner cannot mortgage the entire inherited property without the consent of the other co-heirs. This ruling protects co-owners from losing their shares through the unauthorized acts of another.

The Facts of the Case

Edras Nufable died in 1965, leaving a parcel of land to his four children: Angel Custodio, Generosa, Vilfor, and Marcelo. The heirs agreed to keep the property undivided for community ownership, as stated in the decedent's will. However, in March 1966, Angel Custodio and his spouse mortgaged the entire property to the Development Bank of the Philippines (DBP), without the knowledge or consent of the other heirs.

When Angel defaulted, DBP foreclosed on the property. Nelson Nufable, Angel's son, later purchased the property from DBP. The other heirs filed a complaint to annul the transactions and recover their shares, arguing that Angel had no right to mortgage the entire property.

The Issue

The central question was whether a co-owner could validly mortgage the entire co-owned property, and whether the subsequent foreclosure and sale to a third party could defeat the rights of the other co-owners.

The Ruling

The Supreme Court ruled in favor of the co-heirs, holding that Angel Custodio Nufable had no right to mortgage the entire property. His right was limited to his ¼ pro indiviso share only.

Rights of Co-Owners Under Article 493

The Court applied Article 493 of the Civil Code, which states that a co-owner has full ownership of his part and may alienate, assign, or mortgage it. However, a co-owner cannot alienate the shares of the other co-owners. This prohibition rests on the elementary principle that a person cannot transfer a right he does not possess.

Successional Rights Transmit at Death

The Court also cited Article 777 of the Civil Code, which provides that rights to succession are transmitted from the moment of death. Since Edras died in 1965, the other heirs had already acquired their successional rights before the mortgage was executed in 1966. The timing of the probate proceedings did not affect these rights.

Implied Trust Over the Property

When DBP consolidated ownership and later sold the property to Nelson Nufable, the bank merely held the ¾ portion in trust for the rightful co-owners. Under Articles 1451 and 1456 of the Civil Code, implied trusts arise when legal title is placed in the name of another, or when property is acquired through mistake or fraud. The buyer stepped into the shoes of DBP and acquired only what DBP validly held—the ¼ share.

Registration Does Not Confer Ownership

The Court emphasized that registration of property is not a means of acquiring ownership. The fact that DBP consolidated title in its name did not terminate the existing co-ownership or defeat the rights of the other heirs.

Practical Takeaways

• A co-owner's right to mortgage is limited to his own pro indiviso share. Any mortgage covering the entire co-owned property is void as to the shares of the other co-owners.
• Consent matters. A mortgage of inherited property is not binding against co-heirs who did not consent to it and never benefited from it.
• Successional rights vest immediately upon death. Heirs acquire their rights at the moment of the decedent's death, regardless of when probate proceedings are completed.
• Buyers beware. A purchaser of foreclosed property acquires only the rights that the mortgagor validly held. If the mortgagor had only a fractional share, the buyer cannot claim more.
• Registration is not ownership. Having the title consolidated in one's name does not defeat the true owner's rights over the property.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.