Mortgaging Co-Owned Property: Limits on a Co-Owner's Authority

In the Philippine legal landscape, the rights of co-owners over a shared property are not absolute. While each co-owner has the right to use and enjoy the property, certain acts—particularly those that would encumber or alienate the entire property—require the consent of all co-owners. This principle was recently affirmed by the Supreme Court, which clarified the boundaries of a co-owner's authority to mortgage co-owned property.

The Case of Campos v. Ortega

The case of Campos v. Ortega (G.R. No. 171286, June 2, 2014) arose from a dispute over a residential structure in Mandaluyong City. The petitioner, Dolores Campos, had been a long-time lessee of a structure owned by Dominga Boloy. After Boloy's death, her successors-in-interest sold the property to respondents Dominador Ortega, Sr. and James Silos.

Campos claimed that she had a vested right to purchase the property as a qualified beneficiary under the National Housing Authority's Zonal Improvement Program. The Supreme Court, however, denied her petition, holding that her status as a censused occupant did not vest her with a legal right to the property—only a mere expectancy.

The Limits of a Co-Owner's Authority

While the main issue in Campos concerned vested rights and the indefeasibility of Torrens titles, the case also touched on a critical principle in co-ownership: a co-owner's authority over the shared property is limited.

Under Philippine law, specifically Article 493 of the Civil Code, each co-owner has full ownership of their undivided share and may alienate, assign, or mortgage it. However, this right extends only to their proportionate share—not to the entire property. Any act that would affect the whole property, such as mortgaging it in its entirety, requires the consent of all co-owners.

This means that if a co-owner mortgages the entire co-owned property without the others' consent, the mortgage is generally considered void as to the shares of the non-consenting co-owners. The mortgage can only bind the share of the co-owner who executed it.

Why This Matters

This limitation protects co-owners from having their interests compromised by the unilateral actions of another co-owner. Without this safeguard, one co-owner could encumber the entire property, potentially leading to its foreclosure and loss, even if the other co-owners never agreed to such an arrangement.

Practical Takeaways

• A co-owner may mortgage or sell only their undivided share in a co-owned property without the consent of the other co-owners.
• Any mortgage or encumbrance covering the entire co-owned property requires the consent of all co-owners; otherwise, it is void as to the non-consenting co-owners' shares.
• Before accepting a mortgage on a property, lenders should verify that all co-owners have consented to the encumbrance.
• A co-owner who discovers that another co-owner has encumbered the entire property without consent may challenge the validity of the mortgage as to their share.
• The remedy of reconveyance may be available to a co-owner who has been deprived of their rights over the property, subject to the applicable prescriptive periods.

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