Title
Degayo vs. Magbanua-Dinglasan
Case
G.R. No. 173148
Decision Date
Apr 6, 2015
A property dispute arose over land affected by a river's course change, with conflicting claims of accretion versus abandoned riverbed. The Supreme Court ruled the disputed area as an abandoned riverbed, applying res judicata to bar the petitioner's claims.

Case Summary (G.R. No. L-25176)

Petitioner

Elsa Degayo, heir to Lot No. 861 (36,864 sqm), alleges that 52,525 sqm of newly exposed land along the former riverbed accreted to her title by inheritance and continuous possession since 1954.

Respondents

Cecilia Magbanua-Dinglasan, Johnny Dinglasan, Asuncion Magbanua-Porras, Mariano Magbanua, Pascualito Magbanua and Amado Magbanua Jr., registered owners of Lot No. 7328 (153,028 sqm), claim the disputed area is abandoned riverbed belonging proportionately to them under Civil Code Article 461.

Key Dates

• 1984 – Respondents filed Civil Case No. 16047 against Degayo’s tenants for recovery of abandoned riverbed.
• 1996 – RTC Branch 27 rules for respondents; decision becomes final and executory in 1999.
• 1996 – Degayo’s separate Civil Case No. 18328 filed in RTC Branch 22; decision in her favor.
• 2005–2006 – Court of Appeals reverses RTC Branch 22, holds res judicata, deems area abandoned riverbed.
• April 6, 2015 – Supreme Court resolves Rule 45 petition, applying the 1987 Constitution.

Applicable Law

• 1987 Constitution of the Philippines (decision after 1990)
• Civil Code Article 461 (abandoned riverbeds)
• Rules of Court, Rule 39 Sec. 47 (res judicata – claim preclusion and issue preclusion)
• Rules of Court, Rule 45 (petition for review on certiorari)

Factual Background

The Jalaud River’s gradual southward shift dried its original bed adjacent to Lot 861 and encroached on Lot 7328. Degayo’s tenants cultivated the exposed area, believing it to be accretion to Lot 861. Respondents contended it was abandoned riverbed compensating lost land in Lot 7328.

Procedural History

Respondents sued the tenants in Civil Case No. 16047; Degayo’s motion to intervene was denied, and she never challenged that interlocutory order. Separately, Degayo filed Civil Case No. 18328 for declaration of accretion. RTC Branch 27 in No. 16047 ruled for respondents, final in 1999. RTC Branch 22 in No. 18328 ruled for Degayo; respondents appealed to the Court of Appeals.

Court of Appeals Ruling

The CA reversed RTC Branch 22, declaring the disputed area an abandoned riverbed under Article 461. It held that the final judgment in Civil Case No. 16047 was conclusive under the doctrine of res judicata and that Degayo’s accretion claim had been fully litigated therein.

Issues on Review

  1. Whether the disputed land is accretion to Lot 861 or abandoned riverbed.
  2. Whether CA properly took judicial notice of Civil Case No. 16047.
  3. Whether Degayo, not a party in No. 16047, is bound by its judgment under res judicata.

Supreme Court’s Analysis on Res Judicata

Res judicata bars relitigation of issues once judicially determined in a final judgment by a competent court. Under Rule 39 Sec. 47, res judicata encompasses:
• Claim preclusion (bar by prior judgment)
• Issue preclusion (conclusiveness of judgment)

Privity and Identity of Parties and Issues

Although Degayo was not formally impleaded in No. 16047, she testified on the same facts and asserted the same accretion claim through her tenants. The Court applied Torres v. Caluag, holding that a real liti

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