G.R. No. 132518; March 28, 2000
Gavina Maglucot-Aw, et al., petitioners, vs. Leopoldo Maglucot, et al., respondents.

FACTS

The petitioners filed a complaint for recovery of possession and damages over Lot No. 1639-D, claiming exclusive ownership. The lot was originally part of Lot No. 1639, co-owned under OCT No. 6775. In 1952, co-owner Tomas Maglucot (respondents’ predecessor) filed a petition for subdivision. The then Court of First Instance issued an order directing the subdivision of the lot into six designated portions, with Lot 1639-D assigned to Roberto Maglucot (petitioners’ predecessor). The petitioners allege this constituted a valid partition.
The respondents, who are successors of Tomas Maglucot, occupied portions of Lot 1639-D, built houses, and paid rentals to the heirs of Roberto Maglucot until 1992, when they stopped, claiming co-ownership. The Regional Trial Court ruled in favor of the petitioners, finding that the 1952 order and subsequent acts, including the respondents’ payment of rent and their tax declarations stating their houses were built “on the land of Roberto Maglucot,” established a completed partition. The Court of Appeals reversed, holding that the prescribed procedure for judicial partition under Rule 69 was not followed, as there was no showing the subdivision plan was approved by the court or that a decree was registered.

ISSUE

The core issue is whether a valid partition of Lot No. 1639 was effected in 1952, thereby vesting exclusive ownership of Lot No. 1639-D in the petitioners.

RULING

The Supreme Court reversed the Court of Appeals and reinstated the RTC decision, ruling that a valid partition indeed occurred. The legal logic rests on the doctrine of estoppel and the substantive validity of the partition, notwithstanding procedural irregularities. The Court emphasized that partition is ultimately a matter of substance, not form. The 1952 court order expressly directed the subdivision and allocated specific lots. More critically, the respondents’ predecessors-in-interest, particularly Tomas Maglucot, who initiated the petition, actively participated and acquiesced to this allocation for decades.
The respondents, by their own acts, are estopped from denying the partition. Their long-term payment of rent to the petitioners’ predecessors was a clear recognition of the latter’s exclusive ownership. Their tax declarations for their houses, which explicitly stated the lots were owned by Roberto Maglucot, constitute solemn admissions against their interest. Estoppel precludes them from asserting co-ownership after having benefited from the partitioned arrangement. The Court held that the failure to secure formal court approval of the sketch plan or register a decree does not nullify a partition that has been physically implemented and mutually recognized by the parties for over forty years. The partition was consummated by the parties’ conduct, rendering Lot No. 1639-D the exclusive property of Roberto Maglucot’s heirs, the petitioners.