Municipality of Biñan, Laguna, et al. vs. Holiday Hills Stock & Breeding Farm Corporation and Domino Farms, Inc.

A municipal ordinance that regulates and phases out large livestock farms located near residential areas is a valid exercise of police power under the general welfare clause of the Local Government Code, provided the regulated activity constitutes a nuisance per se—one that directly and immediately endangers public health or safety—and the means adopted are reasonably necessary and not unduly oppressive.

The Sangguniang Bayan of Biñan, Laguna, enacted Municipal Ordinance No. 06 (2004) to regulate the use of urban control zones for agriculture and to gradually phase out large piggery, fowl, and other livestock farms within the municipality. The ordinance provided a three-year period for existing large farms (e.g., those with more than ten swine or five hundred birds) to reduce their livestock to a manageable level, after which no new business permits would be issued. Respondents Holiday Hills Stock & Breeding Farm Corporation and Domino Farms, Inc., operators of large hog farms near residential subdivisions, received notice of the ordinance's implementation and subsequently filed a petition for certiorari, declaratory relief, and prohibition before the Regional Trial Court (RTC), assailing its validity.

• Nature of the Ordinance: On November 24, 2004, the Municipal Council of Biñan, Laguna, passed Municipal Ordinance No. 06, series of 2004, titled "Urban Control Zones Regulation and Gradual Phase Out of Large Livestock Farms in Biñan, Laguna." Its stated objective was to regulate urban control zones for agricultural use and gradually phase out large livestock farms. The Sangguniang Panlalawigan of Laguna approved it on April 6, 2005.
• Key Provisions: The ordinance exempted existing large livestock farms (defined as those with more than ten swine or more than five hundred birds) by granting them a maximum of three years from the ordinance's approval to gradually reduce their livestock to a "manageable level." After this period, no business or operational permits would be issued to such farms. No new large livestock farms were allowed to operate upon the ordinance's effectivity.
• Respondents' Challenge: Respondents Holiday Hills and Domino Farms, operators of large hog farms, received notice of the ordinance on August 25, 2005. On February 7, 2006, they filed a petition before the RTC, arguing that Sections 2, 3, and 6 of the ordinance were vague, whimsical, arbitrary, capricious, and unconstitutional, violating the due process clause.
• Petitioners' Defense: Petitioners (the Municipality and its officers) maintained the ordinance was a valid exercise of police power. They argued the hog farms, located near residential subdivisions, constituted a public nuisance endangering resident health and causing foul odors.
• Lower Court Rulings: The RTC dismissed the respondents' petition, upholding the ordinance as a valid exercise of police power and finding the farms to be a nuisance per se. The CA reversed the RTC, holding that while the ordinance was not vague and did not violate property rights, it violated substantive due process because the farms were a nuisance per accidens—not a nuisance per se—and thus could not be abated via ordinance without a judicial hearing.

• Police Power and Nuisance Per Se: Petitioners argued that the enactment of Municipal Ordinance No. 06 was a valid exercise of the local government's police power under the general welfare clause of the Local Government Code. They contended that the respondents' large hog farms, emitting foul odors and located near residential subdivisions, constituted a public nuisance per se that directly endangered the health and comfort of the community, justifying summary abatement through legislation.
• Deference to Local Legislative Judgment: Petitioners maintained that the Court of Appeals, in reversing the RTC, usurped the authority of the local legislative body (Sanggunian) and wrongfully substituted its own judgment for that of the local officials in determining what the interests of the locality's constituents required.

• Nuisance Per Accidens and Due Process: Respondents countered that their hog farms could, at best, be considered a nuisance per accidens—one whose existence depends on particular circumstances and requires a factual determination. They argued that petitioners failed to present evidence proving the farms were directly injurious to public health. Consequently, the ordinance, which effectively abated the farms without a judicial hearing, violated their right to substantive due process.
• Lack of Justifiable Condition: Respondents argued that the Sanggunian failed to demonstrate any justifiable condition or factual basis for the enactment of the ordinance, rendering it arbitrary and unconstitutional.

• Validity of the Ordinance Under Police Power: Whether the Court of Appeals erred in reversing the RTC and declaring Municipal Ordinance No. 06 invalid for violating substantive due process.
• Classification of the Nuisance: Whether the respondents' large hog farms constitute a nuisance per se that may be summarily abated by a municipal ordinance, or a nuisance per accidens requiring judicial intervention.

• Validity of the Ordinance Under Police Power: The petition was granted. The CA decision was reversed. Municipal Ordinance No. 06 was declared not unconstitutional. The ordinance is a valid exercise of the delegated police power of the local government unit under the general welfare clause (Section 16, Local Government Code). The two requisites for a valid exercise of police power were met: (1) the interests of the public generally require interference with private rights, and (2) the means adopted are reasonably necessary for the purpose and not unduly oppressive.
• Classification of the Nuisance: The respondents' large hog farms constitute a nuisance per se. The foul odor they emit immediately interferes with the safety and comfort of the residents of Biñan, presenting a direct menace to public health. As a nuisance per se, it may be summarily abated by the local government through legislation. The ordinance's phase-out approach is a reasonable regulatory measure, not an undue oppression, as it does not totally prohibit business but regulates it to a manageable level.

• Tests for a Valid Ordinance — For an ordinance to be valid, it must: (1) not contravene the Constitution or any statute; (2) not be unfair or oppressive; (3) not be partial or discriminatory; (4) not prohibit but may regulate trade; (5) be general and consistent with public policy; and (6) not be unreasonable. The Court applied this test, finding the ordinance constitutional and consistent with the Local Government Code's general welfare clause.
• Police Power of Local Government Units — Local government units exercise delegated police power through their legislative bodies (sanggunian) to promote the general welfare. The power is found in Section 16 (General Welfare Clause) of the Local Government Code, which includes promoting health, safety, and the comfort and convenience of inhabitants.
• Nuisance Per Se vs. Nuisance Per Accidens — A nuisance per se is one that affects the immediate safety of persons and property and may be summarily abated under the law of necessity (e.g., obstructions on public streets, inherently dangerous items). A nuisance per accidens depends on particular conditions and circumstances; its existence is a question of fact that cannot be abated without due judicial hearing. The Court classified the stench-emitting hog farms as a nuisance per se because the odor immediately interferes with public safety and comfort.

• "To constitute a nuisance per se, the obstruction must hinder the public use of streets, highways, or sidewalks, or the interference with the safety or property of a person must be immediate. In other words, the perceived danger that the act, omission, establishment, business, or condition of property poses must be of the type that presents an emergency." — This passage defines the stringent standard for classifying a nuisance as per se, emphasizing the requirement of immediate danger.
• "Municipal Ordinance No. 06 does not totally prohibit the conduct of business and even specifies the number of livestock and poultry that must not be exceeded by the business owners. To be sure, it is a form of regulating businesses, which is within the power of local governments under the general welfare clause of the Local Government Code." — This excerpt underscores the Court's view that the ordinance is a reasonable regulation, not a prohibition, thus satisfying the police power requirement that means be not unduly oppressive.

• City of Manila v. Laguio, Jr., 495 Phil. 289 (2005) — Cited as the controlling authority for the tests of a valid ordinance. The Court restated and applied the six substantive requirements for an ordinance's validity established in this case.
• The Iloilo Ice and Cold Storage Company v. The Municipal Council of Iloilo, et al., 24 Phil. 471 (1913) — Followed for the doctrine that municipal councils cannot make a factual determination that a thing is a nuisance unless it is a nuisance per se; the power to determine if a legitimate business is a nuisance per accidens belongs to the courts. The Court used this to distinguish between the two types of nuisances.
• Salao v. Santos, 67 Phil. 547 (1939) — Followed and applied to distinguish between a nuisance per se (which can be summarily abated) and a nuisance per accidens (which requires a judicial hearing). The Court cited this to support its conclusion that the hog farms were a nuisance per se.
• Cruz, et al. v. Pandacan Hiker's Club, Inc., 776 Phil. 336 (2016) — Cited for the classification of nuisances according to (1) the object affected (public/private) and (2) susceptibility to summary abatement (per se/per accidens). The Court used this framework to analyze the nature of the hog farms.

• Article III, Section 1, 1987 Constitution — The due process clause. The Court held that the ordinance did not violate substantive due process because it was a valid exercise of police power and the farms were a nuisance per se.
• Section 16, Local Government Code (Republic Act No. 7160) — The General Welfare Clause. This provision was the primary legal basis for the delegated police power exercised by the Municipality of Biñan in enacting the ordinance to promote health, safety, comfort, and convenience.

• Associate Justice Mario V. Lopez (Ponente)
• Associate Justice Henri Jean Paul B. Inting
• Associate Justice Samuel H. Gaerlan
• Associate Justice Japar B. Dimaampao