The LLDA was organized by virtue of Republic Act No. 4850 as a quasi-government agency with regulatory and proprietary functions. Through Presidential Decree 813 in 1975, and Executive Order 927 in 1983, its powers and functions were further strengthened to include environmental protection and jurisdiction over the lake basin’s surface water. In 1993, through Executive Order 149, the administrative supervision over LLDA was transferred from the Office of the President to the Department of Environment and Natural Resources (DENR).


The Laguna Lake Development Authority was created by Republic Act No. 4850 (as amended by Presidential Decree 813), entitled: An Act Creating the Laguna Lake Development Authority, Prescribing Its Powers, Functions and Duties, Providing Funds Thereof, and for Other Purposes.

Chapter I, Section 1:

“It is hereby declared to be the national policy to promote, and accelerate the development and balanced growth of the Laguna Lake area and the surrounding provinces, cities and towns hereinafter referred to as the region, within the context of the national and regional plans and policies for social and economic development and to carry out the development of the Laguna Lake region with due regard and adequate provisions for environmental management and control, preservation of the quality of human life and ecological systems, and the prevention of undue ecological disturbances, deterioration and pollution.”


By 2040, the Laguna de Bay Basin is an ecologically balanced resource that fosters vibrant economic development and sustains the needs of the present and future generations through the participation of empowered and responsible stakeholders.


To manage, develop and transform the Laguna de Bay Region into a vibrant economic zone through conservation of lake basin resources and good governance with the participation of empowered and responsible stakeholders.


Love of the Environment
“We, together with the participation of the empowered and responsible stakeholders, are foremost advocates of environmental protection and sustainable development in this day and age of climate change.”

“We adhere to the highest standards of civil service and professional meritocracy.”

“We believe in empirically-driven and science-based environmental governance and management.”

“We believe in change management and the value of innovation and creativity.”


As the only lake basin Authority in the country, member of the International Living Lakes Network and one of the founding members of Network of Asian River Basin Organizations (NARBO), we commit to:

Lead the sustainable development in the Laguna de Bay Region through effective and strict enforcement of water resources management laws;

Lead and continually improve our service delivery systems based on a certified quality management system for the satisfaction and trust of our stakeholders;

Develop and implement empirically-driven and science-based processes and decisions;

Adhere to legal requirements and other policies that serve to maintain the highest standards of the civil service.

“Ibalik ang Diwa ng Lawa”


The Laguna Lake Development Authority envisions a Laguna Lake Region with a balanced ecology, maintained through a science-based approach in monitoring, management and maintenance of the ecosystem. It aims to make the Laguna Lake Region a model of environmental governance in Asia and the focal area of sustainable development for the region and the whole country.


1. Information

  • State-of-the-art Model Laboratory
  • Information Technology
    • Using technology to implement more eco-friendly paperless transactions; Information Systems Strategic Plans (ISSP)
    • Text LLDA, guide response system
    • Telemetering – Automated telemetering system, located in Looc, Cardona, generates real-time lake water level and rainfall data, accessible through the Advanced Science and Technology Institute of the Department of and Technology (ASTI-DOST) website.

2. Interventions

  • Regulation/Enforcement of Laguna de Bay Institutional Strengthening and Community Participation (LISCOP) Project
    • Identifying Areas for Reforestation – planting different species of trees and plants in identified areas; on-going consultations with communities and various stakeholders on the preprogrammed reforestation projectLake Fisheries Conservation Program – conducts lake-seeding activities in various locations around the Lake

3. Institutional Partnerships / Institution – Building

  • Public-Private Partnerships: World Bank, Asian Development Bank, United Nations Development Programme, Department of Science and Technology, Department of Transportation and Communications, Local Government Units, Bureau of Fisheries and Aquatic Resources, Department of Environment and Natural Resources, Department of Public Works and Highways, Department of Interior and Local Government, Department of Tourism, Department of Trade and Industry and other partners and stakeholders
    • Memorandum of Agreement (MOA) with the Quezon City government and other Local Government Units on collaboration on regulatory programs
  • River Protection Convergence Program with DPWH
  • Calauan Learning Resource CenterWater and Ecology
  • Summits, conferences and seminars
  • Construction of the first green building of the government and climate-smart headquarters in the National Ecology Center

4. Involvement

  • Community Impact Surveys
    • Conducts lake primary productivity (LPP) measurements regularly in 3 selected stations. For assessing the quantity of natural food supply in the lake and predicting potential fish yields
  • Water Quality Management
    • LLDA Decision Support System (DSS): Bathymetric Surveys, Streamflow Measurement, Total Pollution Loading Study, Remote Sensing and GIS
    • Forest, Watershed, River Basin monitoring related to the River Rehabilitation Program with thirty six (36) stations located in the rivers of Marikina, Bagumbayan, Mangangati, Tunasan, San Pedro, Biñan, Sta. Rosa, Cabuyao, San Cristobal, San Juan, Los Baños, Bay, Pila, Sta. Cruz, Pagsanjan, Pangil, Siniloan, Sta. Maria, Jala-jala, Pililla, Tanay, Baras, Taytay Barkadahan and Morong, and also in Sapang Baho and the Buli Creek
    • Strengthening of the 120 Fisheries and Aquatic Resource Management Councils (FARMCs) and River Councils


Taking sustainable development as the centrepiece of its development efforts, LLDA sets its direction from a regulatory agency to a market client-driven development agency.


To catalyze Integrated Water Resource Management in the Laguna de Bay Region, showcasing the symbiosis of man and nature for sustainability, with focus on preserving ecological integrity and promoting economic growth with equitable access to resources.


LLDA Logo OfficialCenter image is the simplified map of the Laguna de Bay.

The abbreviated name of the agency is placed on top to make it more legible and recognizable, being the premier institution that manages the Laguna de Bay region.

While the green circular border signifies a holistic approach or integrated management of the basin being undertaken by the the agency and the multifarious stakeholders in rehabilitating and giving back the life of the lake and its watershed.