The lush, mountainous Fila Costeña region of Costa Rica, a vital corridor for biodiversity in the southern Pacific, is now under the scrutiny of the country’s top financial watchdog. Costa Rica’s Comptroller General of the Republic (CGR) has accepted a formal complaint concerning construction permits issued by the Osa Municipality, raising concerns about the sustainability of real estate development in this ecologically sensitive area.
Oversight Investigation Launched in Fila Costeña
The investigation stems from a complaint filed by the Community Alliance Commission (CAC), associated with the Paso de la Danta Biological Corridor. The CAC, backed by the Frente Amplio party, alleges that the Osa Municipality approved construction projects without sufficient environmental safeguards. This has triggered a formal review by the CGR’s oversight unit, signaling a serious examination of development practices in the region. The CGR confirmed that it would include the issue in its audit planning in a letter dated December 17.
Understanding the Fila Costeña’s Importance
The Fila Costeña, also known as the Brunqueña Range, is a crucial geographic feature, stretching from the Savegre River to the Térraba River along the Pacific coastline. Spanning roughly 82,000 hectares, it forms a critical part of the Paso de la Danta Biological Corridor. This corridor acts as a bridge, linking coastal habitats with inland rainforests, and is vital for the movement and survival of countless species.
Why is Fila Costeña Significant?
- Biodiversity Hotspot: The area is home to a remarkable variety of wildlife, contributing significantly to Costa Rica’s reputation as a biodiversity leader.
- Water Source: The mountains serve as a vital watershed, providing freshwater to numerous communities and supporting local ecosystems.
- Ecological Connectivity: The corridor allows species to migrate and adapt to changing environmental conditions, ensuring the long-term health of the region’s ecosystems.
The Impact of Real Estate Development
Since the early 2000s, real estate development in the Fila Costeña has accelerated, leading to concerns about environmental degradation. This development, often driven by tourism and foreign investment, has resulted in:
- Deforestation: Clearing forests for construction leads to habitat loss and fragmentation, impacting wildlife populations.
- Water Resource Strain: Increased demand for water from new developments can deplete natural springs and aquifers.
- Increased Sediment Runoff: Construction activities can increase erosion, leading to sediment pollution in rivers and coastal waters, damaging marine ecosystems.
Expert Perspectives on the Issue
Biologist Jorge Lobo, a retired professor from the University of Costa Rica (UCR), has been studying the Fila Costeña for years. He attributes much of the environmental damage to tourism-driven real estate, with homes often built for foreign buyers on land sold by local residents. Lobo notes that this trend has intensified since 2005, expanding to higher elevations and impacting the Maritime Terrestrial Zone (ZMT), the area closest to the beach which is subject to special regulations.
Consequences of Unplanned Development
Lobo’s research, using aerial photos and surveys, highlights the far-reaching consequences of uncontrolled development:
- Biodiversity Loss: Fragmentation of forests disrupts habitats and reduces biodiversity both on land and in the ocean.
- Increased Erosion: Construction on steep slopes increases the risk of erosion and landslides, particularly during heavy rains.
- Reduced Water Availability: Changes to the landscape disrupt water infiltration into aquifers, reducing water supplies for both nature and human communities.
Reviewing Permitting Processes and Environmental Oversight
The CGR’s review will focus on whether construction permits were issued in compliance with environmental regulations and land use plans, including assessments conducted by the National Environmental Technical Secretariat (SETENA). A previous CGR report revealed that approximately 90% of projects are approved by SETENA without on-site inspections, raising concerns about potential oversight gaps and conflicts of interest. It’s worth noting that SETENA has faced criticism in the past for lacking the resources to adequately monitor projects and enforce environmental regulations.
Data Gaps and the Importance of Water Resources
The complaint also highlights the lack of comprehensive data on critical resources, including the water capacity of springs in the Fila Costeña, the current state of forest health, and the extent of protected areas. The region is a vital water source, feeding areas like Dominical, Palmar Norte and Sur, Uvita, Ojochal, and Bahía Ballena. At least 60 water uses are managed by 18 community water and sewer groups (ASADAS). These springs not only sustain local communities but also support the region’s growing tourism industry.
Calls for Action and Community Involvement
Environmental groups are urging immediate action, including a moratorium on new construction permits, an updated local zoning plan, a special protection status for the Fila Costeña, and increased public dialogue. This call to action gained momentum at the 2025 Ocean Festival, where attendees advocated for greater accountability from the Osa Municipality. The communities and experts underscore the urgent need to protect this region for the sake of water security and ecological integrity in the southern Pacific.
The findings of the CGR’s review will be shared with the complainants upon completion. In the meantime, the collective effort to balance development with conservation continues in this critical region of Costa Rica. With the country welcoming over 2.3 million tourists in 2023 alone, the push for sustainable development remains a critical balancing act for Costa Rica. The commitment towards environmental protection and sustainable tourism continues to be at the forefront of national and local priorities.
Interested in learning more about Costa Rica’s commitment to sustainable tourism and environmental conservation? Explore our other articles and resources to discover how you can experience the beauty of Costa Rica responsibly.
