Modern Industrial House With Ocean Views & Private Waterfall In Ostional, Guanacaste, Costa Rica

There are properties with ocean views in Guanacaste, and then there’s Casa Athena: where a private waterfall flows through the property, a stream runs beneath a custom-built deck, and the Pacific stretches out below you from nearly every room in the house. This is not a standard luxury listing.

Completed in 2020 and set on 8,940 m² (2.21 acres) inside the Black Beauty Community, a private gated community in Ostional, Casa Athena is a modern industrial estate with 614 m² (6,613 ft²) of covered living space, soaring ceilings, expansive glass walls, and a seamless connection between the built environment and the jungle that surrounds it. The architecture is bold, with exposed materials, clean lines, double-height volumes, but the setting is deeply natural: mature tropical landscaping, fruit trees, and a stream with a waterfall accessed by a landscaped path through the property.

The main level centers around an open-concept living and dining area that opens fully through sliding pocket doors onto a wide pool terrace. The kitchen is built for serious entertaining: premium appliances, a large island, walk-in pantry, and a fully equipped outdoor kitchen with a pizza oven, Argentinian grill, bar, and multiple cooking stations. The three-sided infinity pool with sun shelf and in-pool bar seating sits at the edge of the terrace, overlooking ocean, coastline, and jungle canopy.

Upstairs, the primary suite occupies its own level, with a private terrace, outdoor tub, lounge area, and panoramic Pacific views. A loft-style lounge connects to a rooftop deck with 360-degree views and integrated solar panels. The main level adds a second suite with ocean views and pool terrace access, plus an additional guest bedroom.

Below the pool level, a fully air-conditioned wellness floor includes a gym, cedar-lined sauna with hot stone system, a six-person jacuzzi overlooking the jungle, a lounge with kitchenette, and direct terrace access — designed as a private retreat within the retreat.

The infrastructure matches the architecture: a solar panel system with battery backup, whole-home water purification (UV, reverse osmosis, water softener), solar hot water with recirculation, smart lighting and climate controls throughout, automated irrigation, and a security camera system. This is a property built to operate independently and sustainably.

Casa Athena is located in Ostional, on Guanacaste’s Nicoya Peninsula: one of the world’s five certified Blue Zones. From the property, you’re 15 minutes from both Ostional’s beach and the renowned sea turtle nesting refuge, 15 minutes from San Juanillo’s white-sand cove, and 30 minutes from Playa Guiones in Nosara — the area’s hub for dining, wellness, yoga, and a well-established international community.
Nosara’s local airport is 30 minutes away, and Liberia International Airport, with direct flights from major U. S. and Canadian cities, is approximately 2 hours by car.
Three bedrooms. Three and a half bathrooms. A private waterfall. And one of the most complete luxury estates on the Guanacaste coast.