Tierra y Mar is a tropical residence set within the dry-forest canopy of Mal Pais, Costa Rica. Designed by Alvarez Arquitectos, the house uses elevated terraces, deep roof planes, shaded glazing, and a restrained material palette to navigate steep terrain, Pacific views, and the demanding coastal climate.
Tierra y Mar – Main House Technical Information
- ArchitectsÁlvarez Arquitectos
- LocationMal País, Puntarenas, Costa Rica
- Project Year2026
- Photographs© depth.lens
The main architectural intention was to blur the boundary between interior and exterior.
– Jose Manuel Alvarez Cruz
Siting a Tropical Residence Within the Forest Canopy
Tierra y Mar occupies a steep, wooded ridge above the North Pacific coast in Mal Pais, where the practical question of how to build is inseparable from the preservation of the existing dry forest. Rather than grading a broad platform into the slope, the house is distributed across a sequence of elevated volumes and terraces. This approach retains a substantial presence of mature vegetation while positioning daily spaces at approximately the same level as surrounding palm crowns and forest canopy.
The aerial view reveals a fragmented rather than singular composition. Overlapping roof planes step with the terrain, while access routes, service areas, terraces, and planted surfaces form distinct fields around the primary living volume. A planted upper terrace, visible from above, extends this dispersed approach by treating the roofscape as part of the landscape rather than as a purely protective enclosure. The resulting footprint also anticipates the wider master plan: the house establishes its own view corridors while avoiding a form that would unnecessarily compromise future occupation of the site.
This elevated strategy gives the residence a particular sectional condition. From the lower slope, the glazed living level reads as a horizontal band held above a stone retaining base, while from within, the forest is encountered at eye level rather than as scenery below. The architecture does not dissolve into the vegetation, nor does it attempt to dominate it. Instead, it creates a controlled clearing within the canopy, where the horizon remains visible beyond a near field of foliage.
Roofscape, Structure, and Climatic Protection
The principal roof planes are broad, thin-edged, and subtly curved. Their wave-like profile introduces an oceanic reference without reducing the roof to a literal image of the sea. More consequentially, their extended cantilevers provide the depth of shade required by the large glazed openings below. In a climate marked by strong solar exposure and seasonal shifts between dry heat and intense rain, the roof is not an abstract formal gesture. It is the building’s primary climatic instrument.
Heavy timber columns establish the dominant vertical rhythm along the terraces and perimeter of the main volume. Slim black steel beams bridge between them, allowing the roof edges to remain visually light despite their projection. The repeated junction between warm timber and dark metal makes the structural logic legible, particularly along the pool terrace where columns mediate between the interior, covered outdoor rooms, and open deck. Board-formed concrete soffits alternate with timber-lined ceilings, distinguishing more enclosed zones from spaces that remain closely exposed to the climate.
Protection extends beyond the main roof. A timber pergola shades the narrow side passage between a white plaster service wall and the glazed facade, casting a changing pattern of light across stone paving and planted joints. Elsewhere, covered terraces extend the usable envelope of the house during periods of harsh sun or rain. These elements recall regional tropical construction practices in which overhangs, galleries, and permeable edge spaces reduce dependence on sealed, mechanically conditioned interiors.
Open Thresholds Between House, Terrace, and Landscape
Arrival is organized as a deliberate compression and release. A planted ramp and stair lead through a restricted entry opening in a white wall, beside a curved screen of vertical timber slats. This threshold initially limits the view, then frames a direct visual axis through the living space toward the Pacific. The sequence relies on contrast: dense planting, textured surfaces, and enclosed circulation give way to the long horizontal expanse of terrace, pool, canopy, and ocean.
Within the main living space, large sliding glass doors open toward the sea-facing deck, while opposite openings connect to a sheltered courtyard. When these systems are open, the house operates less as a closed room than as a cross-ventilated passage between two exterior conditions. The courtyard offers enclosure, planting, and filtered light; the terrace projects toward the distant horizon. A continuous timber ceiling strengthens this spatial continuity by carrying the interior plane outward beneath the roof overhang.
The dark green-black mosaic pool anchors this spatial arrangement. Its reflective surface avoids the visual separation created by bright blue water, instead reading as a dark horizontal plane that mirrors the soffit, sky, and surrounding vegetation. The infinity edge aligns water with the ocean beyond, while stone paving, a covered bar, and an outdoor cooking area turn the terrace into an inhabited extension of the great room. These are not secondary leisure elements attached to a completed house. They form part of its principal living sequence and define its seaward edge.
Material Continuity and Passive Tropical Living
The material palette is organized around locally available and climatically resilient components. Teak and melina from controlled plantations near the site are used for columns, screens, ceilings, and other tactile elements, while natural stone appears in paths, exterior floors, retaining surfaces, and service-zone cladding. Cement and concrete blocks were locally manufactured, reducing reliance on imported construction materials. This sourcing strategy does not produce a uniform surface language; rather, it allows each material to occupy conditions suited to its performance.
The architecture makes passive cooling explicit. A clerestory band above the principal sliding doors allows hot air to rise and escape while maintaining daylight beneath the roof. Cross-ventilation can move between the courtyard and ocean-facing terrace, assisted by large ceiling fans within the open living volume. Deep overhangs limit direct solar exposure on the glazing, existing trees provide additional shade, and pale-to-warm stone surfaces on exterior terraces reduce heat retention in circulation areas compared with darker, denser paving.
Inside, timber floors and ceilings establish continuity across living, dining, and terrace zones, while rough stone-clad columns and service elements introduce mass and thermal presence. White plaster walls sharpen the contrast with vegetation and shadowed timber, particularly along the entry and secondary circulation routes. The planted courtyard further complicates the interior-exterior boundary, bringing vegetation into the center of the plan rather than confining it to the perimeter. Together, these material transitions produce a contemporary tropical house grounded less in visual spectacle than in shade, airflow, surface temperature, and carefully calibrated exposure.
About Álvarez Arquitectos
Alvarez Arquitectos is a Costa Rica-based architecture practice led by Jose Manuel Alvarez Cruz. Its work engages the climate and materials of the Costa Rican Pacific coast, combining contemporary expression with regional building principles including deep roof overhangs, cross-ventilation, natural stone, and locally sourced plantation timber.
Credits and Additional Notes
- Other contributor – Photography: depth.lens
