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This November, REDBAAL will mark its first decade of activity, a milestone celebrated alongside four editions of the Oscar Niemeyer Award for Latin American Architecture (ON Award). Over these years, more than 350 projects have been submitted, all of which share the distinction of having been previously recognized at the most prestigious architectural biennials across Latin America.

What does it mean for the Costa Rican Architecture Biennial to have reached sixteen editions? Clearly, it represents a significant accumulation of exhibitions, conferences, and diverse programs that reflect the concerns and shifts in the country's architectural agenda over the past three decades.

'A Project of Trends: 30 Years of Architecture Biennials in Costa Rica' is the exhibition at the Museum of Contemporary Art and Design (MADC) that reviews this trajectory in detail, under the precise curation of Paz Monge Cortés and José Daniel Picado-García.

In temperate and cold climates, architecture typically begins with a defensive gesture. The building envelope is a sealed boundary designed to resist the exterior environment through insulation, vapor barriers, and mechanical control. In cold countries like Canada, where winter temperatures can plunge well below freezing, airtightness is not a luxury. In this context, buildings must resist the exterior environment entirely to maintain interior comfort. However, in Central America, a region spanning from Belize to Panama, architectural logic shifts from exclusion to negotiation. In this region, the envelope is not a wall of defense but a specialized filter.

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Costa Rica is a small country in Central America, internationally renowned for its tourism, biodiversity, and tropical climate. Given this context, tropical design strategies for hotel design are often more studied, but residential cabin projects can represent a more surgical approach to understanding the landscape. Often situated in remote forest or jungle locations, these cabins, apart from the common tropical design strategies, have to prioritize long-term durability and low-maintenance costs, particularly in regions where access for repairs is logistically difficult. This necessitates a design philosophy that favors both structural and climatic resilience.

Building in this context requires precise design responses to two primary environmental stressors: extreme precipitation and high humidity. Costa Rica's tropical climate, while varying by altitude, generally delivers an average monthly rainfall exceeding 150 mm in many regions. This constant water load can create a "wet-bulb" effect, where stagnant, saturated air accelerates interior material degradation and creates physiological discomfort for the inhabitants. To design effectively under these conditions, contemporary cabin architecture employs a three-fold strategy of minimal site invasion, the creation of thermal gradients, and passive climate mitigation.

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In the coastal and jungle regions of Costa Rica, high humidity and intense solar radiation dictate an architectural strategy centered on permeability rather than enclosure. Unlike the airtight envelopes required in cold climates to retain heat, Costa Rican architecture uses the building envelope as a climatic filter to maximize air exchange. The primary mechanism for managing these thermal gradients seems to be the oversized roof overhang. By extending the roof plane significantly beyond the floor plate, architects create a permanent buffer of deep shade that reduces solar gain and lowers the ambient temperature before air enters the structure. This strategy, combined with permeable or non-existent walls, allows for constant airflow. This is a critical technical requirement for humidity control and the prevention of material degradation through mold and rot.

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Across South America, environmental comfort is understood not as an interior condition, but as one shaped through space. In regions marked by heat, humidity, intense sunlight, and seasonal variation, architecture has long relied on spatial decisions to moderate climate and support daily life. Comfort emerges from how interiors are opened, shaded, ventilated, and inhabited over time.

Rather than isolating interior spaces from their surroundings, many contemporary projects across the region cultivate comfort through depth, porosity, and intermediate zones. Light is filtered rather than maximized, air is guided through aligned openings and voids, and thresholds become active spaces of use rather than residual edges. These strategies do not seek uniform environmental control, but produce interiors that remain temperate, adaptable, and closely attuned to changing climatic conditions. In this context, environmental comfort becomes inseparable from spatial experience.

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Videos

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This past year marked a period of introspection for architecture. As 2025 unfolded, the discipline, confronted with evolving environmental and social realities, entered a broader turning point in how it understands its role and how users engage with it. Throughout the year, exhibitions shifted focus away from buildings as isolated objects toward a broader understanding of relationships between ecology, equity, everyday life, and collective imaginaries. Across institutions and cities, they operated less as showcases and more as discursive platforms: places where architecture was not only presented, but also imagined, questioned, and collectively redefined.

While exhibitions have long functioned as sites of discourse, politics, and community, this role became more explicit in 2025. As Carlo Ratti noted in an ArchDaily interview during the pre-opening of the Venice Architecture Biennale 2025, exhibitions today can "hybridize the way that people come together," an ambition that echoed across cities and institutions as exhibitions evolved into spaces for debate, experimentation, and collective reflection. Exhibitions are places where architects and designers meet, where conversations unfold openly with the public, and where ideas emerge through spontaneous exchanges among passersby. Exhibitions became spaces where architectural discourse extended beyond professional circles, opening conversations to broader publics through everyday encounters, shared experiences, and informal exchanges.

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The Latin American Architecture Biennale 2025 (BAL 2025) opens this September 23 in Pamplona with a program of lectures, exhibitions, and meetings centered on the region's emerging architecture.

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Understanding the temperature gradient in a building is essential in cold or temperate climates, where airtight enclosures and continuous insulation are used to prevent heat loss. However, this approach is not suitable for tropical areas like Central America, where the climate is marked by a consistent alternation between wet and dry seasons rather than four distinct ones. Factors such as proximity to the sea, elevation, and local topography influence microclimates across short distances, but high humidity remains a common challenge. Sealed, airtight walls with no ventilation can quickly become breeding grounds for mold, making the thermal strategies of temperate climates problematic. In response, local designers have developed alternative approaches that embrace, rather than resist, the outdoor environment, allowing airflow and evaporation to manage interior comfort.

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Annually, ArchDaily's curatorial team undertakes a rigorous selection process to identify exemplary projects in Latin American residential architecture. The goal is to share these works of architecture with our audience and highlight and promote good practices within contemporary architecture. This meticulous effort focuses on identifying projects that stand out for their design and their positive impact on the environment, innovative use of materials and techniques, and ability to address current needs.

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The Latin American Architecture Biennial (BAL), which has gained significant relevance in the contemporary architectural scene, will celebrate its ninth edition next year. This meeting gathers emerging Latin American architecture studios in Pamplona, Spain, to share their work, fostering dialogue and debate about the current state of the discipline, as well as acting as a bridge between the Latin American continent and the Spanish context. In this edition, Costa Rica will be the guest country, accompanied by Honduras, El Salvador, Panama, Guatemala, and Nicaragua. As part of this invitation, there will be an exhibition and specific seminars dedicated to analyzing the situation of architecture in these countries.

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The pillar has adorned many of the greatest monumental examples of Western architecture since antiquity, from the Doric columns of the Parthenon to the Corinthian capitals of the Pantheon portico. In the West, the legacies of these classical forms have permutated over the centuries and into modern times: the Doric columns of the Lincoln Memorial, the Ionic columns of the British museum portico, and the Villa Savoye’s pilotis are just a few examples of the classical column’s continued transformation and use over the last few centuries. Today, the round pillar continues to be used in modern design, both functionally and aesthetically. Below, we look into these elements in more detail, including their materials, construction, structural qualities, and several contemporary examples of their use.