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.
Educational architecture remains an exploratory ground for unbuilt exploration, offering insight into how learning environments can evolve alongside changing social, ecological, and pedagogical values. In this Unbuilt edition, submitted by the ArchDaily community, the selected projects bring together a range of proposals that examine schools, libraries, nurseries, and academic centers as spatial frameworks for care, knowledge, and collective growth. Rather than treating education as a fixed program housed within singular buildings, these projects approach learning spaces as adaptive environments shaped by landscape, climate, and human interaction.
Across varied geographies, from Mediterranean hillsides and Central European courtyards to tropical cities and distributed campus models, the proposals explore diverse architectural responses to contemporary education. They range from child-scaled kindergartens organized around trees and cloisters to libraries conceived as civic landscapes, biodiversity-centered academic buildings, and schools imagined as walkable urban systems.
Biodiversity, defined by the World Wide Fund for Nature (WWF) as the different kinds of life found in an area, is in a state of crisis all across the world, with declines in the numbers of organisms and many species declared as at risk of extinction. All types are affected, from plants and fungi to large mammals, and there is a clear link to human activity being the cause. Although farming methods and climate change due to greenhouse gases play a major role, cities and buildings can play a small but important role in countering this decline.
In many parts of the world, remoteness is not only defined by distance. It may describe a mountain settlement far from infrastructure or an urban and suburban neighborhood on the margins of visibility and opportunity. Across these diverse contexts, the library has been one of the most vital typologies—a space where architecture embodies the modes of accessibility, inclusivity, and community care.
Aerial view of Beta Building in Honduras. Image Courtesy of Taller ACÁ
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.
For decades, technological evolution was driven by the exponential growth in computer processing power—a trend famously predicted by Moore’s Law. From rudimentary mechanical devices to highly sophisticated microprocessors, this trajectory fueled the miniaturization and popularization of personal computers, laptops, and smartphones. Now, with the advent of quantum computing, a new leap is on the horizon. Unlike classical bits, which represent only one value at a time—either 0 or 1—qubits can simultaneously represent a combination of both states. This means that while a traditional computer tests one possibility at a time, a quantum computer can explore many at once, dramatically accelerating the resolution of complex problems. Molecular simulations, logistical optimizations, and advances in cryptography are just a few of the areas transformed by this new frontier.
In the construction industry—a sector historically resistant to abrupt changes—the evolution of materials also has its breakthrough moments. From carved stone to reinforced concrete, from raw timber to high-performance composites, each new material has expanded the structural, aesthetic, and functional boundaries of architecture. In recent years, however, researchers have been testing a new generation of materials that transcend the traditional idea of passivity. These are intelligent materials, capable of sensing, reacting to, and even interacting with their environment and users, challenging the very concept of inert matter.
Sustainability has been a central theme in architectural discussions for years, encompassing not only the profession’s role in combating climate change and transitioning to low-carbon economies but also preserving cultural heritage and celebrating vernacular traditions. In 2024, a wave of projects and studies stood out for their innovative use of natural materials, particularly in the Global South. These initiatives skillfully blend creativity and technology with renewable resources, demonstrating how architecture can deliver high-quality spaces that align with contemporary demands for sustainability and environmental responsibility.
Honduran architect Angela Stassano is contributing to Central America's architectural landscape with her applied research regarding bioclimatic designs. Based in San Pedro Sula, Honduras, her projects draw from local heritage techniques to address the needs of hot, humid tropical environments. Stassano has developed her expertise through over 30 years of hands-on research, culminating in a bioclimatic architecture guide that outlines her methods for construction in this region. One of her most notable projects, Las Casitas, is a residential complex that embodies this research. The project includes multiple energy-efficient tropical houses that harness the local climate, resulting in low energy and operational costs.
Architects Belinda Tato and Jose Luis Vallejo of Ecosistema Urbano have designed a plug-in public space designed to address the effects of climate change in ill-equipped urban environments. Titled Polinature, the installation has been funded by the Salata Institute for Climate and Sustainability at Harvard, and is now installed in the backyard of the Harvard Center for Green Buildings and Cities. The pavilion, featuring native plans set into a scaffolding, with an inflatable bioclimatic canopy, aims to demonstrate how small-scale interventions can create compound positive effects for the local micro-climate and biodiversity.
How is it possible to open educational spaces to the outdoors, and what are the appropriate conditions for their development? What bioclimatic strategies can be implemented to contribute to environmental comfort and the cultural preservation of communities? By conceiving outdoor learning spaces and blurring the boundaries between indoors and outdoors, the educational infrastructures projected by the Semillas association in the Peruvian jungle invite reflection on the opportunities for gathering, meeting, and community participation among students, families, and local residents. Linked to the site's uses and customs, this conception of space represents a way of living where the implementation of bioclimatic strategies, along with the use of local materials and construction techniques, come together to create an architecture connected to its environment and history.
Every year, Earth Day, celebrated on April 22, presents us with an opportunity to contemplate the conditions of our planet and our impact upon it. Generating around 37% of global carbon emissions, the construction industry has an important, often detrimental, role to play, thus placing an increasingly urgent responsibility on architects and builders to devise strategies for reducing this number. Still, the built environment represents the habitat for most of humanity, and so it has the potential to protect and shelter people from the risks posed by the changing climate. Read on to discover a collection of articles delving into the strategies available at urban and architectural scales for mitigating the effects of climate change and minimizing the industry’s impact upon it.
When we think of the word "tropic," the image that typically comes to mind is an exotic space, characterized by perpetual warmth and humidity, with frequent and heavy rainfall nurturing lush vegetation. Throughout history, this tropical climate has been romanticized as a paradise and criticized for potentially fostering weakness due to its perceived clemency.
Thankfully, those judgments and associations have been relegated to the past, paving the way for theoretical and practical projects that outline the advantages and disadvantages of living in a tropical climate. These projects acknowledge the various strategies to enhance human adaptability within these distinctive climatic conditions.
Greenhouses are elegant and ingenious structures that incorporate simplicity in design while creating light-filled spaces that shape indoor climates. With walls and roofs composed mainly of transparent or translucent materials, these structures harness solar energy to create a controlled environment. As advances in materials and environmental management progress, they can seamlessly be integrated into architectural designs, offering innovative solutions that blend functionality with aesthetics. Beyond their original role in plant cultivation, they have evolved into projects that emphasize sustainability, education, and conservation. At their core, they offer experiences of exploration and discovery, showcasing the intricate relationship between sunlight, plants, and indoor environments.
Weaving is not only a technical craft but also a way to design material experiences. Engaging in the process of weaving allows us to structure, communicate, reflect on, and connect with our designs. By experimenting with different fabric structures, we gain insight into how materials behave under tension and compression. This understanding helps us push the boundaries of textiles and their limitations, resulting in designs that stretch and test the properties of the materials.
In architecture, the construction mechanism of weaving centers the shelter to the building process. In this sense, shelter becomes a direct manifestation of material production. Additionally, weaving offers numerous environmental and social benefits by creating shelters that actively engage with materials, tools, technologies, and creative potentials, thereby supporting placemaking.
As the temperature drops in the Northern Hemisphere, cold outdoor spaces are overcome with frost, ice, and snow, and we find ourselves rushing from one heated indoor environment to the next, less willing or less able to stop and appreciate the natural world around us.
Apart from dragging a spruce or fir tree inside and dressing it up in yuletide costume, we tend to leave the real natural world to its own seasonal devices until it reemerges in Spring. However, by inviting the positive effects of plant life into our homes, we can improve both our mental health and the air we breathe by filling them with peace and joy all year round, not just at Christmas.
How is it possible to reduce the energy consumption of our homes? What design, material, and/or technological strategies can be developed to achieve interior comfort while also addressing the climate crisis? While achieving energy efficiency depends, among other factors, on the state of the homes, there are various strategies related to the implementation of renewable energies, air conditioning technologies, and more that can be applied, taking into account government policies, laws, regulations, and standards specific to each region.
Copenhagen-based philanthropic association re:arc institute has announced the cohort of nonprofit organizations, people, and practices they will support throughout 2024. The organization founded in 2022 works at the intersection of climate action and architectural philanthropy, aiming to support the development of solutions that address the root causes and consequences of climate change.
The architectural field often adheres to conventional industry models, either client-based or competition-based, which can perpetuate problematic or extractive motivations. The re:arc institute hopes to rethink the architecture discipline’s potential for addressing social and environmental concerns by providing a blueprint for pioneering philanthropic projects. To do so, they provide funding to nonprofits, individuals, and community-led projects exploring innovative approaches that prioritize planetary well-being. Their focus is on hyper-local, grassroots initiatives that address climate crises with a strong emphasis on the unique needs of specific places and communities.
Design of the ventilation system at the Sarah hospital / João Filgueiras Lima (Lelé). Image via Concrete
Architecture is a transdisciplinary field. It incorporates principles and knowledge from several other disciplines to ensure a built structure functions as intended. This fundamentally involves considering the context in which a building is placed, including its immediate surroundings, such as neighboring structures, local biodiversity, and climate. Essentially, architecture only exists within a particular context. When we expand this context to a broader scale, it becomes what we commonly refer to as the "environment."
