Modern glass facade of Greenhill School Valdes STEM Center with exterior sunshades and students walking in front of a large oak tree.

Greenhill School Project: Redefining the Learning Environment through Flexible and Sustainable Design

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Developing an Innovative and Sustainable Learning Environment

Greenhill School was founded in the 1950s and today accommodates approximately 1,400 students in a northern suburb of Dallas. The campus features a variety of buildings and expansive outdoor spaces, providing a comprehensive learning environment that encourages student interaction and communication.

Focus on Science and Innovation

The school has increasingly emphasized the development of specialized educational facilities in the fields of science, technology, engineering, and mathematics (STEM), aiming to enhance students’ skills in collaboration and problem-solving through innovative approaches. This focus aligns with best practices in modern design for educational environments.

Flexible and Sustainable Design

A high-performance, flexible environmental architecture approach has been adopted, allowing the buildings themselves to serve as educational tools, with a strong focus on sustainability principles. This approach reflects the growing trend in school design to integrate active learning with sustainable environments, helping to cultivate environmental awareness in students from an early age.

Close-up of the STEM center's glass and metal facade featuring a garage-style door for the robotics lab and exterior sun louvers.
High-performance glazing and external shading systems are key components of the building’s energy-efficient design. (Image © Nic Lehoux)
Students gathered in an outdoor courtyard between building wings, with a second-story walkway and saw-tooth rooflines visible.
Outdoor protected spaces and courtyards extend the learning environment beyond the classroom walls. (Image © Nic Lehoux)

Comprehensive Center for Science and Innovation

A spacious educational center has been designed to meet the needs of middle and high school students in the fields of science, technology, engineering, mathematics, and innovation. This center features a variety of classrooms, advanced laboratories for manufacturing and robotics, as well as dedicated spaces for hands-on experimentation and creativity.

Enhancing Interdisciplinary Collaborative Learning

These spaces have been thoughtfully integrated to encourage teamwork among students from different disciplines, enhancing critical thinking and problem-solving through innovative approaches. This approach highlights the importance of designing educational environments that support active learning and continuous student interaction, rather than focusing solely on traditional theoretical instruction.

Interior view of a double-height central common space with mass timber columns, skylights, and students collaborating at tables.
The double-height central hub fosters a collaborative community atmosphere, utilizing mass timber for a sustainable and warm aesthetic. (Image © Nic Lehoux)

Integrating Nature into Educational Design

The building represents an early model of using densely treated wood in the region, imparting a warm and natural feel to the learning environment. This use reflects a focus on creating educational spaces that promote comfort and cognitive engagement for students, with careful consideration of building materials.

Enhancing Indoor-Outdoor Connectivity

The design incorporates large glass areas that provide clear views connecting classrooms with protected outdoor spaces. This visual connection fosters a sense of openness and encourages interaction with the surrounding environment, supporting a holistic educational experience that combines hands-on learning with engagement with nature.

Students working with laptops on long tables inside a brightly lit STEM classroom with wood ceilings and glass partitions.
Flexible classroom layouts with integrated technology support hands-on learning and multi-disciplinary teamwork. (Image © Nic Lehoux)
View through a large glass window showing students sitting at tables in a central hall with a landscaped courtyard in the background.
Strategic visual connections throughout the building link students with nature and their peers in other departments. (Image © Nic Lehoux)

Modular Classroom Design

The classroom design follows a modular approach that allows flexibility for future use. This strategy includes the use of raised flooring to facilitate adjustments to electrical infrastructure and ventilation systems, enabling adaptation to technological changes and evolving educational needs.

Shared Spaces for Collaboration and Interaction

The building also features a spacious double-height common area, providing an open environment for collaboration, meetings, and social interaction among students, faculty, and the educational community. This approach emphasizes the importance of designing learning spaces that support interactive learning and enhance communication among all participants in the educational process.

Evening view of an internal courtyard at Greenhill School with illuminated glass walls, wooden benches, and young trees.
The rain garden courtyard serves as a living laboratory for teaching water cycles and sustainable resource management. (Image © Nic Lehoux)
Ground-level view of an outdoor courtyard with curved benches and a glass wall reflecting the interior mass timber structure.
Native plantings and rain gardens are integrated into the courtyard to support local pollinators and manage stormwater. (Image © Nic Lehoux)

Hands-On Learning for Sustainable Design

The center provides students with tangible opportunities to understand the principles of integrated sustainable design. This includes multiple practices such as the use of densely treated wood, natural lighting in interior spaces, rainwater harvesting, and energy-saving strategies. These elements offer students a practical learning experience that connects theory with application in a real educational environment.

Sustainability and Carbon Footprint Reduction

A densely treated wood structure was adopted from the early design stages to minimize the project’s carbon footprint. The modular approach to classroom and maker space design also contributes to long-term flexibility, allowing adaptations according to future developments in education and research in technology.

Integrating Nature and Environmental Interaction

The green roof and rain garden courtyard feature native plantings and pollinator support, with effective water management. A historic water tank has also been restored to become part of a water cycle learning experience, enhancing students’ awareness of sustainability and natural resource management.

Exterior night view of the Greenhill STEM center with warm interior lights and shadows of trees cast on the brick walls.
The combination of traditional brick and modern glass creates a harmonious identity rooted in the school’s history. (Image © Nic Lehoux)

Maximizing Natural Lighting and Preparing for Future Energy Needs

The building envelope and roof have been carefully designed to achieve autonomy in natural lighting within the buildings, reducing reliance on artificial lighting and enhancing comfort for students and faculty. The infrastructure has also been prepared for solar water heating systems and photovoltaic panels to facilitate future installation, reflecting the trend toward integrating renewable energy sources in educational environments.

Energy Efficiency and Cooling Strategies

The design utilizes thermal energy storage with ice tanks in the basement, an approach that helps reduce energy consumption during peak hours. Ice is produced during periods of low electricity demand and later used to cool the building during peak times, lowering operating costs and enhancing energy efficiency.

Campus Flexibility and Safety

A tornado shelter has been integrated into the basement, designed to operate for 48 hours, supporting the long-term resilience of the facility. This solution exemplifies how safety and emergency planning can be incorporated into educational building design while considering sustainability and flexibility for future use.

Exterior view of the brick building at Greenhill School during sunset, showing the modular classroom wings and parking area.
The building’s exterior utilizes traditional brick to harmonize with the historic campus while housing modern, flexible learning spaces. (Image © Nic Lehoux)

Drawing Inspiration from Traditional Campus Elements

The design is based on familiar elements in the educational environment, such as brick, heavy timber, and natural lighting, with a focus on connecting indoor and outdoor spaces. This approach contributes to creating a coherent and cohesive building, rooted in its site and reflecting the architectural identity of the educational institution.

Natural Light and Open Circulation Paths

An interior courtyard has been designed to allow natural light to reach the central common space, with open circulation paths that encourage smooth movement throughout the building. This design enhances the sense of openness and promotes interaction between students and faculty in a dynamic learning environment, demonstrating effective interior design strategies.

Connecting the Local Community to Learning and Research

The common space and adjacent areas provide opportunities to welcome the broader community of the educational institution and facilitate future engagement with scientific research, educational programs, and regional industrial partnerships. This configuration highlights the importance of integrating the educational environment with the local community and enriching the learning experience beyond traditional classrooms.


✦ ArchUp Editorial Insight

Greenhill School can be viewed as an example of integrating sustainability and flexibility in educational environments, where modular classrooms and indoor-outdoor connections provide opportunities to enhance interactive learning and student communication. However, certain aspects of the design may raise questions about practicality and wider applicability. For instance, the extensive use of treated wood and large glass surfaces may increase long-term maintenance costs and pose challenges related to thermal and acoustic insulation. Similarly, while shared spaces and expansive openings promote a sense of openness, managing them effectively at all times may require careful operational planning and continuous monitoring.

From a broader perspective, this experience can inform the design of other schools by studying how to balance sustainability, flexibility, and operational costs, taking local and environmental conditions into account. The project offers valuable insights into how natural lighting, open spaces, and modular design can be integrated into advanced educational environments, while noting that practical implementation requires careful study before direct transfer to any other architectural context. For further inspiration, see our architecture competitions and competition results.


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