How biological systems inspire sustainable design

Bio-inspired design, or biomimicry, is increasingly recognized as a creative approach and a rigorous scientific methodology for addressing sustainability challenges in the built environment. According to Aamer et al. (2020), biomimicry allows designers to move beyond superficial imitation of nature and toward a deeper integration of biological principles into building performance. This involves analyzing how organisms adapt to their environment, manage energy, water, and material flows, and how their internal behaviours can inspire systemic architectural solutions.

A key concept is the closed-loop material and energy flow observed in ecosystems. In a forest, waste from one organism becomes food for another; nothing is discarded. Urban designers are beginning to adopt this model through circular urban systems, where waste, water, and energy are recycled. This systems-level thinking reflects the logic of ecosystems and supports more resilient urban infrastructure (Kennedy et al., 2015). Even the structure of organisms influences design. For instance, the form of the boxfish has inspired aerodynamic cars and building facades due to its optimized structure for reducing drag (Bar-Cohen, 2012). These examples illustrate that nature provides both functional models and design principles that can directly inform how we shape future cities.

One of the most critical shifts advocated in recent research is from mimicking the form of nature to understanding and replicating its function and behaviour. Aamer et al. (2020) emphasize the importance of this transition by highlighting the gap in past architectural practices, which often used natural aesthetics without achieving functional sustainability. Through a problem-based biomimetic approach, they propose a methodology that focuses on building behaviour, including energy efficiency, thermal comfort, material performance, and environmental responsiveness. This process starts with identifying architectural challenges and seeking solutions from biological role models that have evolved to overcome similar conditions.

The methodology described in their study includes simulating biological systems through experimental abstraction and translating these into architectural prototypes. It spans three levels of biomimicry: organism level (specific form or function), behaviour level (interaction with environment), and ecosystem level (systemic flows and relationships). The behaviour level is particularly emphasized, as it enables buildings to respond adaptively, similar to how living organisms regulate heat, moisture, or light.