May 21, 2026

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By Summer Rylander

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According to the Government of Canada, Canadians spend approximately 90% of their time indoors, and that number can climb even higher during winter. Yet human physiology evolved outdoors under dynamic daylight, fluctuating temperatures, layered soundscapes, and spatial environments signalling safety or threat. Biophilic design aims to close the gap between our biological comforts and the urban surroundings in which many of us exist, whilst distanced from nature on a daily basis. While much of Canada’s (and the wider world’s) green building discourse has historically centred on carbon reduction, energy efficiency, and materials performance, there is growing recognition that human health metrics must sit alongside emissions targets.

 

Biologist and naturalist Edward O. Wilson brought the term “biophilia” to the masses in 1984 through his book of the same title, defining biophilia as an innate human affinity for life and living systems. Since then, psychology and building science have translated Wilson’s hypothesis into measurable architectural shifts. Biophilic design isn’t about big windows and filling a room with plants. It’s the strategic integration of natural materials, patterns, lighting conditions, and organic shapes into a built space. 

 

Beyond its psychological benefits, biophilic design also has implications for sustainable building practices. Strategies such as maximizing daylight, incorporating natural ventilation, and using locally sourced natural materials can reduce energy demand whilst reconnecting occupants with environmental systems. In this way, biophilic design not only supports human wellbeing but also encourages architecture that works with, rather than against, the natural world – a principle increasingly central to climate-conscious design.

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Evolutionary spatial preference

 

True biophilic design speaks to our evolutionary behaviours. In 1975, geographer Jay Appleton coined the prospect-refuge theory, arguing that humans prefer environments offering both prospect (the ability to see into the distance) and refuge (protection from behind or overhead). The survival of our savannah-wandering ancestors depended on their ability to spot opportunity and danger alike, ideally whilst remaining partially concealed.

 

This dual requirement remains embedded in modern comfort responses. We love a good window seat or a high-rise with a view, yet we gravitate toward unoccupied corners as we scan our colleagues during a busy networking event. We feel calmer in partially enclosed nooks than in fully exposed spaces – as anyone whose workplace dismantled cubicles in favour of an open-plan office can surely attest. 

 

Empirical studies in environmental psychology support this theory. Spaces that balance prospect and refuge tend to lower sympathetic nervous system activation through an increased perception of safety. Biophilic architecture incorporates this spatial layering through varied ceiling heights, sheltered seating zones, framed vistas, and transitional threshold spaces that effectively replicate the spatial cues under which human cognition evolved.

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Neurobiology, attention, and stress

 

One scientific framework underpinning the benefits of biophilic design is Attention Restoration Therapy (ART). Developed by environmental psychologists Rachel Kaplan and Stephen Kaplan, ART proposes that natural environments restore depleted cognitive resources by engaging what they refer to as “soft fascination” stimuli. The likes of cloud formations, flowing water, or fluttering leaves can hold attention gently without demanding a concentrated effort. Controlled studies consistently show improved working memory and focus after exposure to natural environments compared to dense, urban ones. 

 

Complementing ART is Stress Reduction Therapy (SRT), a concept advanced by psychologist and healthcare design researcher Roger Ulrich. His 1984 hospital study showed that patients recovering from surgery who had views of trees required fewer pain medications and were discharged sooner than patients facing a wall. Subsequent research has demonstrated reductions in blood pressure, cortisol, and heart rate variability markers when individuals are exposed to natural scenes.​​

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Narkhede, Dr-Parag. (2021). APPLICATION OF BIOPHILIC DESIGN IN ARCHITECTURAL ILLUSION. Webology. 18. 7369.

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Common misconceptions

 

Despite increasing awareness, biophilic design is still often misunderstood or oversimplified. Clarifying what it isn’t helps define what it really represents.

 

• It’s not about greenery. Vegetation is aesthetically pleasing and can contribute to wellbeing, but biophilic design extends far beyond plants. The 14 Patterns of Biophilic Design framework, developed by sustainability consulting firm Terrapin Bright Green, outlines evidence-based principles including the aforementioned prospect and refuge theory, material connection with nature, complexity and order, as well as dynamic light. These concepts often do not require plants at all. 

 

• Natural material doesn’t automatically make a space biophilic. If the incorporation of wood or stone guaranteed biological benefit, most of us could probably claim to live in a biophilic home. Research suggests that visible natural materials help keep us calm, but the context, proportion, and integration of these materials matter. Token use without spatial coherence or daylight strategy has limited discernable impact. 

 

• Biophilic design isn’t a wellness trend. Biophilic design is the application of neuroscience, chronobiology, psychology, and ecological science to the spaces where humans spend most of their lives. When architecture aligns with evolutionary expectations, the built environment shifts from a neutral container to an active participant in human health.

 

Institutional momentum

 

Organizations such as Green Building Canada play an important role in translating environmental science into building standards and policy advocacy. Indoor environmental quality (IEQ), daylight optimization, thermal comfort, and occupant wellbeing – all pillars of biophilic design – are increasingly embedded within national sustainability frameworks. 

 

The Canada Green Buildings Strategy is one example of this forward momentum towards psychologically conscious architecture, citing the construction and management of buildings as “critical to the health and vitality of the nation.” The federal initiative aims to transform Canada’s building sector into a net-zero, climate-resilient system by prioritizing energy efficiency, low-carbon materials, and healthier indoor environments. By encouraging upgrades to ventilation systems and daylight access across both new construction and existing buildings, the strategy highlights how environmental performance and occupant wellbeing can be addressed through the same design decisions. 

 

As research continues to map the relationship between environment and physiology, biophilic design emerges less as an architectural preference and more as an evidence-based response to human need. The spaces we inhabit shape our stress levels, cognition, sleep, and sense of safety in ways both subtle and measurable. Designing with nature in mind isn’t nostalgia for the outdoors, it’s an acknowledgement that our built spaces are often outpacing our biology. 

 

References

1. “Air Quality Health Index (AQHI),” Government of Canada, n.d. https://www.canada.ca/en/services/environment/weather/airquality/air-pollution-quality-canada-index.html (accessed Feb. 12, 2026).

2. “Biophilia,” E.O Wilson Foundation, n.d. https://eowilsonfoundation.org/glossary/biophilia/ (accessed Feb. 12, 2026).

3. “Quantifying urban environments: Aesthetic preference through the lens of prospect-refuge theory,” ScienceDirect, 2024 https://www.sciencedirect.com/science/article/abs/pii/S0272494424001178 (accessed Feb. 13, 2026)

4. “Indoor exposure and health impacts: A review,” Journal of Toxicology and Environmental Health, Part B, 2016. https://www.tandfonline.com/doi/full/10.1080/10937404.2016.1196155 (accessed Feb 13, 2026)

5. “ Stress Reduction Theory,” Roger S. Ulrich, 2023. https://www.researchgate.net/profile/Roger-Ulrich-2/publication/377281012_Ulrich_RS_2023_Stress_reduction_theory/links/659e9458c77ed940476dab17/Ulrich-RS-2023-Stress-reduction-theory.pdf (accessed Feb. 16, 2026). 

6. “Fractal patterns and stress reduction in built environments,” National Library of Medicine (PMC), 2021. https://pmc.ncbi.nlm.nih.gov/articles/PMC8125471/ (accessed Feb. 16, 2026.)

7. “Green Building Canada”, Green Building Canada, n.d. https://greenbuildingcanada.ca/ (accessed Feb. 18, 2026)

8. “Indoor Environmental Quality (IEQ),” Whole Building Design Guide, National Institute of Building Sciences, n.d. https://www.wbdg.org/do/sustainable/ieq (accessed Feb. 18, 2026) 

9. “Canada Green Buildings Strategy: Transforming Canada’s Buildings Sector for a Net-Zero, Resilient Future,” Natural Resources Canada, n.d. https://natural-resources.canada.ca/energy-efficiency/building-energy-efficiency/canada-green-buildings-strategy-transforming-canada-s-buildings-sector-net-zero-resilient-future (accessed Feb. 18, 2026)

10. “14 Patterns of Biophilic Design,” Terrapin Bright Green, 2014. https://www.terrapinbrightgreen.com/report/14-patterns/ (accessed Feb. 18, 2026)

11. Fell, D. “Wood in the human environment: Restorative properties of wood in the built indoor environment,” University of British Columbia, 2010. https://open.library.ubc.ca/soa/cIRcle/collections/ubctheses/24/items/1.0071305 (accessed Feb. 18, 2026)