
Helena
Helena at the Studio of Marianne Mitchell
Helena van Vliet RA Dipl.-Ing. AIA
Helena is an Internationally Acclaimed Expert in Biophilic Design.
She is an award-winning Biophilic Architect, Biophilic Design Consultant, Scholar, Educator & Speaker on Health & Well-Being in the Built Environment.
Born and raised in Aachen, Germany, in a family of architects and builders, Helena made her way to the US at the age of 20 and eventually found her home in Pennsylvania. She holds a Master of Architecture from the University of Pennsylvania and a Bachelor of Science (Vordiplom) in Architecture from the RWTH Aachen, Germany. Helena is the mother of two precious young adults and a licensed architect in the U.S. as well as in Germany.
Deep Influence: Helena re-visting her birthplace, the medieval city of Aachen, Germany
A lifelong student of Nature’s restorative powers, Helena first took to the solace and community of a garden following her beloved younger brother’s death in childhood. For more than 30 years, she has devoted her professional life to the design of places that heal by reconnecting people with Nature, places that make people - and animals, plants, and pollinators - especially her favorite bumblebees - feel sheltered and at home.
In a parallel process of ongoing research in evolutionary biology, cognitive neuroscience, chronobiology, and biopsychology (to name but a few) Helena has deepened her understanding of the design ingredients essential for well-being places, the elements & patterns embedded in the places we love.
Helena considers Architecture a Health Care Profession and has made the creation of spaces that foster cognitive legibility, cognitive ease, and positive emotional engagement with place her primary area of exploration. She views human attachment to, and caring for, place as essential for sustainability, as well as for physiological well-being.
Helena is a Steering Committee Member for the international Biophilic Cities Network and facilitates workshops and team charrettes in Biophilic Design & Urbanism as well as for Living Building Challenge (LBC) accreditations.
As founder and president of BioPhilly, she and her team seek to promote the important link between human health and wild habitat biodiversity in urban Philadelphia.
Travel in the Americas, the Middle East, Asia, and Subsaharan Africa taught Helena much about climate-adaptive building. Extended stays with family in North Africa immersed her in adaptive living close to nature’s cycles, seasons, and weather in extreme heat environments.
Helena is a member of the AIA Academy for Health in Architecture. She teaches and lectures nationally and internationally at various universities including the Weitzman Executive Program in Design for Sustainability at the University of Pennsylvania; Drexel; Pratt; the Politecnico di Milano, Italy; the Bauhaus University, Germany; and Thomas Jefferson University, where she developed her acclaimed interdisciplinary seminar ‘Environments for Well-Being’.
Her steady focus is on Biophilic Design, Biophilic Urbanism, and the intersection between architecture, public health, and biodiversity.
As an active Planning Commissioner since 2002, Helena has advised the governing body in municipal planning, zoning, and land use regulation towards sustainable low-impact growth for the well-being of her local community.
Photo Credit Nina Dudas
“Knowing that you love the Earth changes you, activates you to defend and protect and celebrate. But when you feel that the Earth loves you in return, that feeling transforms the relationship from a one-way street into a sacred bond”
~Robin Wall Kimmerer

Home, sweet Garden
The Family
Bee & Butterfly Food
Visiting Sophia in Vancouver
Sophia and the Mosses...
In Germany at the lovely home of Kiki and Pierre
Sophia & Nicholas, Vancouver Islands, Canada
The Courtyard..
Nicholas & Helena, Northwaters Lake Temagami, Canada
Sophia communing with her beloved Moss..
Soph & Nick at the Cottage, Cape May Point
More Moss at the Courtyard Fountain ...
My favorite Naturalist: Sophia, Vancouver Island
At our favorite Village Hangout: the Kimberton Inn
Nick visiting Historic American Architecture...
More Bee Food..
A favorite Place: the Tree Perch Nick built for us
Sophia & Anifa, Cape May
Covid Era Dining....Helena, Nick, Youcef & Sophia
Sophia & the River...
Ismail, Sophia, Inés & Helena; Tunis, Tunisia
Monarch Butterfly Food
Breakfast with Hummingbirds at the Casita; Abiquiu, New Mexico
Two Angels
A favorite View in Sidi Bou Said, Tunisia
Sophia & Helena; Lake Temagami, Canada
Helena & Anifa
Sophia, Mona & Inés; Sidi Bou Said, Tunisia
View from Tree Perch into the Canopy...
...with Opa and Nick back in the Day ...
Youcef & Helena; the Island of Djerba, Tunisia...back in the Day..
...Djerba, Tunisia
Deep Influence: the White Mosques of Djerba
The 'Babies'...
Even more Bee Food
Nova..