Ninety percent indoors
The places you live and sleep are first-order determinants of health. Most homes are designed for everything except the body that lives in them.
MAVI works at the intersection of architecture, interior design, and human biology to design spaces that actively support health and extend healthspan.
We spend more than ninety percent of our lives indoors. The places we live, sleep, work, and recover are first-order determinants of health, yet almost no homes are designed with biological outcomes in mind.
MAVI translates peer-reviewed longevity science into actionable architectural specifications. Ten interconnected domains. One hundred and twenty-nine measurable factors. Every recommendation cited.
The thesis
Hover a card to read the claim. Every panel of the home is a longevity instrument the moment it is specified.
The places you live and sleep are first-order determinants of health. Most homes are designed for everything except the body that lives in them.
Air, water, light, sound, temperature, materials, microbiology, technology, mind, habits. We model the home as a single organism, not a list of finishes.
Every domain decomposes into measurable signals. Each signal is graded against published thresholds, weighted by exposure, and translated into specification.
WHO, WELL, peer-reviewed sleep, circadian, and indoor-environment literature. No anecdotes, no biohacker folklore. The Diagnostic ships with sources.
The places you live and sleep are first-order determinants of health. Most homes are designed for everything except the body that lives in them.
Air, water, light, sound, temperature, materials, microbiology, technology, mind, habits. We model the home as a single organism, not a list of finishes.
Every domain decomposes into measurable signals. Each signal is graded against published thresholds, weighted by exposure, and translated into specification.
WHO, WELL, peer-reviewed sleep, circadian, and indoor-environment literature. No anecdotes, no biohacker folklore. The Diagnostic ships with sources.
A Geneva-based principal at the intersection of UHNW residential, hospitality, and longevity medicine. Kas works to make the invisible influences of a home, light, air, sound, materials, temperature, visible, measurable, and deliberately designed, so the spaces we live in support human vitality instead of quietly draining it.
Her advisory and partnership work, listed below, share a single throughline: biology over trends, precision and softness, environment as the foundational layer of health.
MAVI is the architectural expression of that thesis, ten interconnected domains, one hundred and twenty-nine measurable factors, applied to the place a person spends the largest, quietest part of their life.
Homes are lived systems. They should evolve with the people inside them. Precision and softness coexist. The goal is never optimisation for its own sake. It's creating spaces where you can be fully human.
Kas Bordier
Kas Bordier
Recent on Instagram
Short videos and field notes from current MAVI projects, the science, the specifications, the rooms.
Why your bedroom is a longevity instrument 
The travertine bathroom you can actually live in 
Moss walls, biophilia, and the parasympathetic system 
How light architecture rewires sleep 
Air quality is interior design 
The architecture of recovery EMF, sleep, and the bedhead audit 
Why ninety percent of life happens indoors Six principles of longevity architecture
Six principles guide every project, from a Geneva apartment to a sixty-five-residence development on the Côte d'Azur.
Any size, any type, any price point. The framework applies across renovations, new builds, and community-wide developments, accessible regardless of budget or scope.
Start at planning. Embrace holistic design. Health considerations guide design from inception, physical, mental, social, and environmental wellness, tailored to the people who will live there.
Beyond safety to active enhancement. Rather than meeting minimum building codes, longevity architecture actively promotes positive health outcomes with measurable improvements in occupant wellbeing.
Environmental factors plus behaviour encouragement. Designs combine passive infrastructure, clean air, lighting, calm acoustics, with active elements that invite stair use, time outdoors, and movement through the day.
Embedded in design, activated through programming. Health features are built into materials and systems, then activated through ongoing community programming and engagement.
Individual wellness connected to community health. Projects prioritise shared spaces benefiting occupants and surrounding neighbourhoods, blurring private-public boundaries with intent.
The MAVI thesis
Five drops, in the constellation that names us. Each one a domain your biology never stops listening to. Watch them move, and you watch the home becoming itself.
No domain leads. No domain follows. The cleanest air is undone by a noisy room. The brightest daylight is undone by the wrong materials. The home is one ring, or it is none.
The drops scatter, but they remain in conversation. The home is a single organism, calibrated to the body that lives in it.
Brand beliefs
Design your environment like your life depends on it, because it does.
Noise distracts. Silence shows you the truth.
If it's built right, it liberates you.
A brand is how people feel in your presence. The rest is decoration.
Growth is the baseline.
The circle is the symbol of truth, wholeness, and return.
It shows up in galaxies. Shells. Flowers. Ancient blueprints. The one form that needs no beginning, or end. A frequency that repeats through life, death, rebirth, and back again.
It reminds you that presence is circular: always returning, always evolving, always complete.
The MAVI 129™ framework is the operational language of longevity architecture. Every domain operationalised. Every factor measurable. Every recommendation cited.
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