Circadian Environments

Circadian Environments

Spaces designed around human biology.

Healthy home and building assessments, grounded in medicine and engineering.

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Your environment is part of your physiology.

Light · Air · Temperature · Sound · Water · Materials

The spaces we inhabit influence how we sleep, recover and function.

Circadian Environments brings together medicine, engineering and building science to create healthier places to live, work and stay.

A stone and slate living room under a large skylight, opening onto misty countryside at sunrise

Where we work

All places

Also: Workplaces · Childcare & schools · Architects & developers

What we assess

The science

  • Light

    Circadian lighting · daylight exposure · evening environments

  • Air

    Ventilation · filtration · humidity · pollutants

  • Thermal environment

    Temperature · sleep · seasonal comfort

  • Water

    Supply quality · testing · filtration

  • Acoustics

    Background noise · reverberation · sound between rooms

  • Materials

    Finishes · furnishings · emissions · durability

  • Sleep environment

    Darkness · quiet · overnight air and temperature

Beyond the core: Ageing in place & longevity · Biophilic design · Sustainability

How we work

What an assessment includes

You can’t address what you haven’t measured.

We are consultants. We assess the health of your space against your goals, whether that is better sleep, recovery and focus, or a healthier place for guests, residents and staff. Then we can work with you directly, your builders, architects, designers and trades to make the changes.

  1. Goals

    What you want the space to do for the people in it.

  2. Measure or review

    Instrument readings in existing spaces, or a review of plans for spaces not yet built.

  3. Report

    Findings and ranked recommendations, with the strength of evidence for each.

  4. Implement

    We brief and work alongside your builders, architects, designers and trades.

  5. Re-measure

    Readings after the work, so you know it made a difference.

Medicine × Engineering × Environment

Medicine and engineering, working together.

We started Circadian Environments to bring two disciplines to the same question. One of us reads the evidence on how environments affect health. The other measures what is actually happening in the building. Founded by two sisters with a shared mission, we are now a growing team with one aim: to make the places people live, work and stay measurably healthier.

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