ECOASIS: Healthy housing for people with MCS | ASEQ-EHAQ
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ECOASIS, a healthy housing project of ASEQ-EHAQ

A healthy place to live, for people who can't live safely anywhere else.

ECOASIS is a housing community planned for people with Multiple Chemical Sensitivity (MCS), on land we already hold in the Laurentians. The land is secured. Your gift now pays for the work that turns it into a buildable plan.

  • Every gift goes to a designated ECOASIS fund
  • Official tax receipt for eligible gifts
  • Give once or every month
A long, low, dark-clad home with glowing floor-to-ceiling windows among tall mossy trees
$750KLand secured in the Laurentians
$60K–$90KRaising now for feasibility and design
A project of ASEQ-EHAQWatch on YouTube

Watch the vision.

Why people with MCS need housing built differently, and what ECOASIS will look like.

ECOASIS and housing for people with MCS (French version)

Ordinary buildings push people with MCS out of their homes.

For someone with MCS, the air inside a typical building can make a home impossible to live in. Our helpline hears it constantly, and our research on refused accommodation documents it.

  • Fragranced cleaning in shared hallways and common areas
  • Pesticide treatments in the building
  • Renovations and materials that off-gas for months
  • A neighbour's dryer sheets venting near a window
3.1M
Canadian adults report living with MCS-related impacts
Source: Statistics Canada, Canadian Community Health Survey, preliminary data, January to July 2025

New to MCS? Here is what it is.

Multiple Chemical Sensitivity (MCS) is a chronic health condition and a recognized disability in Canada and internationally. Reactions are triggered by volatile organic compounds (VOCs) and other chemicals in everyday products, often at very low levels.

What triggers it

Fragrances, cleaning and laundry products, air fresheners, pesticides, and chemicals released by building materials and furnishings.

How it affects people

Symptoms can involve several body systems at once: headaches and brain fog, breathing problems, digestive, heart, muscle and skin reactions.

Why a home matters most

There is no cure. The approach supported by the medical literature is reducing exposure, starting where people spend the most time. For many, that means a safe home is the foundation of everything else.

People with MCS have a legal right to reasonable accommodation under Canadian human rights law.

Learn more about MCS

Housing designed around clean air, from the ground up.

ECOASIS is a healthy housing project on land ASEQ-EHAQ already holds in the Laurentians, designed for people who cannot live safely anywhere else, and for a community that understands why.

Plans include affordable homes with modest workspaces, a community hall and kitchen, organic gardens and accessible walking trails, on a site chosen away from traffic, industry, agricultural spraying and other sources of contamination.

"ECOASIS was envisioned as a community: a place where people living with MCS could live safely, participate fully, support one another, and reconnect with community life."
ASEQ-EHAQ, submission to the National Housing Council Review Panel, June 2026

Lowest-emission materials

Every material chosen for what it releases into the air, and cleared of emissions before anyone moves in.

Fragrance-free operation

Cleaning, maintenance and shared spaces run without fragranced products, as a rule of the community rather than a favour to ask.

Ventilation designed for residents

Mechanical ventilation planned around people who react to trace exposures, not around minimum code.

A community that understands

Neighbours who live by the same rules because they need them too, which ends the isolation so many people with MCS live with.

The original concept

Drawings from ECOASIS's first design work. The feasibility phase will test and update them.

Help fund the next design
ECOASIS concept site plan showing housing, a community centre, gardens and trails
Site plan. Homes, community centre, gardens and trails laid out across the land.
Concept drawing of the ECOASIS community centre interior
Community centre. A shared, fragrance-free space to meet.
Concept elevation of ECOASIS residential units
Residential units. Elevation concept.
Concept section view of ECOASIS residential units
Inside the units. Section view of the residential buildings.
Concept elevation of ECOASIS larger houses
Larger homes. Elevation concept.
Concept elevation of ECOASIS greenhouses
Greenhouses. Elevation concept.

From the ECOASIS campaign

Graphics ASEQ-EHAQ has used to share the project.

ECOASIS campaign graphic 1
ECOASIS campaign graphic 2
ECOASIS campaign graphic 3
ECOASIS campaign graphic 4

The land is secured. The next step is the plan.

We are fundraising for one phase at a time. Feasibility and design comes first; the build follows with its own campaign.

Forested land in the Laurentians with an open meadow clearing1
Done

Land

25 acres donated to ASEQ-EHAQ, with zoning changes and tax measures from the Municipality of Mille-Isles.

Architectural site plans spread on a table in a forest clearing, with survey stakes behind2
Raising funds now

Feasibility and design

Turns the land into a costed, buildable project that builders, lenders and major funders can say yes to.

Low-emission timber homes under construction in a forest clearing3
Next campaign

Build

Construction of the homes and shared spaces, funded through a separate capital campaign.

Map showing the location of the ECOASIS land in Mille-Isles, Québec

Where the land is

Mille-Isles, in the Laurentians: a clean-air area about an hour and a half from Montréal and 30 minutes from Saint-Jérôme, the nearest town with social services and community infrastructure.

The land is on the traditional territories of the Algonquin (Omàmìwininìwag), Mohawk (Kanienʼkehá꞉ka) and Anishinabewaki peoples.

What feasibility and design covers

Four pieces of work, each one a document funders and partners can review.

ECOASIS has already completed professional and technical studies. This phase brings that work up to date for today's costs, programs and building standards.

  • Site and environmental assessmentSoil, water, air quality and access on the actual site.
  • Architectural conceptA design built on lowest-emission principles from the first drawing.
  • Governance modelWho owns, runs and lives at ECOASIS, and how decisions are made.
  • Capital planWhat the build will cost and how it will be funded.

ECOASIS has come further than most housing projects ever do

Two decades of work by people living with MCS, with support from every level of government along the way.

  1. 2004ASEQ-EHAQ is founded and begins documenting the housing barriers people with MCS face.
  2. 2013Land is donated in Mille-Isles. On February 7, the Société d'habitation du Québec reserves 40 units for ECOASIS under AccèsLogis Québec, and the municipality adopts zoning changes and tax measures.
  3. 2019More than 90 people are on the ECOASIS waiting list. CMHC accepts an application for a $700,000 contribution from the National Housing Strategy Innovation Fund.
  4. 2020CMHC confirms its intention to contribute $700,000, recognizing ECOASIS as a model that can inform housing elsewhere in Canada.
  5. 2022Regional health authorities (CISSS des Laurentides) acknowledge the need for healthy, safe and affordable housing in the region.
  6. NowFeasibility and design, funded by donors and partners who want to see ECOASIS built.

The project was later suspended while government authorities reviewed questions about its intended residents. The need it was built to meet has only grown.

One phase, one clear goal.

The feasibility and design phase is the first amount we are raising, and it unlocks everything after it. A finished study and design is what governments, lenders and major donors ask to see before they commit to a capital project.

The full build will follow with its own campaign, so every gift today has one job: getting ECOASIS to a plan that can be built.

Naming opportunities and multi-year gifts are available with board approval. Talk to us about what fits.

Feasibility and design goal
$60,000 to $90,000
covers all four pieces of work:
  • Site and environmental assessment
  • Architectural concept
  • Governance model
  • Capital plan
Give to ECOASIS

Then: the build, through its own capital campaign.

Why it matters beyond our members

A model other communities can copy

Nothing like ECOASIS exists in Canada. It was designed from the start as a demonstration model, and CMHC's Innovation Fund recognized its potential to guide similar housing across the country.

Training for the trades

The build itself can train young tradespeople in lowest-emission construction, a skill the whole industry will need as expectations for indoor air quality rise.

Give, or help us build it.

Every gift and every partnership moves ECOASIS from land to a plan that can be built.

Partner

Partner with us

ECOASIS needs more than money. If your organization can lend expertise, land a grant or open a door, we would like to hear from you.

  • Architects and designersShape the concept and the lowest-emission design.
  • Builders and tradesAdvise on costs, methods and clean worksites.
  • Foundations and fundersFund the feasibility phase or the build.
  • Municipalities and governmentHelp with approvals, programs and public support.

Prefer email? Write to office@aseq-ehaq.ca.

Your message goes to office@aseq-ehaq.ca.

Message sent. Our team will get back to you within a few business days.
Since 2004supporting people with MCS
2,000 membersacross Québec and Canada
Cited by the UNin the CRPD Committee's 2025 observations to Canada
Recognized by CMHCthrough the National Housing Strategy Innovation Fund
About ASEQ-EHAQ
Our 2026 housing submission was endorsed byDr. John Molot, University of Ottawa Faculty of Medicine / Dr. Riina Bray, Environmental Health Clinic, Women's College Hospital / Dr. Jennifer Armstrong, Ottawa Environmental Health Clinic
ECOASIS is a project of the Environmental Health Association of Québec (ASEQ-EHAQ).
Give to ECOASIS