Rendering shows what the new Mississauga Hospital will look like when it opens in 2034. It will rise more than 20 storeys on the same site where the original hospital was built in 1958. (Image: Trillium Health Partners)
A “landmark” $1-billion fundraising campaign is underway to help build what will be the largest hospital in Canada when it opens in Mississauga in 2034.
Trillium Health Partners Foundation announced on Monday the launch of the largest fundraising initiative in its history.
The Built for Us campaign will “support the delivery of faster, more specialized care closer to home and a health system built around the people who rely on it,” the foundation said.
Specifically, the campaign will support:
The Peter Gilgan Mississauga Hospital, a $13.9-billion “state-of-the-art” health-care centre that will rise up 22 storeys on the same site as the current Mississauga Hospital. It will check in at 2.8 million sq. ft. in size when it opens in 2034 and will house within it the Shah Family Hospital for Women and Children, to be the first such medical facility in Ontario.
Redevelopment of The Gilgan Family Queensway Health Centre, which will more than double the number of beds at that facility. “For patients and families, that means greater local access to emergency, medical imaging, rehabilitation and specialized services, expanded care for women and children, and a more connected, proactive health system that supports people at every stage of life,” THP foundation officials said.
When completed, The Peter Gilgan Mississauga Hospital will be roughly three times the size of the current hospital, which first opened at the southwest corner of Hurontario Street and The Queensway West in 1958.
Construction began on the new Mississauga hospital in June 2025 and this past June the first concrete was poured.
Trillium Health Partners Foundation raises funds to support “the highest-priority needs” of Trillium Health Partners, the health-care organization that oversees Mississauga’s two hospitals (Mississauga and Credit Valley hospitals) in addition to Queensway Health Centre in Etobicoke, just steps east of Mississauga.
“Historic investments” help build new hospital
The foundation said its Built for Us campaign “builds on historic investments” from the Ontario government — which is paying 75 to 85 per cent of the cost — and City of Mississauga, “together with transformational support from donors to advance one of the most significant health-care transformations underway in Canada.”
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Foundation officials added “this unprecedented combination of government, municipal and philanthropic investment is helping turn an ambitious vision for health care in Mississauga and the west GTA into reality.”
Foundation President and CEO Caroline Riseboro said the fundraising campaign “is more than bricks and mortar. It is a promise that when your child is sick, when your parent needs care or when your family faces an unexpected health challenge, exceptional care will be there when you need it, and closer to home.
“This is a once-in-a-generation opportunity for our community to come together and help build a health system that is more connected, more responsive and built around the people it serves.”
The last truck is shown here recently leaving the excavation site at Mississauga Hospital. Officials say the excavation phase is nearly done. (Photo: Trillium Health Partners)
Trillium Health Partners President and CEO Karli Farrow said the fundraising efforts in addition to hefty contributions from the province, City of Mississauga and other donors are “building something better” for the next generation.
“Built for Us reflects something deeply Canadian: the belief that we are stronger when we look after one another,” Farrow said in a news release. “Together, we have an extraordinary opportunity to build a healthier future and show what health care in Canada can achieve when communities unite around a shared vision.”
When it opens to patients and the broader community in 2034, The Peter Gilgan Mississauga Hospital will feature, among other things, 950 patient beds (100 per cent private rooms), a new emergency department to be three times the size of the current ER and nine new and 14 enhanced state-of-the-art operating rooms, which will increase surgical capacity and reduce wait times across the region, officials noted.
The City of Mississauga is contributing $390 million to the cost of the new $13.9-billion hospital. Infrastructure Ontario is in charge of the project.
Developer/philanthropist Peter Gilgan, for whom the hospital is named, contribued $105 million to the new health-care centre in 2022. At the time, the donation was the largest-ever financial gift to a hospital in Canadian history
Trillium Health Partners Foundation is leading one of the most ambitious health care transformations in Canadian history.
It’s called Built for Us because it puts people, patients, families and the community at its centre.
Together, we are raising $1 billion in support of:… pic.twitter.com/ZhteZi8Vry
— Trillium Health Partners (@THP_hospital) October 5, 2026
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