Developer Peter Gilgan’s wallet is $10 million lighter today and officials of Oakville’s planned new hospital couldn’t be happier.

The donation is a shot in the arm to the hospital foundation’s campaign to raise $60 million to equip the hospital when it’s finished in 2015.

Construction is expected to begin in June.

On a blustery, sun-splashed day, about 100 people crammed into a tent on the barren hospital site at Dundas Street West and Third Line Thursday to mark the gift, the largest ever given to an Oakville organization.

“I just think the community really needs this hospital,” Gilgan, a father of eight and grandfather of two, told the Toronto Star. The Oakville resident is founder and CEO of Mattamy homes.

“Part of a growing community is its need for health care and education and all sorts of things,” he explained.

“The hospital here now is from the ’50s, it’s out of date and needs renewal.”

John Oliver, president and CEO of Halton Healthcare Services, said Gilgan’s donation “has set a new benchmark for philanthropy in our community — one that will undoubtedly inspire others.”

For $10 million, Gilgan received a stethoscope from the foundation, something his tiny granddaughter Sophie played with during the ceremony.