Hawke's Bay Regional Sports Park Trust chair Lawrence Yule said he was "ecstatic".
"I also think it's one of the most significant days in Hawke's Bay's history. We are having a 10-year, eight nations, truly international event."
Hawke's Bay Regional Council chairman Fenton Wilson said it was his council's belief that "good things take time".
"It's a huge day for Hawke's Bay, and it's a pleasure to be involved."
The event was secured in part due to $2 million in funding from the Hawke's Bay Regional Council for the development of the hockey turf at Sports Park Hawke's Bay, as well as $663,000 of funding from Hastings District Council.
Businessman Bruce Mactaggart, who was instrumental in organising the sponsors into the Hawke's Bay Sports Events and Education Consortium which is underwriting the event, said while hockey was the focal point, spin-offs for the Bay tourism industry and the local economy would be huge.
"We have got some agreements in place to take the event, to a complete event experience," he said.
"The feedback we've already had from all sorts of the tourism sector is one of great excitement.
"We've actually convinced the World Hockey Board to make a permanent fixture in New Zealand and in Hawke's Bay." He said it would become an event all teams were "fighting to come to".
Work was expected to start tomorrow on the construction of the sports park infrastructure, to be ready for the April tournament.
Hockey New Zealand general manager events Ian Francis said the aim was for the event to become a regular landmark invitational tournament where the world's top women's teams want to come and compete each year.
Black Sticks Women's coach Mark Hager would be using the tournament as part of the Black Sticks build-up to the World Cup in Holland in May and the Commonwealth Games in Glasgow in July.