Apple will hire 35 full-time employees to work at its Prineville data center facility by next March, according to a document it submitted in February to local officials.

That means more buildings are likely to go up soon on the computer company’s 160 acres off Baldwin Road in the southwest part of the city. The first data center is not expected to have employees.

“I’m still under a confidentiality agreement with Apple, but … those are the requirements they actually have, to employ that many employees,” said Crook County Judge Mike McCabe.

And more could come later, McCabe said, as is the case with Facebook, which continues to add to its data center facility and employment numbers on the other side of state Highway 126.

The promise of 35 jobs and their March deadline appear in Apple’s application to receive local property tax breaks for 15 years.

Previously, costs and other information associated with Apple’s Prineville project had been kept from public view. For months, local officials said the document was confidential.

Crook County Assessor Tom Green released the document Friday after city councilors and county commissioners gave their approval for the tax break earlier this week, shedding more light on one of Oregon’s highest-profile server-storing facilities.

Apple did not respond to a request for comment.

Like Facebook’s data centers, Apple’s initial data center will have aisle after aisle of servers to store information.

To be precise, 100,000 servers will operate in the building, according to Apple’s enterprise zone application.

Together, the servers will cost Apple $223.6 million. That’s $2,236 for each server — more expensive than four Apple iPad mobile devices.

“That’s going to power their whole App Store and everything else they’re planning,” said James Gentes, who runs The Social Business, a social media marketing service in Bend. “I expect lots of memory and lots of (central processing units) and virtualization, virtualization for sure.”

In other words, the servers will be more efficient at running different kinds of applications at once, with multiple processors.

Last year Apple announced that it would start hosting customers’ music and other content on remote servers through its iCloud service.

Facebook, the social networking company that started building its data center in Prineville in 2010, would not say how many servers it has in Prineville, spokesman Lee Weinstein wrote in an email.

Servers alone come to nearly 90 percent of the cost of Apple’s first 9,300-square-foot, three-megawatt data center building, which is under construction.

The land cost the computer company $6.4 million, and the company will spend $20 million on other property on the initial construction, which should wrap up by December, the application shows.

In the meantime, hiring will begin on May 15, and Prineville Mayor Betty Roppe is looking forward to seeing the impact on unemployment rates.

“But it’s not just the jobs that they bring,” Roppe said. “It is also other businesses that follow them. … And, also, we’ve spoken to many of our restaurants, service stations, grocery stores, and they say they definitely feel the impact. I think that it is indeed going to be a significant help to us.”

As part of the enterprise zone program, the average salary for an employee at Apple’s Prineville facility must be at least 150 percent of the county’s average. In 2010, the average was $35,513, according to Oregon Employment Department data.