SANTA CLARA -- Ericsson has struck a deal to lease offices in Santa Clara, where the telecommunications and technology giant could move 1,600 to 2,100 employees.

Ericsson, in what is believed to be the largest office lease in the South Bay this year, will occupy two of the three office buildings developed in phase one of the Santa Clara Square project. Realty developer Irvine is building the mixed-used complex near the interchange of U.S. 101 and Bowers Avenue. The complex will include a shopping center consisting of a supermarket, restaurants and retail outlets.

Ericsson leased 410,000 square feet, where it will consolidate the majority of about 2,000 employees now working in Mountain View and San Jose. Several office brokers said it was the largest lease so far this year in Santa Clara County.

"This will be our regional hub for the West Coast," said Dwight Witherspoon, a spokesman for Sweden-based Ericsson. "The amenities, the shopping, the state-of-the-art offices, the location, the branding and visibility -- those were all considerations in moving to this site."

Ericsson hopes to occupy the buildings in spring 2015. The site is now under construction, said Doug Holte, president of Irvine's office division.

"One of the benefits of the project is it offers growth opportunities for Ericsson beyond what they leased," Holte said. "It also offers the opportunity for companies that complement Ericsson's business to locate near them."

Ericsson also wanted to be near the Silicon Valley talent pool.

"Our company has a growing need for software engineers and employees with a technology-savvy skill set who can partner, create, learn, sustain and innovate" said Bina Chaurasia, Ericsson's chief human resources officer.

Chaurasia said Ericsson hopes to be able to move toward what it calls a "networked society" with the tech engineers it hopes to hire in Santa Clara County. The company provides an array of telecommunications services and software for the mobile and computer sectors.

One of the groups that will move to the new Santa Clara location is the Mediaroom operation that Ericsson bought in 2013 from Microsoft. Mediaroom is involved in the delivery of television services over the Internet, also known as iPTV.

"The core of mobile technologies is in Silicon Valley, so we have to be here," Witherspoon said.

Irvine hopes that future phases of the office complex, which ultimately will total 1.2 million square feet when all the office buildings are completed, will accommodate companies of a wide array of sizes.

"We want to accommodate the work space needs of startup companies, mid-stage companies and mature companies," Holte said. "We look to address the full life cycle of tech companies."

Contact George Avalos at 408-859-5167. Follow him at Twitter.com/georgeavalos.