SANTA CLARA — Nvidia is eyeing a major expansion of an office site the company owns next to its headquarters, documents on file with Santa Clara city planners show.

The tech company has filed a proposal to build a new office building at 2400 Condensa St., which is west of, and directly next to, Nvidia’s complex on San Tomas Expressway, documents show.

“To support our growth as we push the boundaries of accelerated computing, we have submitted a permit application to expand our headquarters with additional offices, lab space and parking,” an Nvidia spokesperson stated in comments emailed to this news organization.

Nvidia’s development plans envision the demolition of an office and research building that Nvidia already owns and occupies. The existing office building totals 215,500 square feet, according to commercial real estate database Property Shark.

That building is on a parcel that is roughly 11 acres, Property Shark estimates show.

Nvidia intends to replace the existing structure with a modern office building that is expected to total 324,000 square feet, according to Santa Clara planning files.

The development would also include a parking structure with about 2,900 vehicle spaces and 36 surface parking spaces, city documents show.

“We hope to start work on this third phase of our long-standing development agreement with the city in the fall,” the Nvidia spokesperson stated in the email.

Santa Clara-based Nvidia has embarked on a remarkable quest to widen its footholds in the South Bay, primarily through property purchases next to and near its headquarters. It has also pursued leasing deals in locations that include an office building in San Jose.