Apple Sunnyvale expansion is continuing with a lease for a 125,800-square-foot office building at 580 North Mary Avenue. The deal adds another substantial property to the company’s growing collection of owned and leased offices across the South Bay.
The building sits within a part of Sunnyvale where Apple already maintains a dense real-estate presence. Its location near North Mathilda Avenue places the new office close to campuses and individual buildings the company purchased during an aggressive series of transactions in 2025 and 2026.
Apple has not disclosed which teams will occupy the property, when employees will move in or how many people the building can accommodate. The lease nonetheless points to continued demand for physical office and research space near Apple Park, despite a technology sector that has spent several years reducing facilities and adjusting to hybrid work.
The agreement is also notable because Apple has repeatedly purchased South Bay buildings after initially occupying them as a tenant. The North Mary Avenue lease may remain a conventional rental, but the company’s recent history makes the property another potential candidate for eventual ownership.
Apple Sunnyvale Expansion Reaches North Mary Avenue
The newly leased building is located at 580 North Mary Avenue, west of downtown Sunnyvale and close to several major transportation routes through Silicon Valley.
The property contains approximately 125,800 square feet of office space. The site previously housed a U.S. Postal Service facility before being redeveloped as a modern office building during the growth of Sunnyvale’s technology sector.
LinkedIn was associated with the building after its development, while the property was later marketed for lease. Apple’s agreement removes another large block of available office space from a Sunnyvale market increasingly shaped by major technology companies.
A building of this size could support several hundred employees, depending on interior design, laboratories, meeting areas and specialized technical installations. Apple frequently uses South Bay locations for engineering, product development, operations and other functions requiring closer access to its Cupertino headquarters.
The company rarely identifies the work conducted inside individual leased buildings. Some properties may contain conventional offices, while others are adapted for hardware development, testing, laboratories or secure engineering programs.
That uncertainty makes the lease more significant as a capacity signal than as evidence of one specific project. Apple expects to need additional space in the region and has committed to a building large enough to serve a substantial organization.
A Billion-Dollar South Bay Buying Campaign
The lease follows one of Apple’s most active periods in Silicon Valley commercial property.
In June 2025, the company paid $350 million for Mathilda Commons, a two-building Sunnyvale campus at 615 and 625 North Mathilda Avenue. The approximately 382,500-square-foot property can accommodate between 1,500 and 1,900 employees.
During the same week, Apple paid $166.9 million for Cupertino Gateway, a three-building office complex covering approximately 220,000 square feet beside Apple Park. The company had already been leasing both properties before acquiring them.
Apple later agreed to purchase the larger Mathilda Campus from Kilroy Realty for approximately $365 million. That four-building Sunnyvale complex contains about 663,000 square feet, with Apple already occupying most of it under leases.
Those three deals brought the company’s 2025 South Bay property commitments to roughly $882 million. Additional transactions and related investments pushed the wider expansion beyond that figure.
The buying continued in 2026. Apple paid approximately $162.2 million for a 195,000-square-foot building at 684 West Maude Avenue in Sunnyvale. The price was reportedly well below the property’s previous transaction value, showing how Apple can use weakness in the commercial office market to secure long-term assets.
Combined, the purchases represent well over 1 million square feet of office capacity. The latest North Mary Avenue lease adds another 125,800 square feet without requiring Apple to commit immediately to ownership.
Why Apple Continues Investing in Offices
Apple’s property strategy differs from that of many large technology companies that reduced office portfolios after the pandemic.
The company develops products through close coordination between hardware, software, industrial design, silicon, operations and services teams. Some of that work involves unreleased devices, custom equipment and secure laboratories that cannot be recreated easily through remote work.
Apple has maintained a structured return-to-office policy requiring many corporate employees to work from company facilities for part of the week. Additional buildings give teams room to operate near one another while preserving security and access to specialist resources.
Sunnyvale also offers proximity to Apple Park without requiring every group to be located inside the main circular campus. Apple can distribute engineering and operational teams across nearby properties while maintaining short travel times between facilities.
The concentration may become more valuable as the company expands work in custom silicon, modems, artificial intelligence infrastructure, health technology, robotics, cameras and new device formats. These programs can require dedicated laboratories, testing environments and confidential production areas.
The new lease does not confirm that any of those divisions will occupy North Mary Avenue. It does provide Apple with flexible capacity as existing projects grow and new teams require space.
Leasing First and Buying Later
Apple’s recent transactions reveal a recurring pattern: occupy a building through a lease, then acquire it when ownership becomes strategically or financially attractive.
Mathilda Commons and Cupertino Gateway were both purchased after Apple had already used the properties as a tenant. Buying an occupied building reduces relocation uncertainty and gives the company long-term control over facilities already adapted for its work.
Ownership can also protect Apple from future rent increases, landlord changes and redevelopment decisions. A company planning to remain in the Santa Clara Valley for decades may prefer to own critical buildings rather than depend indefinitely on commercial leases.
The depressed office market has created opportunities. High vacancy rates, expensive financing and weaker demand from smaller technology companies have pressured property values. Apple can purchase high-quality buildings at prices that may have been difficult to obtain during the market’s previous peak.
The 684 West Maude acquisition illustrated that advantage. Apple secured a modern Sunnyvale building for about 27% less than its reported 2022 sale price.
A future purchase of 580 North Mary Avenue is not guaranteed. Leasing gives Apple the ability to test the property, complete improvements and decide whether it deserves a permanent place in the portfolio.
Sunnyvale Becomes an Extension of Apple Park
Apple Park remains the company’s symbolic and operational headquarters, but Sunnyvale has become one of the most substantial extensions of its Cupertino base.
Apple owns or leases numerous buildings throughout the city, including the large Apple Wolfe campus near Central Expressway. Its expanding presence around Mathilda Avenue and Maude Avenue creates another concentration of facilities northwest of Apple Park.
This clustered approach can reduce the disadvantages of operating across scattered suburban offices. Teams remain within a limited geographic area, company transportation can connect the buildings and specialized facilities can be shared more easily.
Sunnyvale also provides access to talent throughout the wider Bay Area. Its proximity to Caltrain, major roads and other technology employers makes the city a practical location for recruitment, even as housing and transportation costs remain persistent regional problems.
Apple’s continued expansion supports the local office market but also increases the company’s influence over Sunnyvale commercial property. Buildings occupied or acquired by Apple leave less high-quality space available to other employers, particularly around the most desirable technology corridors.
The North Mary Avenue lease may appear modest beside Apple Park or the company’s billion-dollar property purchases. At 125,800 square feet, however, it is larger than many corporate headquarters and capable of supporting a meaningful operation.
Its significance comes from accumulation. Each lease and acquisition is turning Sunnyvale from a collection of satellite offices into a connected Apple employment center with enough capacity to support product development well beyond the current hardware cycle.
