Denny's is offering up five of the 16 floors inside its own downtown Spartanburg headquarters tower, putting roughly 48,000 square feet of space on the market just as the company settles into new ownership. The pancake chain recently stopped using the floors altogether, opening the door for outside tenants to move into the building it has called home since 1991.
The available space spans the mezzanine level and the fourth through seventh floors, according to a Colliers listing cited by the Post and Courier. Each of the four upper floors offers about 10,500 square feet of rentable space, while the mezzanine comes in smaller at around 7,000 square feet.
Denny's confirmed through a company spokesperson that it occupied those five floors until recently. Colton Grace said the company reviewed how it uses its Support Center and opted to free up the space, with the move described as an effort to bring teams closer together and shore up space that had gone unused.
What Tenants Would Get Access To
Whoever leases the space will not just be renting an office — they'll get a few perks tied to sharing a building with a national restaurant brand. The report notes that tenants can use the private Denny's restaurant in the lobby, which isn't open to the public, along with the tower's top-floor atrium and on-site security.
The building itself is no small presence downtown. At 180,000 square feet, the tower remains Spartanburg's tallest building, a distinction it has held since the company relocated its headquarters from Irvine, California, in 1991. United Way of the Piedmont already occupies the tower's third floor, making it one of a handful of outside tenants already sharing the building with Denny's.
New Ownership Behind the Scenes
The timing follows a major ownership shift for Denny's Corp., which had been publicly traded since 1968 before being purchased for $620 million in January by TriArtisan Capital Advisors, Treville Capital Group and Yadav Enterprises. TriArtisan is a New York-based private equity investment firm, while Treville Capital Group is described as an investment firm in its own right. Yadav Enterprises, one of Denny's largest franchisees, operates about 550 restaurants and also owns the Taco Cabana and Nick the Greek brands.
A Tight Market for Office Space
Denny's is putting space on the market at a moment when Greenville-Spartanburg office demand is running hot. Overall vacancy in the regional market fell 20 basis points quarter over quarter to 8.7% in the third quarter of 2026, according to Cushman & Wakefield. Net absorption topped 31,000 square feet in the quarter, pushing year-to-date occupancy gains to nearly 125,000 square feet, while new leasing reached almost 243,000 square feet in the same period and more than 614,000 square feet for the year so far.
Asking rents climbed too, rising 2.6% quarter over quarter to $26.08 per square foot and landing 5.2% higher than a year earlier — a new market high, per the same report. Downtown Spartanburg has been especially tight: total office vacancy there sat at just 2.82% in the third quarter of 2025, with Class A vacancy at a mere 1.18%, according to the Upstate Business Journal. Class A space in the central business district averaged $31 per square foot that quarter, while the broader downtown average asking rent came in at $27.65 per square foot across a total inventory of 1,079,335 square feet.
That scarcity is part of why Spartanburg's downtown is also due for its first new office construction in more than a decade, with The Johnson Group's Project Core slated to add two buildings totaling 240,000 square feet and room for more than 1,200 workers, the outlet reports. Against that backdrop, Denny's newly available floors represent a rare chunk of built-out space hitting the downtown market at a time when demand has consistently outpaced supply.
