Blackstone is quietly testing the exit ramps at Willis Tower, sounding out a tight circle of investors about taking on the skyscraper’s roughly $1.3 billion securitized loan. It would be a striking move for the firm, which bought the Loop landmark for $1.3 billion in 2015 and then poured hundreds of millions more into upgrades. Eastdil Secured is reportedly handling the outreach while Blackstone points to fresh leasing wins and hefty Skydeck foot traffic. For Chicago, the big question is whether this all ends in a sale, a loan transfer or a new financing play.
Blackstone is quietly testing the market
As first reported by Bisnow, Blackstone has in recent months approached investors big enough to assume the tower’s $1.3 billion CMBS loan, with sources saying Eastdil Secured is leading those conversations. Blackstone has not confirmed that Willis Tower is formally on the market, but it did issue a statement that leans heavily on the building’s leasing momentum and strong Skydeck visitation.
Loan timeline and who holds the notes
The debt was bundled into a CMBS loan in 2018 and briefly moved into special servicing ahead of a March 2025 maturity before an extension pushed that date to March 2028, according to Commercial Observer. That CMBS structure, along with the special servicing history and extension options, is a key reason Blackstone appears to be courting investors that can handle complex securitized paper instead of simply hanging a for-sale sign on the tower.
Valuation swings after a big renovation push
Blackstone paid $1.3 billion for the West Loop tower in 2015 and has spent aggressively to reposition it. Green Street estimates roughly $670 million has gone into renovations since then, including an early $200 million refresh. Yet the building’s value has not exactly followed a straight line: CoStar reported one private valuation at about $1.03 billion, even as other loan documents cited in coverage pointed to a mid-2025 appraisal closer to $1.4 billion.
Leasing wins and the Skydeck cash machine
Blackstone is leaning hard on recent leasing numbers to make the case that Willis Tower is stabilizing. The company has said it has leased more than 600,000 square feet at the property over the past two years and has highlighted strong visitor counts at the Skydeck, according to Bisnow. Among the recent deals cited are Adtalem Global Education’s roughly 84,000 square foot relocation and Zurich North America’s move for about 52,000 square feet, leases that help support the narrative of a re-stabilizing asset.
Why buyers will weigh the hole between debt and price
Any potential buyer will have to wrestle with a valuation gap. Green Street notes that current cash flow covers the debt service, but coverage is weaker than what was originally underwritten, and rising interest and tax costs have piled on more expense pressure. Industry reporting also points out that Blackstone has been trimming its office exposure in recent years, so either a sale of Willis Tower or a transfer of its loan would sit neatly inside a broader retrenchment strategy, as covered by The Real Deal.
For now, there is no broad, splashy marketing campaign for Willis Tower, and discussions remain limited to a small group of heavyweight investors. Unless a firm bid lands or a fresh financing solution takes shape, Blackstone is likely to keep its grip on the tower while the city’s real estate watchers stay glued to what happens next.
