SL Green Secures $1.65B Refinancing for One Madison Avenue

SL Green Realty Corp. has secured a $1.65 billion refinancing for One Madison Avenue, marking one of the largest office CMBS transactions in the U.S. over the past year.

The five-year, fixed-rate loan replaces the property’s previous $1.25 billion construction financing and is expected to close in the first quarter of 2026.

Fully Leased Class-A Office Asset in Midtown South

One Madison Avenue is a recently redeveloped Class-A office tower totaling approximately 1.4 million square feet.

The project includes a newly constructed 550,000-square-foot tower built above a renovated podium, creating a modern office asset with high-end amenities and flexible workspace configurations.

The building is currently fully leased to a roster of major tenants across technology, finance, and professional services sectors, positioning it as one of the top-performing office assets in Manhattan.

Strong Lender Demand for Trophy Office Assets

The refinancing was executed as a single-asset, single-borrower (SASB) CMBS transaction and was led by a consortium of major global financial institutions.

The deal was reportedly oversubscribed, signaling continued lender appetite for high-quality, well-leased office properties despite broader market uncertainty.

The loan carries a fixed interest rate of approximately 5.81%, reflecting current capital market conditions and elevated borrowing costs relative to prior cycles.

Refinancing Supports Broader Capital Strategy

The transaction is part of SL Green’s broader $7 billion financing plan for 2026, aimed at strengthening its balance sheet and extending debt maturities.

To date, the firm has completed more than $4.5 billion in financing and refinancing activity this year.

By refinancing One Madison Avenue, SL Green is effectively transitioning the asset from construction financing into stabilized, long-term debt.

Flight to Quality Drives Capital Allocation

The deal highlights a key trend in today’s office market: capital continues to concentrate in top-tier assets with strong leasing fundamentals.

While many office properties face valuation pressure and limited financing options, assets like One Madison Avenue benefit from:

• full occupancy and credit tenancy
• modern design and amenity packages
• prime locations within core submarkets
• institutional sponsorship

This “flight to quality” dynamic continues to shape both equity and debt markets.

Final Thoughts

SL Green’s $1.65 billion refinancing underscores the bifurcation within the office sector.

While lower-quality assets struggle to attract capital, trophy office properties remain highly financeable, supported by strong tenant demand and institutional backing.

Deals like this reinforce a clear market reality:
capital is still available — but only for the best assets.

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