Commercial mortgage rates drive NYC commercial real estate valuations more than any other single variable. A 100 bp move in the 10-year Treasury translates to roughly a 50-75 bp cap rate adjustment, which on a $100M Manhattan asset is $8-12M of value. Understanding the rate environment is essential to underwriting any acquisition.
The Senior Debt Stack
For NYC commercial acquisitions in 2026: fixed-rate senior debt (agency, CMBS, life-co) prices off the 10-year Treasury plus a spread of 175-300 bps. Floating-rate senior debt (bridge, transitional) prices off SOFR plus 250-450 bps. The 10-year Treasury sits in the 4.0-4.5% range; SOFR sits in the 4.3-4.5% range. All-in senior coupons currently run 5.75-7.50% depending on asset class, leverage, and execution.
Mezzanine and Preferred Equity
Mezzanine debt fills the gap between senior debt LTV (typically 60-65% for value-add bridge) and the equity's preferred return threshold. Mezz coupons run SOFR + 700-1200 bps with a 10-12% IRR target. Preferred equity is similar economically but structured as equity for accounting and tax purposes — it gets a fixed preferred return (typically 9-13%) before common equity gets paid.
How Rates Flow Through to NYC Deal Economics
A typical $50M NYC multifamily acquisition with 60% senior debt at 6.5%, 15% preferred equity at 11%, and 25% common equity generates ~8% levered IRR to common in a base case. A 100 bp move in senior rates (everything else equal) takes that to ~6.5% levered IRR — a meaningful return drop. This is why active NYC investors rate-lock as early as possible and structure flexibility into the takeout.
- Lock the 10-year Treasury when fundamentals support the deal — don't try to time the rate cycle.
- For value-add bridge takeouts, model agency or CMBS pricing at the takeout date, not at acquisition.
- Use rate caps on floating-rate bridge if the hold spans more than 12 months.
- Skyline's capital markets practice introduces sponsors to active senior, mezz, and pref lenders on every deal.
Robert Khodadadian and Skyline Properties broker NYC commercial real estate transactions where the rate environment is a critical underwriting variable. The firm has closed $976M+ across NYC deals through every part of the rate cycle. Email info@skylineprp.com for confidential capital markets advisory.