How does a blend-and-extend work on a bank perm CRE loan?

When this works and when it does not

When blend-and-extend works for the borrower: rate certainty without paying prepay penalty, extended duration on the loan, often combined with a modest amendment fee instead of full refi closing costs. Best when the borrower wants to lock in a longer-term hold and the existing lender values the relationship.

When blend-and-extend works for the lender: retains the relationship, extends duration on a performing loan, avoids origination cost and underwriting work of a full new deal, and typically achieves a blended rate that is closer to current market than the original loan coupon.

Mechanics: the lender resets the loan rate to a blend of the existing rate and the current market rate (often weighted by remaining term and extension term). Loan term extends by a defined number of years (typically 3 to 7). Amortization schedule may reset. Amendment fee is typically 0.10% to 0.25% of outstanding balance.

When it does not work: agency multifamily (program rules), CMBS (loan is in a trust and modifications outside the open window typically require special servicing), HUD (program rules), or any loan where the lender wants to exit the relationship.

Borrower-side math: compare blend-and-extend total cost (blended rate × remaining + extension term + amendment fee) vs. full refi total cost (current market rate × extension term + prepay penalty + refi closing costs). Blend-and-extend is typically 25 to 75 bps inside what a full refi would cost the borrower because the lender saves the cost of full re-underwriting.

Negotiation posture: blend-and-extend is initiated by the borrower; the lender has no obligation to entertain it. Approach with a clear ask (defined extension term, defined amendment fee cap, defined blended-rate formula) and demonstrate the win-win for both sides.