Tri-party agreement protecting the tenant if the lender forecloses.

  • Tri-party agreement protecting the tenant if the lender forecloses.
  • Essential on every Class A US lease.

Subordination, non-disturbance, and attornment (SNDA)

Legal · US

Short definition

Tri-party agreement protecting the tenant if the lender forecloses.

Full definition

Essential on every Class A US lease. The tenant subordinates to the lender's mortgage in exchange for a non-disturbance promise: if the landlord defaults and the lender forecloses, the lease survives.

Why this matters for Class A leasing

Subordination, non-disturbance, and attornment (SNDA) is part of the legal vocabulary that institutional Class A occupiers, landlords, and advisers use across US markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks the US definition alongside the global standard so cross-border occupiers can translate quickly.