Vacancy rate plus space currently leased but available for sublease.
Market metric · US
Vacancy rate plus space currently leased but available for sublease">sublease.
Availability is a more honest measure of true market supply than headline vacancy. The gap between vacancy and availability widens during downcycles as tenants attempt to offload underused space.
Availability rate is part of the market metric 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.