Rent allocated to the actual demised space.

  • Rent allocated to the actual demised space.
  • Useful for normalising across buildings with different loss factors.

PSF usable (USF basis)

Measurement · US

Short definition

Rent allocated to the actual demised space.

Full definition

Useful for normalising across buildings with different loss factors. Convert RSF rent to USF: USF rent = RSF rent / (1 - loss factor). A 25% loss factor turns USD 100 RSF into USD 133 USF.

Why this matters for Class A leasing

PSF usable (USF basis) is part of the measurement 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.