Stabilized occupancy is the long-run average occupancy rate that a property is expected to sustain under normal market conditions after lease-up is complete. It represents an equilibrium assumption, not a peak occupancy achieved in a single favorable quarter and not a trough occupancy produced by a major tenant vacancy, but the level that a reasonably well-managed building in a functioning market can maintain over time.
Appraisers and underwriters use stabilized occupancy rather than current actual occupancy when valuing properties that are in the process of lease-up, have recently experienced a significant tenant departure, or are operating in a temporarily disrupted market.
Stabilized occupancy differs from physical occupancy in a way that matters for cash flow modeling. Physical occupancy is the percentage of rentable area currently leased; economic occupancy is the percentage of potential rent actually being collected (a tenant in occupancy but not paying rent, as during a free rent period, is physically occupied but economically vacant).
Stabilized occupancy is forward-looking: it represents the expected long-run equilibrium, not the current moment, and it drives the market vacancy allowance applied in the pro forma: if the market is 10% vacant and the subject property's stabilized occupancy is expected to be 92%, the model applies an 8% vacancy deduction to gross potential rent to arrive at effective gross income.
The gap between current occupancy and stabilized occupancy is the lease-up discount in CRE valuation. An appraiser valuing a newly completed office building at 40% occupancy uses the stabilized occupancy (say, 90%) as the income basis for the going-in cap rate valuation, then deducts a lease-up discount (the present value of the cash flows foregone during the expected lease-up period) to arrive at the as-is value.
This discount can be substantial: if lease-up is expected to take 36 months, the as-is value will be significantly below the stabilized value, and the difference represents the lease-up risk that a buyer acquires when purchasing the property in its current condition.
Market-level stabilized occupancy rates vary by asset class, submarket, and cycle position. Multifamily assets in supply-constrained urban markets may carry stabilized occupancy assumptions of 95-97%; suburban office markets with persistent oversupply may use 80-85%.
Appraisers derive stabilized occupancy from comparable property surveys, market reports from major brokerage houses, and long-term vacancy trend data; the assumption must be supportable by observable market evidence rather than derived from the subject property's historical peak performance alone. A stabilized occupancy assumption that exceeds what comparable properties sustain in the same submarket is a red flag in any underwriting review.
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