Stabilized Property

The definition is market-relative, set by appraisal and lending practice.

The term comes from appraisal and lending, not the Code. The OCC handbook on commercial real estate lending describes stabilized occupancy as the level a property is expected to achieve after it is exposed to the market for lease-up over a reasonable period and at terms comparable to similar properties. An appraisal can carry an as-stabilized value, an estimate of what the property will be worth on the date it is projected to reach that level.

Because the test is relative, no single percentage applies everywhere. Lenders set their own floors: the Fannie Mae Multifamily Guide requires at least 85% physical and 70% economic occupancy on the commitment date and for the preceding three months. Physical occupancy counts units with tenants in place; the OCC handbook warns that collections, not the rent roll alone, show true economic occupancy.

A hypothetical: a 100-unit building that looks full and is not stabilized.

Hypothetical figures: a 100-unit apartment building has 92 units leased, so physical occupancy is 92%. But 20 of those leases were signed in the last two months with two months free, and collections over the last quarter equal 68% of the rent the building could produce at market. On those facts the building is still in lease-up: it passes a physical test and fails an economic one, and its trailing income understates what a stabilized year would show.

Lender counting rules make the gap sharper. The same agency guide counts a unit toward physical occupancy only when the tenant physically occupies it and has started paying rent, so the 20 tenants still in their free months would not count yet, and the building would measure 72% under that rule.

A buyer paying for stabilized income should price off what the building collects now and treat the rest as lease-up risk. Run your own numbers with your CPA and adviser.

It bites in DST eligibility and in your replacement deadline.

Rev. Rul. 2004-86 keeps a DST's interests like-kind only while its trustee cannot sign leases with new tenants, renegotiate existing leases or take in new capital. A trust that cannot lease up a building has to own one that is already leased or master-leased, so DST sponsors buy stabilized property; the master lease structure and its risks are in DST master lease risk.

For direct replacement property, section 1031(a)(3) gives you 45 days to identify and 180 days to close, as laid out in 45 days inside 180 days. A non-stabilized building can be a valid replacement, but its loan may be smaller or bridge-only, which can leave a gap your exchange equity must fill. Where the property sits on the risk spectrum is covered under core, core-plus, value-add and opportunistic.