The vacancy provision is not an exclusion. It is a condition inside the loss conditions of your property form, it measures the building rather than your intentions, and it does two separate things once it applies. This page is about the words themselves — where they sit, what they test, and why yours may differ from a neighboring state’s.
It is a condition, and that is why nobody finds it
Owners look for vacancy among the exclusions, because that is where they expect coverage to be taken away. It is not there.
On the standard commercial property policy it lives in the loss conditions of the ISO Building and Personal Property Coverage Form, CP 00 10, under its own heading. Nothing about it appears on the declarations page, no premium line names it, and no schedule refers to it. It is a condition on how the coverage you already bought behaves in a particular state of the building, which is a different mechanism from an exclusion and a much quieter one.
That structural point matters more than it sounds. An exclusion tells you at purchase that something is not covered. A condition tells you nothing at purchase and changes the answer later, on facts that develop after the policy is issued. Commercial property coverage is the wider anatomy this provision sits inside; the provision itself is the subject here.
Vacant and unoccupied are two words, and the difference is old
The statutory fire policies that legislatures printed into their own code suspend coverage while a described building is vacant or unoccupied. Two words, two states of affairs: unoccupied generally meant nobody was living or working there while the contents remained, vacant meant the building was empty of both people and property.
The modern commercial form abandoned that pair. It defines vacancy alone, and it defines it functionally — by reference to how much of the building is in customary use — rather than by whether furniture remains. Both approaches are alive in the market at once, which is why an owner cannot reason from a general description of “the vacancy clause” to what their own policy says. There are at least two grammars in circulation, and yours is whichever one the form and the state supply.
The definition splits on who you are, and lessors get the harder half
This is the part that matters most to an owner who leases a building out, and it is the part almost never explained.
The form asks a different question depending on whether the policy is a tenant’s or a building owner’s. For a tenant, the test is essentially whether the space contains enough business personal property to conduct customary operations. For a building owner, the test is about square footage: whether a stated share of the building’s total area is both rented to a tenant and used by that tenant to conduct its customary operations.
Read the conjunction. A lease that is current, rent that arrives on time and a floor that has been dark for months satisfies the first half and fails the second. An owner reviewing a rent roll sees a let building. The form is asking a question the rent roll does not answer, and it is asking it about the building as a whole rather than about any single tenancy. That is the specific gap this provision opens for a lessor’s risk placement, and it does not exist in the same shape for an owner-occupier.
Two consequences, and the second one is the surprise
Once the condition applies, the policy changes in two independent ways.
First, a named list of causes of loss is deleted outright. The list is short and it is precisely the set of things that happen in empty buildings — vandalism, sprinkler leakage where the system is not protected against freezing, breakage of building glass, water damage, theft and attempted theft. Not reduced. Gone.
Second, payment for any other covered cause of loss is reduced by the share the form states. This is the half owners do not expect, because it reaches losses that have nothing to do with the building being empty. A windstorm does not care whether your tenant moved out; the settlement does.
The reduction applies to the claim as a whole rather than to some vacant portion of it, and it stacks with your deductible rather than replacing it. One condition, two mechanisms, and neither of them announces itself.
Real-World Scenario: An owner holds a two-tenant commercial building. One tenant vacates at the end of a term but continues paying under a lease that still has time to run, because moving cost less than breaking it. The owner regards the building as fully let and says so at renewal, in good faith, because that is what the rent roll shows. A storm then damages the roof and water reaches the occupied side. The claim has nothing to do with the empty half — the wind found the roof, not the vacancy. But the form’s test was never about the lease, and a building that had not been in customary use across enough of its area for long enough now meets the condition. The settlement on a straightforward storm loss comes back reduced, and the owner learns the definition from the adjuster’s letter.
Why the day count is not a national number
There is no single figure to publish here, and any page that gives you one is quoting somebody else’s state.
In some states the governing sentence is an act of the legislature rather than a carrier’s drafting choice, printed into the insurance code and binding on every policy issued there. Pennsylvania is the plainest case: its printed policy withdraws the coverages it names once a building “is vacant or unoccupied beyond a period of sixty consecutive days” — Section 506 of the Insurance Company Law of 1921, 40 P.S. § 636, reproduced with its citation on the Pennsylvania hub. Two buildings a mile apart, insured by different carriers, are tested by the identical sentence.
A second group mandates standard provisions without printing them where the public can read them. New Jersey is the clearest instance: the statute requires standard fire policy provisions, and the state’s own online statutory record does not reproduce the policy text at all — so the words are law and are not retrievable from the state’s primary source. We say so on the New Jersey hub rather than filling the gap from a secondary summary, and the statutory database is where that ends.
In a third group our reading of the insurance code did not locate a provision written around an empty building at all. That is a statement about how far our research reached, not a finding that the state has none — and we record it that way, as on the South Dakota hub, where the whole of Title 58 of the state’s codified laws was searched and the disclosed limit recorded. The practical consequence for an owner is the same in every case: the governing sentence is in your own form, and you have to read it there.
Renovation is not occupancy, and storage usually is not either
Two situations regularly convince owners that a building cannot be vacant when the form says otherwise.
A building under construction or renovation is generally treated separately — the form usually carves out a building being built or rebuilt from the vacancy consequence, but that carve-out has edges, and an empty building where work has stalled is not obviously inside it. If a project is paused, that is worth a call rather than an assumption.
Storage is the other one. Leaving furniture, stock or equipment in a space feels like keeping it in use, and under the older unoccupied wording it might have mattered. Under a test built on customary operations, property sitting in a room where nobody operates is not doing the work an owner hopes it is doing.
The two endorsements that change the sentence
The provision is not immovable, and there are two distinct standard routes — they solve different problems and owners frequently ask for the wrong one.
The Vacancy Permit, CP 04 50, suspends the consequence for an agreed stretch while the building is empty, generally in exchange for conditions about the state of the building. It is the instrument for a known, bounded vacancy, and carriers commonly reserve the right to carve certain causes of loss back out of it.
The Vacancy Changes endorsement, CP 04 60, edits the definition itself rather than suspending the outcome. That is the one that matters where a building is partly let and the ordinary square-footage test does not fit the way it is used.
Both are ordinary underwriting requests while a building is occupied and something else entirely afterward. What an owner should actually do, and in what order, is set out in vacancy on your own terms; this page is the reason those steps exist.
What the condition reaches beyond the building
The last thing to understand about this provision is that it does not stay on the property coverage.
Business income and loss of rents answers lost rental income where covered physical damage has taken the space out of use. If the vacancy condition has deleted the cause of loss, there is no covered physical loss underneath the income claim. If it has reduced the property payment, the income side inherits a damaged foundation. One condition, two coverages, and the interaction is worked through in how loss of rents actually pays.
It also lands unevenly by property type. It is the defining condition on office buildings, where space empties a floor at a time and stays empty longest; it behaves more subtly in retail, where one dark unit sits inside a building that looks entirely alive. The Insurance Information Institute carries the general property-line background, and each state’s regulator can be reached through the National Association of Insurance Commissioners.
If you do not know which grammar your own form uses, that is a short answer rather than a project — send the declarations page and the form number and it can be read off directly.