Guides
Tenant improvements and betterments: who insures them
Who insures a leased build-out depends on who paid, who owns it and what the lease says. How the ISO form values improvements and betterments.
When a tenant pays for a build-out in a building it does not own, the tenant insures its right to use that work under its own business personal property coverage, and the landlord insures the building itself. Which of them pays for what after a fire turns on three facts: who paid for the work, who owns it under the lease, and how the policy values improvements and betterments. A tenant who assumes the landlord's policy covers the build-out, or a landlord who assumes the tenant's does, can find out otherwise at the worst time.
What counts as an improvement or betterment
The ISO commercial property form, CP 00 10, includes in Your Business Personal Property the tenant's use interest in improvements and betterments. It defines them as fixtures, alterations, installations or additions that are made a part of the building you occupy but do not own, and that you acquired or made at your expense but cannot legally remove. Three categories sit side by side, and the line between them is where disputes start:
| Category | Examples | Who normally insures it |
|---|---|---|
| Building and permanently installed fixtures | Structure, roof, base-building systems, permanently installed machinery and equipment | Building owner |
| Tenant improvements and betterments | Partitions, ceilings, flooring, lighting, built-in millwork, plumbing and electrical added for your use | Tenant, to the extent of its use interest |
| Trade fixtures and business personal property | Shelving, display cases, furniture, equipment you can remove | Tenant |
Trade fixtures are removable and belong to the tenant, so they are ordinary business personal property. Improvements that cannot be removed without damage, or that become the landlord's property when installed under the lease, are the contested middle category. Policy language varies, and businessowners and package forms differ, so read how your form defines and values them. (A glossary entry has the short definition.)
How the standard form values them
The word "use interest" matters. A tenant that does not own the work can insure only what it loses by being unable to use it. The ISO valuation condition for tenants' improvements and betterments pays on three tracks:
- If you repair or replace promptly at your expense: replacement cost, without deduction for depreciation.
- If you do not repair promptly: a proportion of your original cost, found by multiplying the original cost by the days from the loss to the end of the lease, then dividing by the days from installation to the end of the lease. If the lease has a renewal option, the end of the renewal period replaces the end of the lease in that formula.
- If others pay for the repair or replacement: nothing.
The third track is the overlap rule. A landlord who rebuilds the space at its own expense, under its own policy, removes the tenant's claim for the same work.
A hypothetical example
Say a dental practice spends $400,000 building out leased space on a 10-year lease. Five years in, a fire destroys the build-out.
| Scenario | What the tenant's policy pays |
|---|---|
| The practice rebuilds promptly at its own expense | Replacement cost, up to the limit, perhaps more than the original $400,000 |
| The practice does not rebuild promptly | $400,000 × (5 years left ÷ 10 years total) = $200,000 |
| The landlord's insurer pays for the rebuild | $0 |
The numbers are invented, but the mechanism is real. A tenant who delays, loses the lease or relies on the landlord's policy can see the value fall to a fraction. A tenant late in the term with a renewal option has a reason to read the lease and the endorsement together.
What the lease decides
The lease allocates the work more than the policy does. The common arrangements look different on paper:
- Tenant-funded build-out, tenant owns during the term. The tenant insures the improvements, often required at full replacement cost, and the landlord requires evidence of coverage.
- Tenant-funded, landlord owns on installation. Ownership shifts to the landlord, but the lease still makes the tenant responsible to insure and restore. This is where both parties insure the same work and the overlap rule applies.
- Landlord-funded allowance or turnkey work. The landlord paid, so the landlord's building coverage usually picks it up, often limited to what the landlord's policy defines as the building.
- Triple-net leases. The tenant may insure the entire building, improvements included, in the landlord's name. That is a different coverage question than a use interest.
A landlord's building coverage generally includes completed additions and permanently installed fixtures, so improvements that have become part of the building can fall under it regardless of who paid. Both policies can respond. The result, if they do, is a dispute between insurers over "other insurance" and a waiver of subrogation request in the lease. See waiver of subrogation: what it is and when contracts require it and insurance requirements in commercial leases for the clauses landlords typically write.
Commercial condominium units
A condominium unit owner faces a version of the same question. ISO's CP 00 18, Condominium Commercial Unit-Owners Coverage Form, is the unit-owner form, and the association's form, CP 00 17, covers improvements and betterments inside a unit only if the governing documents require the association to insure them. Read the declaration and bylaws to see which items the association insures and which are yours. The Condo and HOA insurance profile covers the association side.
Setting the limit
A common error is to carry a limit that reflects last year's furniture and equipment, not the cost of building the space. Work through this list when you set or review the limit:
- Gather the contractor's invoices and any landlord reimbursements.
- Include partitions, ceilings, flooring, lighting, electrical, plumbing, HVAC added for the space, cabling, storefront, millwork and signage attached to the building, if they are yours to insure.
- Ask your broker whether design and permit fees count toward the replacement cost of the improvements, and whether extra expense coverage handles temporary space while you rebuild.
- Value at current replacement cost, since a rebuild costs more than the original build-out. insurance to value: setting the right building limit explains why undervaluing weakens every claim.
- Put the amount where the coinsurance clause will count it. Improvements are part of the business personal property values the the coinsurance clause and how underinsurance is penalized tests.
Business income depends on how fast you can reopen, and a build-out can take months of permits and trade work. business interruption insurance: how business income coverage works shows how the restoration period is measured. Code upgrades are another gap: the tenant does not own the building, so ordinance or law coverage: paying for code upgrades after a loss is mostly the owner's purchase, but the lease may make you pay for upgrades in your space.
Before you sign or renew
- Read the lease sections on alterations, ownership of improvements, restoration, insurance and casualty. Mark who must insure the improvements and at what value.
- Ask the landlord for its insurance summary so you know what it covers and what it excludes.
- Confirm with your broker how your policy defines and values improvements and betterments.
- Check that your limit reflects current replacement cost of the build-out.
- Reconcile the lease's waiver of subrogation and additional insured terms with the policy.
- Re-run the numbers after any expansion or renovation.
Key takeaways
- A tenant insures its use interest in improvements it paid for and cannot remove; the landlord insures the building.
- The ISO valuation condition pays replacement cost if you repair promptly, a time-weighted share of original cost if you do not, and nothing if others pay.
- The lease decides who owns and who must insure the build-out, and both sides may insure the same work.
- Size the limit from invoices and current replacement cost, not last year's equipment values.
- Read the lease and the policy together before a loss, since they pull in different directions.