Tenant Improvements and Betterments: Coverage Across Commercial, Condo, Renter, and Flood Policies

You spend thousands of dollars turning a raw commercial space into a functioning office, restaurant, or retail store. You upgrade the flooring in your condo, install custom cabinetry, and add built-in shelving. You paint your rental apartment, install ceiling fans, and build out a closet system. Then a fire, a flood, or a burst pipe destroys everything — and you discover that figuring out who pays for those improvements is one of the most confusing problems in insurance claims.

The term “tenant improvements and betterments” has a specific meaning in commercial property insurance, but the underlying problem — who insures improvements made to a building you do not own — crosses every policy type. This article covers how four different kinds of insurance policies handle the same fundamental question.

Commercial Property Policies (ISO CP 00 10): The Primary Context

The ISO Building and Personal Property Coverage Form (CP 00 10) is where the term “tenant's improvements and betterments” originates in modern insurance language. It is defined as a separate category of covered property — distinct from both the building and from Business Personal Property (BPP) — and it carries its own unique valuation rules that differ from anything else in the policy.

What Qualifies as Tenant Improvements and Betterments

Under the CP 00 10 form, tenant improvements and betterments are defined as fixtures, alterations, installations, or additions:

• Made a part of the building or structure you occupy
• Acquired at your expense (the tenant's expense) or at the expense of someone on your behalf
• That you cannot legally remove

Practical examples include: built-out interior walls and partitions, HVAC modifications, upgraded electrical or plumbing, custom flooring (tile, hardwood, polished concrete), built-in reception desks, commercial kitchen installations, bathroom buildouts, lighting systems permanently wired into the ceiling, and storefront modifications.

The key word is “made a part of the building.” Once an improvement is physically integrated into the structure — attached to walls, floors, ceilings, or permanent systems — it becomes part of the real property. The tenant cannot take it when the lease ends. It belongs to the landlord. But the tenant has an insurable interest in its continued use during the lease term.

What Is NOT an Improvement or Betterment: Trade Fixtures and BPP

Not everything a tenant installs in a commercial space qualifies as an improvement or betterment. Items that the tenant can remove at the end of the lease without damaging the building are classified as trade fixtures or simply Business Personal Property (BPP). These are covered under the personal property section of the policy, not under tenant improvements and betterments.

• Trade fixtures:Display cases, shelving units bolted to walls but removable, restaurant booths, dental chairs, salon stations — items installed for the business that can be taken out without structural damage.
• Machinery and equipment:Ovens, industrial equipment, computer servers, specialized refrigeration — items that sit in the space or are connected by hoses and plugs rather than permanently integrated.
• Furniture and fixtures:Desks, chairs, portable lighting, rugs — anything not permanently attached.

The distinction matters because BPP and trade fixtures are valued at their standard insured value (actual cash value or replacement cost, depending on the policy). Tenant improvements and betterments follow an entirely different — and often less favorable — valuation structure.

The “Use Interest” Concept

Here is the fundamental principle that drives everything about this coverage: the tenant does not own the building or the improvements that have become part of it. The landlord owns the physical improvements. But the tenant has a use interestin those improvements — the right to benefit from them for the duration of the lease.

This use interest is what the insurance policy protects. The tenant paid for a buildout that makes the space usable for their business. If that buildout is destroyed, the tenant loses the benefit of money already spent. The policy compensates for that loss of use — but only to the extent that remaining lease time justifies the value.

Valuation: The Three Scenarios

The CP 00 10 form provides three different valuation outcomes for damaged tenant improvements and betterments, depending on who repairs them and whether the loss is repaired at all. This is unlike any other property valuation in a standard policy.

Scenario 1: The Tenant Repairs or Replaces

If the tenant pays to repair or replace the improvements, the loss is valued at the actual cost of repair or replacement. This is the most favorable outcome for the tenant — full reimbursement of what it actually costs to rebuild the space. The policy pays what it costs to put those improvements back, subject to policy limits.

Scenario 2: The Landlord Repairs at No Cost to the Tenant

If the landlord repairs or replaces the improvements and does not charge the tenant for doing so, the policy pays nothing. The reasoning is that the tenant has suffered no loss — the improvements are restored and the tenant did not pay for the restoration. There is nothing to indemnify.

Scenario 3: Nobody Repairs (Proration)

If neither the tenant nor anyone else repairs the improvements, the loss is valued at a prorated amount. The policy takes the original cost of the improvements and prorates it over the remaining term of the lease (including renewal options if exercisable solely by the tenant). The formula is:

For example: A tenant spends $100,000 on a buildout at the start of a 10-year lease. A fire occurs in year 6, with 4 years remaining. If no one repairs the improvements, the policy pays $100,000 × (4 ÷ 10) = $40,000. The logic is that the tenant already consumed 6 years of use from the original investment, so only 4 years of value remain.

Why the Valuation Method Matters Practically

The three-scenario structure creates a strong incentive for the tenant to actually repair the improvements. If you repair, you get full replacement cost. If you walk away or let the landlord handle it for free, you get nothing or a prorated fraction. This is analogous to the replacement cost vs. actual cash value holdback in residential policies — the insurer withholds until you actually do the work.

In practice, this creates problems when a tenant cannot afford to front the repair costs, when the landlord and tenant disagree about who should repair, or when the lease is expiring soon and neither party wants to invest in restoration.

Coverage Limits and Policy Structure

Tenant improvements and betterments are typically listed on the commercial property declarations page with their own coverage limit — separate from the BPP limit. Some policies combine them with BPP under a single limit. The specific structure depends on how the policy was written and what the agent or broker selected at binding.

A common problem is underinsurance. A tenant who spent $250,000 on a buildout five years ago may have a policy with only $100,000 in tenant improvement coverage because nobody updated the limit when additional improvements were made. Unlike building coverage, there is no coinsurance penalty specific to improvements and betterments in most forms, but being underinsured still means the policy maxes out before the loss is fully covered.

HO-6 Condo Policies: Additions and Alterations (Coverage A)

Condominium owners face a version of the same problem, but the terminology and policy structure are different. Under the standard HO-6 policy, Coverage A is not “Dwelling” as it is on an HO-3 — it is Dwelling / Additions and Alterations. This coverage protects improvements, alterations, and additions made to the unit that are the unit owner's responsibility under the CC&Rs (Covenants, Conditions & Restrictions) or the association's bylaws.

The concept is similar to tenant improvements in commercial property: the condo owner does not own the common structure of the building (the HOA does, collectively), but the owner has an insurable interest in the interior improvements within their unit. The challenge is determining exactly where the HOA's master policy responsibility ends and the unit owner's HO-6 responsibility begins.

What the HO-6 Coverage A Protects

Coverage A on an HO-6 covers real property within the unit that is the owner's responsibility to insure. This typically includes:

• Upgrades the owner made beyond the unit's original “as-delivered” condition (upgraded countertops, custom cabinets, hardwood floors replacing original carpet, tile work, built-in bookshelves)
• Original fixtures and finishes within the unit that the CC&Rs assign to the unit owner (this depends entirely on the association's governing documents)
• Structural modifications within the unit (moved walls, expanded closets, added bathroom fixtures)
• Appliances, fixtures, and mechanical systems that serve only the individual unit (water heater, HVAC unit, built-in dishwasher) if the CC&Rs assign them to the owner

The CC&Rs Control Everything

Unlike a commercial lease where the tenant's insurance obligation is negotiated between two parties, a condo owner's insurance responsibility is dictated by the association's governing documents. The CC&Rs define what the master policy covers and what falls to the individual unit owner. These definitions vary enormously between associations — and they control how claims are handled regardless of what anyone assumes or remembers from the purchase.

“Studs In” vs. “Studs Out” vs. “All In”

The most important distinction in condo insurance is the type of coverage responsibility the CC&Rs establish. There are three common structures:

• “Studs out” (bare walls):The master policy covers only the structural shell of the building — the exterior walls, roof, common areas, and structural framing. Everything from the interior surface of the drywall inward is the unit owner's responsibility: drywall finish, paint, flooring, cabinets, fixtures, appliances, plumbing fixtures, interior doors. The unit owner needs substantial Coverage A on their HO-6.
• “Studs in” (single entity or original spec): The master policy covers the building includingall original fixtures, finishes, and improvements as they were when the unit was first sold. The unit owner's HO-6 Coverage A covers only upgrades and modifications made after the original purchase. If you never remodeled, your Coverage A exposure is minimal.
• “All in” (full coverage by master): The master policy covers everything including unit owner upgrades. This is rare and usually found only in high-end associations with correspondingly high HOA fees. Unit owners still carry HO-6 for personal property and liability, but Coverage A needs are minimal.

Common HO-6 Disputes Over Improvements

Even with clear CC&Rs, disputes arise regularly. The most common include:

• Upgraded cabinets and countertops:If the CC&Rs are “studs in” (original spec), the master policy covers cabinets and countertops as they were originally installed. But what about the $30,000 kitchen remodel the owner did in 2019? That upgrade is the owner's HO-6 claim. The master policy pays to restore the original-grade cabinets; the owner's Coverage A pays the difference to restore the upgraded version.
• Flooring:Original carpet was replaced with hardwood five years ago. The master policy (in a studs-in association) covers carpet replacement. The owner's HO-6 covers the upgrade cost from carpet to hardwood.
• Bathroom fixtures: The owner replaced a standard builder-grade bathtub with a freestanding soaking tub and custom tile surround. The master policy covers the original-spec fixtures; the owner covers the upgrade.
• Wiring and plumbing within walls:This is where it gets complicated. In many “studs out” associations, the unit owner is responsible for plumbing and wiring from the point it enters the unit. In “studs in” associations, the master policy covers original-spec systems. Know your CC&Rs.

For a deeper look at condo and HOA claim coordination, see our guide on condo and HOA claims.

Valuation Under the HO-6

Unlike the commercial policy's proration approach, the HO-6 values additions and alterations at replacement cost (if the policy includes a replacement cost endorsement, which most do) or actual cash value. There is no proration based on remaining association membership or ownership duration. The condo owner's interest is permanent — they own the unit indefinitely — so the time-based depreciation of a lease term does not apply.

This makes HO-6 improvements coverage generally more favorable to the insured than commercial tenant improvements coverage. If your upgraded kitchen is destroyed by a covered peril, the policy pays to replace it at today's cost (minus any depreciation holdback pending completion of repairs).

NFIP Flood Insurance: Tenant Improvements Under Coverage B

One of the most commonly overlooked sources of coverage for tenant improvements is the National Flood Insurance Program. Many people assume that flood insurance only covers the building structure for the building owner, and personal property for the occupant. But the NFIP specifically addresses improvements and betterments made by tenants — and it covers them in ways that surprise most policyholders.

How the NFIP Handles Improvements

Under an NFIP policy, building property coverage (Coverage A for residential, the building coverage for commercial) can include improvements and betterments that a tenant has made to the building. Specifically, the NFIP Standard Flood Insurance Policy defines covered building property to include “alterations, fixtures, and improvements that are a part of the insured building” — and this applies whether the policyholder is an owner or a tenant.

For residential tenants, improvements and betterments to the unit (such as installed flooring, built-in bookcases, or upgraded kitchen installations) may be covered under the building coverage portion of the policy. However, there are limits specific to tenant-occupied properties.

Coverage Limits for Tenant Improvements Under NFIP

The NFIP imposes different maximum coverage amounts depending on occupancy:

• Residential condominium unit owners: Up to $250,000 in building coverage (which includes additions and alterations within the unit) under the Residential Condominium Building Association Policy (RCBAP) or individual unit owner policies.
• Residential tenants: A residential tenant can purchase up to $100,000 in building coverage for improvements and betterments to their unit. This is separate from the $100,000 maximum in contents coverage.
• Commercial tenants: A non-residential tenant can purchase up to $500,000 in building coverage for improvements and betterments to the commercial space, separate from the $500,000 maximum for contents (business personal property).

NFIP Valuation of Improvements

The NFIP values all building property — including tenant improvements — at Replacement Cost Value (RCV)for single-family dwellings that are the insured's principal residence. For all other buildings (including commercial properties and non-primary residences), the valuation is Actual Cash Value (ACV), which means replacement cost minus depreciation.

This is important: a commercial tenant's flood-damaged improvements will be valued at ACV under the NFIP, with depreciation applied. A commercial tenant who installed a $200,000 buildout five years ago will not receive the full replacement cost from NFIP — they will receive the depreciated value. This is different from the commercial property policy's “actual cost of repair” valuation when the tenant actually makes the repairs.

For more detail on NFIP policies and how they interact with private flood coverage, see our article on NFIP vs. private flood insurance.

Renters Insurance (HO-4): Coverage C and the Improvements Gap

Standard renters insurance — the HO-4 policy form — is primarily a personal property and liability policy. Coverage C protects the tenant's belongings: furniture, clothing, electronics, kitchenware, and all the movable items in the unit. Coverage E provides personal liability. Coverage D provides Additional Living Expenses if the tenant is displaced by a covered loss.

But what about improvements? What if the tenant painted every room, installed new light fixtures, added ceiling fans, built custom shelving, or laid down new flooring with the landlord's permission? The answer is complicated — and often disappointing.

The General Rule: Permanent Improvements Are Not Contents

The HO-4 Coverage C is designed to cover personal property— items that belong to the tenant and that the tenant can take when they leave. Once an improvement becomes permanently attached to the building (and therefore legally becomes part of the landlord's real property), it no longer fits the definition of personal property. Under a strict reading, those improvements are not covered under Coverage C.

This creates a gap. The tenant paid for the improvement. The landlord's policy may cover the building, but the landlord has no obligation to restore tenant-funded upgrades beyond the lease's original condition. The tenant's HO-4 may not cover it because it is no longer personal property. So who pays?

The HO-4 Sublimit for Improvements

Recognizing this gap, the standard ISO HO-4 form includes a limited coverage extensionfor alterations, appliances, fixtures, and improvements that are part of the building and that the tenant acquired or made at their own expense. Under Coverage C — Additional Coverages, this extension typically provides a sublimit of 10% of the Coverage C limit for such improvements.

If a tenant carries $30,000 in personal property coverage, this means up to $3,000 for tenant-installed improvements. For a tenant who spent $500 on paint and a few light fixtures, this may be adequate. For a tenant who invested $15,000 in custom closets, flooring, and a bathroom upgrade, it is grossly insufficient.

Removable vs. Permanent: The Critical Distinction

The most important question for a renter is whether an installed item can be removed without damaging the building. This determines whether it is covered as personal property under the full Coverage C limit or falls under the improvement sublimit:

• Covered as personal property (full limit): Freestanding bookshelves, area rugs, curtains and rods (if removable without wall damage), plug-in appliances, portable dishwashers, window AC units, furniture
• Covered as improvements (10% sublimit): Installed flooring (tile, hardwood, glued-down carpet), built-in shelving that leaves wall damage if removed, ceiling fans wired into the electrical system, custom lighting hardwired in, bathroom upgrades (new vanity, tile surround)
• Gray area items: Removable backsplash tiles (peel-and-stick vs. mortared), wall-mounted TV brackets, smart home wiring, closet organizer systems (some screw into studs, some are tension-mounted)

For a broader comparison of how landlord and tenant policies work together, see our article on landlord vs. tenant claims.

Documenting Improvements Before a Loss

Across all policy types, the most common reason tenant improvements claims are underpaid or denied is lack of documentation. After a fire or flood destroys a commercial buildout, a condo renovation, or rental unit improvements, the insurer will want proof that the improvements existed, that the tenant paid for them, and what they cost. If you cannot prove it, you will not be paid for it.

What to Keep and Where

• Before and after photographs: Photograph the space in its original condition before you begin improvements. Then photograph the completed improvements from multiple angles. Store copies in cloud storage (not just on a phone that could be destroyed in the same loss).
• Receipts and invoices: Keep every invoice from contractors, materials suppliers, and permit fees. These prove both the cost and the existence of improvements. Digital copies in email or cloud storage survive a fire.
• Contracts and proposals: If you hired a contractor, keep the signed contract or proposal that describes the scope of work. This is often more detailed than a receipt alone.
• Permits: If your improvements required building permits, keep copies. Permits are also recorded with the local building department and can be retrieved after a loss.
• Lease provisions: Keep a copy of the lease clause that authorizes the improvements and describes who is responsible for insuring them.
• Property condition report:Many leases include a move-in condition checklist. Keep this — it proves what was original vs. what you added.

The Lease Provision Trap: Who Is Required to Insure?

In commercial real estate, the lease almost always includes insurance requirements for both parties. These requirements often create obligations that tenants fail to meet — and the consequences are devastating when a loss occurs.

Typical Lease Insurance Requirements

Most commercial leases include language requiring the tenant to carry insurance on their improvements and betterments. The typical provision reads something like:

If the lease says the tenant must insure their improvements and the tenant fails to obtain adequate coverage, the tenant is still on the hook for the loss. The landlord has no obligation to cover the tenant's buildout. The landlord's policy may specifically exclude tenant improvements. And the tenant signed a lease promising to carry the coverage.

The Mutual Waiver of Subrogation

Many commercial leases also include a mutual waiver of subrogationclause. This means that neither the landlord nor the tenant (nor their insurers) can pursue the other party for damages that are covered by insurance. The intent is to keep the landlord/tenant relationship out of insurance litigation — each party carries their own coverage and absorbs their own losses without suing each other.

The trap: if the tenant failed to carry the required insurance on their improvements, and the waiver of subrogation prevents them from recovering from the landlord or the landlord's insurer, the tenant has no source of recovery at all. They are uninsured by their own failure and blocked from suing by the lease.

NNN Leases and Improvement Responsibility

Triple-net (NNN) leases complicate things further. In a NNN lease, the tenant is often responsible for maintaining and insuring nearly everything about the property, including structural components. The line between “the building” and “tenant improvements” blurs significantly. A tenant on a NNN lease should carry coverage that addresses both the building and their improvements — and should understand precisely what the landlord's policy does and does not cover.

What Happens at Lease Expiration

When a commercial lease ends, improvements that have become part of the building typically revert to the landlord. The tenant walks away, and the buildout — whether it cost $50,000 or $500,000 — stays with the property. This is standard unless the lease specifically provides otherwise (some leases require the tenant to restore the space to its original “vanilla shell” condition, which creates its own set of problems).

But the insurance interest existed during the lease. If a covered loss destroyed the improvements while the tenant was in occupancy and paying rent, the tenant had an insurable interest at the time of the loss. The fact that the lease eventually ends does not eliminate the coverage — it only affects the proration calculation under Scenario 3 (when no one repairs).

Post-Loss Lease Decisions

When a commercial space is severely damaged, the tenant often faces a choice: stay and rebuild, or terminate the lease and leave. This decision has enormous insurance implications:

• If the tenant stays and rebuilds: The policy pays actual cost of repair (Scenario 1). The tenant gets full replacement of their improvements.
• If the tenant leaves: The policy pays the prorated amount based on remaining lease term (Scenario 3). If there is only 1 year left on a 10-year lease, the payment is 10% of the original cost.
• If the landlord cancels the lease after the loss:This is a more complex situation. If the lease includes a casualty termination clause (allowing either party to terminate if damage exceeds a certain percentage), the tenant may lose their occupancy right. The insurable interest at the time of loss still existed, but the remaining lease term may be calculated as zero — which results in zero payment under proration.

This is why commercial tenants need to understand the lease's casualty provisions alongside their insurance. A lease that gives the landlord unilateral power to terminate after a loss can effectively eliminate the tenant's recovery for improvements.

Practical Advice for Tenants Across All Policy Types

Regardless of whether you are a commercial tenant, a condo owner, or a residential renter, the following principles apply to protecting your investment in improvements:

For Commercial Tenants

• Match your coverage to your buildout cost. Get a specific limit for tenant improvements and betterments on your policy that reflects the actual replacement cost of everything you have installed. Update it every time you make additional improvements.
• Understand the three valuation scenarios. Know that you get full replacement only if you actually repair. If you walk away, you get prorated value at best.
• Negotiate lease provisions carefully. Push for the right to assign your insurance proceeds to rebuilding (not the landlord). Resist casualty termination clauses that let the landlord cancel your lease after a loss and wipe out your improvement interest.
• Carry Business Income coverage. Even if you recover the cost of your improvements, rebuilding takes time. Business income (loss of income) coverage protects you during the rebuild period.
• Classify items correctly. Do not lump trade fixtures in with improvements. Trade fixtures valued as BPP may get better valuation treatment (full replacement cost rather than proration).

For Condo Owners

• Read your CC&Rs and master policy.Determine whether your association is “studs in,” “studs out,” or “all in.” This determines how much Coverage A you need on your HO-6.
• Calculate your Coverage A need.Estimate the cost to rebuild the interior of your unit from the point where the master policy stops covering. If your association is “studs out,” this means drywall, paint, flooring, cabinets, countertops, plumbing fixtures, electrical fixtures, appliances, and every upgrade you have made. That number is often $100,000 to $200,000+ for a typical unit.
• Document every upgrade. Keep receipts and photos for every renovation. If you bought the unit from a previous owner who did a remodel, try to obtain the renovation history and costs. You are responsible for insuring it even if you did not personally do the work.
• Understand the loss assessment exposure. If the master policy has a high deductible and the association assesses unit owners for the shortfall, your HO-6 loss assessment coverage becomes critical. This is related but separate from your improvements coverage.

For Residential Renters

• Know the 10% sublimit. If your HO-4 provides 10% of Coverage C for improvements, calculate whether that is enough for what you have installed. If not, ask your insurer about increasing it.
• Prefer removable over permanent. When possible, choose improvements that can be removed without building damage. Floating floors instead of glued-down hardwood. Freestanding shelving instead of built-in. Removable wallpaper instead of permanent paint. These items are covered as personal property at the full limit rather than the improvement sublimit.
• Get landlord permission in writing. If the lease authorizes you to make improvements, keep that written permission. If the lease is silent or prohibits improvements, understand that you are making an uninsured investment.
• Photograph everything. Before, during, and after installation. Store copies outside the unit. If a fire destroys the unit, your phone with the only copies may be destroyed too.

Summary: How Each Policy Type Handles Improvements

When Multiple Policies Might Apply

In some loss scenarios, more than one policy could potentially cover the same tenant improvements. For example, a commercial tenant who suffers both fire and flood damage might have claims under their commercial property policy for the fire-damaged improvements and under their NFIP policy for the flood-damaged improvements. A condo owner might have overlapping coverage between the master policy and their HO-6.

The principles of indemnity prevent double recovery — you cannot collect twice for the same loss from two different policies. But you can — and should — pursue the policy that provides the most favorable valuation and recovery for your specific situation. In the condo context, the master policy may cover restoration to original spec while the HO-6 covers the upgrade cost above that. These are not overlapping — they cover different layers of the same loss.

For more on how commercial and residential claims differ in handling and approach, see our article on commercial vs. residential claims.

Common Mistakes in Tenant Improvement Claims

Whether you are filing a claim for destroyed improvements or helping a client with theirs, these are the errors that most frequently result in underpayment or denial:

• Failing to classify improvements separately from BPP:Lumping everything together as “contents” means the distinct valuation rules for improvements are never triggered. In some cases, separate classification is more favorable (commercial, full repair cost); in others (proration scenarios), it may be less favorable. Know which applies.
• Accepting proration when you intend to repair: If you are going to rebuild the space, insist on Scenario 1 valuation (actual cost of repair). Do not let the insurer pay the prorated amount and close the file before you have had time to arrange repairs.
• Not carrying enough coverage: The most common error across all policy types. Commercial tenants underestimate buildout costs. Condo owners carry $10,000 in Coverage A when they need $150,000. Renters rely on a $3,000 sublimit for $15,000 in improvements.
• Ignoring NFIP coverage for flood-damaged improvements: After a flood, tenants file for contents damage and miss the building coverage for their improvements entirely.
• No documentation of what existed: After a total loss, proving what improvements existed and what they cost becomes nearly impossible without pre-loss documentation. Insurers are not required to take your word for it.
• Letting the landlord repair without coordination:If the landlord repairs improvements at no cost to the tenant, the tenant's policy pays nothing (Scenario 2). This might seem fine until you realize the landlord restored to original spec, not to the upgraded condition the tenant had created.
• Forgetting about the lease termination clause:If the lease allows termination after a casualty and the landlord terminates, the remaining lease term for proration may be zero. This needs to be evaluated immediately after a loss — before the landlord makes the termination decision.

Key Takeaways

• Tenant improvements and betterments are fixtures, alterations, and installations made at the tenant's expense that become part of the building — they are distinct from removable trade fixtures and personal property.
• Under commercial policies, valuation depends entirely on what happens after the loss: repair gets full cost, no repair gets proration, landlord repair gets nothing.
• HO-6 condo policies cover additions and alterations under Coverage A, with the CC&Rs determining the line between the master policy and the unit owner's policy.
• NFIP flood insurance covers tenant improvements under building coverage — this is one of the most frequently overlooked coverages in flood claims.
• Standard HO-4 renters policies provide only a minimal sublimit (typically 10% of Coverage C) for permanent improvements — inadequate for anything beyond minor modifications.
• Documentation before a loss is critical: photos, receipts, contracts, permits, and lease provisions stored outside the insured premises.
• Commercial lease provisions often require tenants to insure their own improvements, and failure to do so can leave the tenant completely uninsured after a loss.
• Lease termination clauses can eliminate the tenant's recovery entirely by reducing the remaining lease term (and therefore the prorated value) to zero.

The underlying lesson across all policy types is the same: if you invest money in improving a space you do not own outright, you need to understand exactly which policy covers those improvements, at what valuation, and under what conditions. The time to figure this out is before the loss — not when you are standing in a flood-damaged restaurant or a burned-out condo trying to piece together coverage from policies you never read.