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What insurance do you need to lease a flex or warehouse space?

By the ScaleUp principals — 90+ combined years in construction, industrial operations & finance Published August 24, 2026 6 min read
McKinney Flex Park drive aisle at dusk with lit showroom fronts on small-bay flex and retail units in McKinney, Texas

You need commercial general liability, property coverage on your own equipment and finish-out, and workers' compensation if you have employees, and the landlord wants all of it endorsed and on a certificate before you get keys. The clause that says so reads like boilerplate near the back of the lease, and it decides who pays when something burns.

Most first-time commercial tenants meet the requirement about three weeks before delivery, when someone asks for a certificate of insurance and the policy on file is the home-business rider from the garage days. That policy will not clear.

What insurance does a flex space landlord require you to carry?

Four coverages show up in almost every small-bay flex lease: commercial general liability, property coverage on your business personal property and your improvements, workers' compensation if you have employees, and commercial auto if vehicles run out of the bay. Business interruption gets added when the landlord wants rent to keep flowing whether or not you can operate.

CoverageWhat it pays forCommon requirement
Commercial general liabilityInjury and property damage to third parties from your operations$1,000,000 per occurrence, $2,000,000 aggregate
Business personal propertyYour inventory, racking, tools, and equipmentReplacement cost of what you moved in
Tenant improvements and bettermentsThe finish-out you paid to installReplacement cost of your build-out
Workers' compensationEmployee injury on siteStatutory limits, if you have employees
Business interruptionRent and payroll while the space is unusable6 to 12 months of fixed costs
Commercial autoVehicles and trailers operating out of the unit$1,000,000 combined single limit

Texas is one of the few states where private employers can go without workers' compensation, and your lease can still require it, so read the clause rather than assuming state law settles it. Our flex space lease checklist covers where that clause sits among the other things worth verifying before signature. ScaleUp's required limits and certificate deadline are [[CONFIRM: ScaleUp's required tenant insurance limits and certificate deadline]].

Does the insurance in your NNN charges already cover you?

No, because the insurance line billed to you under a triple-net lease is the landlord's property policy on the building, and it pays the landlord. It insures the shell, the roof, the structure, and the landlord's liability in the common areas. Your inventory, your racking, your tools, and your income are not on it. A fire that starts in your bay gets the building repaired by that policy, and then the carrier looks at whoever caused the loss to get its money back, which is the whole reason the waiver of subrogation below exists. What a NNN lease actually bills you for walks through the three Ns line by line.

Who insures the finish-out you paid for?

You do in almost every lease, under the part of a commercial property policy called tenant improvements and betterments. The landlord's policy insures the building it delivered, so the office walls, the mezzanine, the compressor drop, the extra lighting, and the epoxy floor you paid for are yours to cover. Tenants who buy a contents-only policy find the gap after the loss, when the adjuster asks which of the burned items were fixtures.

Two clauses decide this. The definition of the premises tells you where the landlord's insurable interest stops and yours starts, and the clause on whether improvements become the landlord's property on installation changes nothing about who insures them during the term. Insure to what you spent installing the work.

What do "additional insured" and "waiver of subrogation" actually do?

Additional insured is an endorsement that puts the landlord under your liability policy for claims arising out of your use of the space, and a waiver of subrogation stops your carrier from suing the landlord after a covered loss, usually on a mutual basis so the landlord's carrier cannot come after you either. Both are endorsements to the policy itself. A certificate holder is neither, and it only means the landlord gets mailed a copy.

Ask your agent for both when the policy is bound, since they usually cost little or nothing at that point. Adding them after a certificate gets rejected costs a week of back and forth three days before delivery.

What moves the price of a small-bay tenant's policy?

Your use class moves the premium more than your square footage does. Welding, spray finishing, commercial cooking, and any use with customers walking in the front door rate differently from pallet storage in the same 2,000 SF box. If the use is hard to place, your agent goes outside the admitted market to surplus lines carriers, and Texas charges a premium tax of 4.85 percent of taxable premiums on those policies, per the Texas Comptroller, which lands on your invoice on top of the premium itself.

Your neighbors rate too. We lease across eight tenant categories on purpose and hold any one sector to roughly a fifth of the building, so auto services, distribution, showroom and creative, food and beverage, light manufacturing, gyms and recreation, e-commerce, and trade contractors end up sharing demising walls. That mix keeps a park leased through a slow year, and an underwriter will ask about it, so get the signed uses in your building from the landlord before you take a quote to market. Rockwall Flex Park sits in the Rockwall ETJ where no city zoning sets the use mix, which leaves the permitted-use clause and the insurance clause drawing the line. Our units are [[CONFIRM: sprinkler status at Rockwall and McKinney]] and built as [[CONFIRM: construction type as it appears on an insurance application]], and a carrier asks for both by name.

Timing catches pre-construction tenants. Rockwall Flex Park delivers Summer 2027 and McKinney Flex Park is in design and permitting for December 2027, so a lease signed today has a certificate due at delivery rather than at signature. The named insured on it has to be the entity on the lease, which is worth checking if you plan to form a new company between signing and rent commencement.

Before you send the lease to your agent: pull the insurance clause, the definition of the premises, and the permitted-use clause, and send all three together. An agent quoting off the use description alone will miss the improvements and the endorsements.

FAQ

Does the insurance I pay for in a NNN lease cover my business?

No, because the insurance line billed to you under a triple-net lease is the landlord's property policy on the building, and it pays the landlord. It insures the shell, the roof, the structure, and the landlord's liability in the common areas, so your inventory, your racking, your tools, and your income are not on it and have to be covered by a policy you buy yourself.

Who insures the finish-out a tenant paid to install?

The tenant does in almost every lease, under the part of a commercial property policy called tenant improvements and betterments. The landlord's policy insures the building it delivered, so the office walls, the mezzanine, the compressor drop, and the epoxy floor you paid for are yours to insure at what you spent to install them.

What is the difference between additional insured and certificate holder?

Additional insured is an endorsement that puts the landlord under your liability policy for claims arising out of your use of the space, and certificate holder only means the landlord gets mailed a copy of the certificate. Ask your agent for the additional insured endorsement and the waiver of subrogation when the policy is bound, because adding them after a certificate gets rejected costs a week you will not have before delivery.

Want the insurance clause before you commit?

Tell us your use and we will send the insurance requirements with the rate sheet, so your agent can quote it early. See the Rockwall and McKinney units and what each one delivers.

Ask about a unit