A certificate of insurance is evidence, not coverage. It tells a landlord that a policy existed on the day it was issued and gives them nothing else. If the lease requires the landlord to be protected under your policy, that takes an endorsement, and the endorsement has blanks in it that decide whether it works at all.
Almost every studio and gym owner meets this the same way: an email from a leasing office asking for a certificate, forwarded to a broker, resolved in a day, never thought about again. It is one of the few routine tasks in a lease where the routine version and the correct version can quietly diverge.
The email from the leasing office is asking two things at once
Read the request carefully and it usually contains two separate demands wearing one sentence.
The first is evidentiary: show us you are insured, and show us the limits. The second is substantive: make us an insured under your policy. Those are answered by completely different instruments, and the first cannot deliver the second no matter how it is filled out.
The reason they get conflated is that both arrive through the same channel — a broker sends a document, the leasing office files it, the lease file looks complete. What nobody checks in that exchange is whether the policy was actually changed. Our page on general liability covers what that policy does for a facility on its own terms; this post is about who else gets to stand behind it.
What a certificate is, and what it plainly is not
A certificate summarizes what is in force at the moment it was printed. Lines of coverage, limits, policy numbers, dates. It exists because commercial counterparties need a quick way to confirm insurance without reading a policy.
What it does not do is amend anything. It creates no rights for the person holding it, imposes no obligation on the insurer toward them, and does not freeze the policy in the state it describes. Coverage can be changed the week after a certificate is issued, and the certificate simply becomes a description of something that no longer exists in that form.
The most useful way to think about it: a certificate reports on a policy the way a receipt reports on a purchase. The receipt is real, it is evidence, and it is not the thing itself. A landlord listed as a certificate holder has been told about your insurance. They have not been given anything by it.
The endorsement is the thing that changes who is insured
To actually put a landlord under your policy takes an endorsement — a document that attaches to the policy and modifies it.
For a leased premises, the endorsement ordinarily used is CG 20 11 04 13, titled Additional Insured — Managers or Lessors of Premises. It amends Section II, Who Is An Insured, to include the person or organization shown in its Schedule as an additional insured. That is the operative change: the definition of who counts as insured is enlarged.
The enlargement is not unlimited, and the limiting phrase is the part worth reading slowly. The endorsement includes the scheduled party only with respect to liability arising out of the ownership, maintenance or use of that part of the premises leased to you and shown in the Schedule. Everything the landlord gets flows through that clause. Liability connected to your leased space, yes. The landlord’s unrelated activities elsewhere, no.
Two blanks, and both of them have to be filled
Here is the detail that decides whether any of it works, and the one owners almost never see.
The endorsement is scheduled on both axes. It has a Schedule with room for the person or organization being added and room for the designation of the premises. Both entries do the work, and each one independently governs the outcome. An unnamed landlord gets nothing — the endorsement extends coverage to who is shown, and a party who is not shown is not shown. An undesignated premises is just as fatal, because the grant is expressly limited to liability arising out of the part of the premises leased to you and shown in the Schedule.
This is why generic reassurance is not enough. “We added your landlord” is a statement about one axis. The question worth asking your broker is what both entries actually say — the exact legal name of the entity in the lease, and the premises described the way the lease describes it. A studio that moved units within the same building, took on adjoining space, or signed with an entity whose name differs slightly from the property manager’s trade name has a real reason to check.
What the endorsement will not stretch to
Two exclusions ride along with this endorsement, and both are worth knowing before you rely on it.
The first is temporal. It does not apply to any occurrence that takes place after you cease to be a tenant in that premises. Once the lease ends and you are out, the grant does not follow the landlord forward. Owners who close a location and assume the paperwork is still doing something for anyone are working from a mistaken picture.
The second is about construction. The endorsement does not apply to structural alterations, new construction, or demolition operations performed by or on behalf of the scheduled person or organization. If the landlord is having work done, that activity is outside what your policy was extended to cover for them. This matters more than it sounds like it should for fitness tenants, because build-outs, rig anchoring, and unit reconfigurations are common and the work is often ordered by the landlord.
Real-World Scenario: A studio takes a second unit next door, knocks through, and expands its floor. The broker had the landlord added as an additional insured when the original lease was signed, and everyone considers the file settled. A visitor is hurt in the new half of the space. The endorsement is in place, the organization is named correctly — and the premises designation still describes only the original unit. The instrument is real. The description underneath it aged out with the floor plan.
Only to the extent permitted by law, and never broader than the contract
There is a further pair of limits printed in the endorsement itself, and they behave like a ceiling over everything above.
Coverage for the additional insured applies only to the extent permitted by law. Where a contract requires you to add someone, the insurance afforded to that party will not be broader than that which you are required by the contract or agreement to provide. In plain terms: the endorsement measures itself against the obligation you signed up to. It does not hand a landlord more protection than the lease asked for, even if the endorsement wording read in isolation might seem to.
That cuts both directions, and it is a good reason to read the lease before the certificate request arrives rather than after. The insurance clause is the document setting the ceiling. If it is vague, what the landlord ends up with may be vaguer than either party assumed.
Adding an insured does not add limits
This is the point that changes how owners think about the whole exercise once it lands.
Adding a party to your policy does not create a second policy for them. It brings them inside the one you have, and everyone inside shares the limits that were already there. A serious claim that involves both the tenant and the landlord draws both defenses and both indemnities from the same limit — which can leave you with less available for yourself than you would have had alone.
That is precisely why lease clauses so often pair an additional-insured requirement with a limit requirement, and why umbrella liability shows up in this conversation so regularly. If you are going to share a limit, the height of it becomes a live question rather than a formality. It is also worth separating this from your own property exposure entirely: your build-out, racks, and equipment are answered by commercial property coverage, which has nothing to do with who is named on the liability policy.
Other relationships need other paperwork
Landlords are the common case for a fitness tenant, but they are not the only party who asks.
Franchisors, municipalities where you run an outdoor session, event hosts, and corporate clients whose staff you serve on their site can all ask to be added, and the arrangements used for those relationships are not this one. They differ in what triggers the coverage, what activity it attaches to, and whether it reaches completed work. The functional question is always the same — what activity of yours does this party want protection for — but the instrument that answers it changes with the answer.
The practical instruction is to send the actual clause to whoever places your coverage, not a summary of it. Two requests that read alike in an email routinely require different documents. Facilities running group formats off-site, or studios hosting workshops in borrowed space, hit this more often than a single-location gym does.
Read the clause before you sign, not when the request arrives
Most of the trouble in this area is timing rather than knowledge.
The insurance clause of a commercial lease is negotiable at signing and effectively fixed afterward. Once you have signed a clause requiring limits, endorsements, and notice provisions, your only remaining question is whether your program can meet it — and finding out that it cannot, or cannot affordably, is a poor discovery to make with a lease already executed. Have the clause read against a real policy before the signature, alongside everything else that shapes the placement. Our gym insurance cost guide covers the broader drivers, and state pages cover the regulatory picture where you operate.
Then keep it current. When you move units, expand, rename the entity, or renew under a new landlord, the Schedule needs to move with you. That is the maintenance nobody schedules and everybody needs.
Where to get the actual wording
You will not find the endorsement text on a public web page, and that is deliberate rather than an oversight.
These are proprietary industry forms. They are licensed to insurers and distributed through insurance channels, which is why this post names the form and quotes the operative language rather than linking you somewhere to read it. What you can do — and should — is ask for the endorsement as it will actually attach to your policy, with the Schedule completed, and read those two entries against your lease. A copy pulled off the open internet may be a different edition with different wording, which is worse than not checking at all.
That reading is a normal part of the work on our side, alongside the signed member paperwork and everything else a facility owner is expected to keep straight. If a leasing office has sent you a request and you are not certain what it is really asking for, send us the clause and the policy and we will tell you which of the two documents you actually need — and why we work this way.