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Commercial Lease Reviews: Why Rent Commencement Matters Before You Sign

A man signing a commercial lease agreement

Many business owners enter into a commercial lease with a straightforward assumption. Once the lease is signed, they expect a limited, manageable gap between signing and revenue-generating activities, thereby limiting their exposure to unrecoverable expenses.

Unfortunately, that assumption often runs into the practical realities of refitting a space for a business that requires specialized facilities. A space may technically be leased before it is ready to operate, leaving the tenant paying rent on a location that cannot yet support the business it was intended to house.

This is one of the most common and expensive mistakes in commercial leasing. It is also one of the most avoidable. The solution is not complicated, but it must be negotiated and included in the lease before the agreement is signed.

Lease Commencement Vs. Rent Commencement

One of the most important distinctions in a commercial lease is the difference between the lease commencement date and the rent commencement date. Many tenants assume these terms refer to the same event, but they do not necessarily have to.

The lease commencement date is the date the lease becomes legally active. From that point forward, the lease term may begin to run, the tenant may take possession of the premises, and certain obligations such as insurance, maintenance responsibilities, or compliance requirements may become effective.

The rent commencement date is the date the tenant’s obligation to pay rent begins. In many standard commercial leases, the lease commencement date and rent commencement date are identical. The tenant signs the lease, takes possession, and rent starts immediately, regardless of whether the space is ready for business operations.

For any tenant completing a significant build-out, these dates should usually be separated. A restaurant waiting on kitchen installation, for example, or a retail tenant waiting on permits may not be able to open simply because the lease has started.

The lease should specify that rent commencement is tied to a defined triggering event. This may include substantial completion of tenant improvements, issuance of a certificate of occupancy, delivery of the premises in an agreed-upon condition, or a set number of days after the landlord completes its required work.

This is a negotiable aspect of the lease term. Landlords understand that a tenant taking a raw or unfinished space may need time before the business can operate. The problem is that the tenant has to request that protection, and the language must be included in the agreement.

Rent Abatement And Deferral

Rent abatement is the formal term for a period during which the tenant’s rent obligation is reduced or eliminated. In commercial build-out scenarios, rent abatement is often used to give the tenant time to prepare the space before full rent becomes due.

The type of abatement stipulated in the agreement needs to be carefully analyzed during the negotiation stage. Some tenants believe they have received several months of free rent, only to later learn that the rent was not waived at all. It was deferred.

True rent abatement means the rent for that period is forgiven. The tenant does not owe it later, and it does not become due if the business encounters difficulty during the lease term.

Deferred rent, meanwhile, allows the landlord to delay collection for a period, but not necessarily eliminate the need to pay it entirely. The lease may state, for example, that the deferred amount becomes due if the tenant defaults on the terms or fails to satisfy certain lease conditions.

The important caveat about deferred vs. abated rent can be buried in language that appears harmless at signing. A tenant may believe three months of rent were waived when, in reality, those three months become a financial obligation if anything goes wrong later.

A commercial lease agreement

Other Lease Terms That Create Similar Problems

The build-out and rent commencement issue is often the most expensive surprise, but it’s far from the only provision that can catch tenants off guard. Commercial leases contain several terms that may appear routine yet create serious financial exposure over time. If you are reviewing your own agreement, make sure to look for the following lease stipulations:

Common Area Maintenance

Many commercial leases allow landlords to pass through costs for shared areas, property maintenance, landscaping, parking lots, roof work, and other building expenses. Without an annual cap or clear limits, a major repair or improvement can produce a sudden increase in the tenant’s operating expenses.

Personal Guarantees

Many landlords require the business owner to personally guarantee the lease, which means the owner may remain personally liable if the business fails or cannot continue paying rent. In some cases, the guarantee can be limited in amount, shortened in duration, or structured to burn off after a period of on-time payments.

Assignment & Subletting Provisions

A tenant who outgrows the space or has another reason to exit the lease early may depend on the ability to assign the lease or sublet the premises. If the lease allows the landlord to withhold consent in its sole discretion, the tenant may be effectively locked into the full lease term with no practical way out.

Default & Cure Provisions

Commercial tenants generally do not receive the same protections as residential tenants, so the lease itself governs what happens after a missed payment or alleged breach. If the lease does not provide a reasonable cure period, a small mistake can quickly escalate into default, termination, or litigation.

Why An Attorney Should Always Review A Commercial Lease Before Signing

A commercial lease is usually drafted by the landlord’s attorney. This is done so that the document protects the landlord’s interests first, which is standard in both residential and commercial real estate.

The tenant is often asked to sign a lengthy agreement containing provisions that will govern one of the largest operating expenses the business will carry. Over a three-, five-, ten-, or fifteen-year term, seemingly inconsequential lease terms can compound into substantial financial consequences.

An attorney reviewing the commercial lease on the tenant’s behalf can identify any significant financial or liability pitfalls that may come back to haunt the tenant later. The review can, for example, help ensure that the tenant isn’t stuck with unpayable debts if a build-out takes longer than expected and that they can successfully extricate themselves from the lease if the need arises later.

That review serves as a practical financial safeguard for the tenant, similar to how the initial agreement is structured in the landlord’s interest. A few thousand dollars spent reviewing a lease before signing may prevent tens of thousands of dollars in rent exposure and personal liability.

Protecting The Business Before The Lease Begins

A commercial lease represents a substantial financial commitment. It’s substantial enough that it may represent the business’s biggest single commitment, making it especially dangerous to blindly enter into a legal agreement that stipulates its terms.

Villasenor Law Offices reviews commercial leases for San Diego business owners and helps identify provisions that may create avoidable financial risk. If you are negotiating a lease, preparing to sign one, or unsure whether the rent commencement and build-out language protects your business, you should conduct a legal review before you commit.

Disclaimer: The content of this website or any blog is for information or educational purposes only. Nothing on this website or blog should be considered legal advice for any individual case or matter. This information is not intended to create, and receipt or viewing does not constitute, an attorney-client relationship.

FAQ’s


  1. What is the difference between lease commencement and rent commencement?

The lease commencement date is when the lease becomes legally active, and the tenant takes possession of the space. The rent commencement date is when the obligation to pay rent begins. In many standard commercial leases, these dates are the same, but tenants doing a significant build-out should negotiate to separate them so that rent doesn’t begin until the space is actually usable. This is typically tied to substantial completion of tenant improvements or issuance of a certificate of occupancy.


  1. What is rent abatement in a commercial lease?

Rent abatement is a period during which the tenant’s rent obligation is reduced or eliminated, often to accommodate a build-out or construction period. The important distinction is whether the abatement is structured as a true waiver, in which the rent is never owed, or as deferred rent, in which the abated amount becomes payable if the tenant defaults or terminates the lease early. An attorney can identify which structure the lease contains before signing.


  1. Why should a business owner have an attorney review a commercial lease?

A commercial lease is drafted by the landlord’s attorney to protect the landlord’s interests. An attorney reviewing the lease on the tenant’s behalf identifies provisions that create financial risk — rent commencement triggers that don’t account for build-out timelines, personal guarantee exposure, CAM charges without annual caps, and default provisions without adequate cure periods. The cost of a lease review is a fraction of what a single unfavorable provision can cost over the life of the lease.

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