How Co-Tenancy Clauses Work in Commercial Leases

Co-tenancy clauses in commercial leases link a retail tenant’s rent obligations to the continued presence of anchor stores and the overall occupancy level of the shopping center. The logic is simple: an inline retailer’s sales depend on foot traffic generated by neighboring businesses, and when a major anchor closes or vacancies pile up, the tenant’s revenue falls through no fault of its own. A well-drafted co-tenancy clause shifts that risk back toward the landlord by giving the tenant the right to reduce rent, cease operations, or terminate the lease when occupancy conditions deteriorate.

Opening Versus Ongoing Requirements

Co-tenancy protections split by timing, and a strong lease addresses both.

Opening co-tenancy requirements set conditions that must be met before rent begins. A typical provision requires a minimum percentage of the center to be occupied and open on the tenant’s commencement date, or names specific anchors that must have opened their doors. If the developer falls short, the tenant can delay opening or defer rent. This matters when a retailer signs a lease a year or two before a project is finished and has no guarantee the center will be fully built out on schedule.

Ongoing requirements govern the rest of the lease term. They set a floor for occupancy and anchor presence that must hold throughout the life of the deal, and they give the tenant access to remedies if conditions deteriorate years later. In negotiation, a landlord who concedes strong opening protections often pushes back harder on ongoing terms. Tenants who focus only on opening conditions leave themselves exposed to mid-lease decline.

What a Co-Tenancy Clause Needs To Define

The strength of the clause depends on how precisely its terms are written. Vague language invites disputes. Four components do most of the work.

Occupancy Thresholds

Most clauses set a minimum percentage of the center’s gross leasable area that must be occupied and operating. Provisions commonly fall between 60% and 80% of total leasable square footage. The California Supreme Court examined a lease in late 2024 where the trigger was set at 60%, and thresholds in that range appear frequently in reported disputes. Set the number too low and the clause offers little practical protection; set it too high and landlords resist because the trigger fires too easily.

Named Anchors and Shadow Anchors

Beyond raw occupancy, clauses often name specific anchor tenants whose continued operation is required. A lease may list a national department store, a home improvement chain, or a major grocer by corporate name. These designations reflect that not all tenants generate equal foot traffic. Losing a 90,000-square-foot department store hurts surrounding retailers far more than losing a small specialty shop, even if the square footage impact on the occupancy percentage looks similar.

A related concept is the shadow anchor: a major retailer that sits on separately owned land adjacent to the center but operates as part of the same retail environment through shared parking and reciprocal access easements. Because the landlord doesn’t control a shadow anchor’s lease, the co-tenancy clause needs to address whether its closure counts as a triggering event. A clause that only references tenants within the landlord’s property leaves a gap when a traffic-driving shadow anchor goes away.

Replacement Tenant Criteria

One of the most litigated questions is what counts as an acceptable replacement for a departed anchor. If the clause simply says the landlord can substitute a “comparable” tenant, that word will mean different things to each side when a dispute hits. Stronger clauses use objective metrics. The replacement must occupy at least a specified percentage of the vacated space (often 90%), operate as a national or regional retailer with a minimum number of locations, and carry merchandise of comparable quality and price point. Some provisions also require the replacement lease to run for a minimum term, which prevents the landlord from curing with a pop-up or seasonal tenant that vanishes in six months.

GLA Measurement

How gross leasable area is calculated directly affects whether a threshold has been met. Well-drafted clauses specify what gets excluded from the denominator. Common exclusions include the tenant’s own premises (so the tenant’s own space doesn’t count toward the threshold protecting it), common areas like hallways and restrooms, management offices, and outlot pads. Referencing a recognized industry measurement standard reduces the chance of disagreement over how square footage was counted.

What Triggers the Protection

A co-tenancy violation occurs when conditions at the center fall below what the lease requires. Triggers fall into three categories.

The first is a named anchor going dark. The retailer closes its doors to the public but continues paying rent under its own lease. From the landlord’s financial perspective the anchor is still performing, but for surrounding tenants who rely on that store’s customer traffic, a dark anchor is nearly as damaging as an empty one. The clause protects against the loss of activity, not just the loss of a tenant.

The second is a general occupancy drop below the GLA threshold. This usually happens gradually as several smaller tenants leave over months, hollowing out the center even if the anchors remain open.

The third is a combined trigger: both a named anchor departure and a simultaneous drop below the overall occupancy floor. Landlords push for combined triggers because they narrow the circumstances under which tenants can act. Tenants push for independent triggers so that either event alone activates protection.

Remedies Available to the Tenant

When a trigger occurs and persists through the cure period, remedies become available and generally escalate over time.

Substitute Rent

The immediate remedy in most clauses is a switch from fixed base rent to a percentage of the tenant’s gross sales. This keeps rent proportional to actual revenue, which will have dropped along with foot traffic. In one California case that reached the state supreme court, substitute rent was set at 3.5% of gross sales or a minimum dollar floor, whichever was greater. The specific percentage and any floor amount vary widely and are heavily negotiated. Some provisions also reduce or eliminate common area maintenance charges and other additional rent during the failure.

The Right To Go Dark

Some clauses give the tenant the right to cease operations entirely while the violation continues. This lets the tenant cut staffing and overhead rather than operating at a loss in a half-empty center. Landlords sometimes offer this remedy because the tenant typically remains liable for rent even while dark. There is a cascading risk: one tenant going dark can push occupancy further below the threshold, triggering additional co-tenancy violations for other tenants.

Termination

If the violation persists long enough, many clauses let the tenant terminate the lease entirely. Landlords resist this remedy, and it typically becomes available only after an extended period. Six months appears to be a common minimum in reported cases, with many leases requiring 12 months or longer, especially for larger spaces. The tenant usually must exercise the termination right within a defined window after the waiting period expires, and failure to act within that window can extinguish the right entirely.

No Stacking

Leases commonly prohibit tenants from combining multiple co-tenancy remedies at the same time. A tenant paying substitute rent cannot simultaneously go dark and stop paying rent altogether. The clause may allow switching between remedies over time, but not stacking them.

The Landlord’s Cure Period and Pushback

Before any remedy takes effect, the landlord gets time to fix the problem. Cure periods typically run between 90 and 180 days, and sometimes longer for larger anchor spaces that are harder to re-lease. Once a qualifying replacement signs a lease and opens, the landlord notifies affected tenants that the condition has been cured, and original rent obligations resume. The friction point is whether the replacement actually qualifies under the lease’s criteria.

Sophisticated landlords also build in limiting mechanisms that tenants should recognize during negotiation:

  • Conditions on the tenant, such as a requirement that the tenant not be in default and be open and operating when it invokes a remedy. Some landlords also make the co-tenancy right personal to the original tenant and non-transferable to an assignee.
  • A sales decline requirement, obligating the tenant to show an actual drop in sales during the violation compared to a baseline period. This prevents a tenant whose sales are unaffected from using the clause as pure leverage.
  • Sunset provisions requiring the tenant to return to full rent after a set period (often 12 months) if the violation hasn’t been cured and the tenant hasn’t terminated.
  • Sole remedy language making the co-tenancy remedies the tenant’s exclusive recourse for a violation, blocking breach-of-lease damages or other claims.
  • Broad replacement definitions that let a wider range of tenants satisfy the requirement, making cure easier and faster.

A recapture right can also appear as a landlord backstop. If a violation persists and the tenant chooses to pay reduced rent indefinitely rather than terminate, the landlord may reclaim the space and re-lease it. The result is mutual pressure: the tenant can’t sit on substitute rent forever, and the landlord can’t ignore vacancies without losing tenants.

The Continuous Operations Conflict

Many retail leases also contain a continuous operations clause requiring the tenant to keep the store open throughout the term. That creates a direct conflict with the go-dark remedy. If the co-tenancy clause gives the tenant the right to cease operations when occupancy drops, but the continuous operations clause requires the tenant to stay open, the tenant faces contradictory obligations.

The fix is to make sure the co-tenancy clause expressly overrides the continuous operations requirement during a co-tenancy failure. If the lease doesn’t address this, a landlord may argue that going dark under one clause triggers a default under the other. Tenants who negotiate a go-dark remedy without cross-referencing the continuous operations language are building protection they may not be able to use.

Force Majeure and Government-Ordered Closures

The COVID-19 pandemic exposed a gap in many clauses. Government-mandated closures forced anchors to shutter, triggering co-tenancy failures that landlords had no ability to cure. A Kansas federal court addressed this in a dispute between a landlord and Michaels Stores, holding that the co-tenancy provision and the force majeure clause were independent. The court noted the co-tenancy provision contained no condition requiring the tenant to be open and operating before claiming reduced rent, and that the same economic conditions forcing the anchor to close were also harming the tenant that relied on the anchor’s traffic.

Post-pandemic clauses should specifically address whether government-ordered closures, natural disasters, or other force majeure events pause the co-tenancy clock. Landlords want these events excluded from triggers so they aren’t penalized for circumstances beyond their control. Tenants argue the economic harm is the same regardless of cause. How the lease answers this question can decide whether the clause provides meaningful protection during the next disruption.

Lender Approval and SNDAs

A co-tenancy clause negotiated between landlord and tenant can still be undermined by the landlord’s lender. Commercial mortgages typically require lender approval before material lease modifications. A subordination, non-disturbance, and attornment agreement (an SNDA) establishes priority between the lender’s mortgage and the tenant’s lease, and standard SNDA language often states that the lender is not bound by any lease amendment made without its written consent.

Routine items like confirming commencement dates are usually exempt, but amendments affecting rent amounts or granting termination rights generally require lender sign-off. A co-tenancy clause that lets the tenant cut rent or walk away directly impacts the lender’s collateral. If the landlord granted protections without lender consent and the lender later forecloses, the new owner may argue those protections are unenforceable. Tenants with significant co-tenancy rights should confirm the provisions were in place when the lease was originally executed and that the SNDA acknowledges them.

Notice Procedures Decide Whether the Clause Works

The most common way tenants lose co-tenancy protections is by missing the procedural requirements buried in the fine print. Nearly every clause requires written notice to the landlord within a specific window after a triggering event, and missing that deadline can waive the right to reduced rent or termination entirely.

Industry sample provisions show how tight these windows can be. One requires the tenant to exercise a termination right within 60 days after a 12-month cure period expires. Another gives the tenant only 15 days to respond to a landlord’s termination notice. A tenant that isn’t actively monitoring occupancy and anchor status at the center may not realize a trigger has even occurred until the notice window has closed.

The practical response is straightforward. Track occupancy and anchor status continuously, not just when things look bad. Calendar every deadline in the clause. Send notices by the method the lease specifies, whether certified mail, overnight delivery, or both. Keep copies of everything. The first argument a landlord will raise in a dispute is that the tenant didn’t follow the notice procedure correctly, and a tenant who can’t disprove that argument loses the protection no matter how strong the underlying violation was.