Co-Tenancy Clauses: The Lease Provision That Can Multiply the Impact of Vacancy

Last Updated: June 2026
Read Time: 5-7 minutes
Author: Andrew Lofredo, CEO, CRE Vertical Advisors

This post is a drill down on Co-Tenancy clauses, which were mentioned in our recent Due Diligence Article.

A 15% occupancy loss should produce something close to a 15% revenue loss (if rents are close to uniform). In a retail property with active co-tenancy provisions, it can produce a 35% revenue loss instead, and the lease language that creates that gap is sitting in plain sight, but sometimes out of mind.

Co-tenancy clauses are a key component of your leasing strategy and decision-making process. Like a lot of lease provisions, they don't look dangerous on the page. They look like standard boilerplate, buried in the middle of a lease, written in language that sounds protective rather than threatening – or falls into one of those, it will never happen categories. But they are more than tenant accommodation. They're a contingent liability that activates the moment an anchor leaves (or in certain cases multiple tenants vacate, and a property hits a certain vacancy threshold) and many owners or their multiple advisors don't know the size of that liability until it's already triggered.

What a Co-Tenancy Clause Actually Does

At its simplest, a co-tenancy clause gives an inline tenant the right to reduced rent or in stronger versions, the right to terminate the lease entirely if certain occupancy conditions in the shopping center aren't met. The most common trigger is anchor occupancy: if a named anchor (or any anchor) vacates, or if total center occupancy falls below a specified threshold, the clause activates.

The mechanics vary by lease, but they typically fall into a few categories:

Opening co-tenancy. The tenant's obligation to open for business or to pay full rent is conditioned on certain other tenants or a minimum occupancy level being in place at the time the tenant is set to open. This protects a new tenant from opening into a half-empty center.

Operating co-tenancy. This version creates ongoing exposure. If occupancy or a named anchor's presence falls below the threshold after the tenant has already opened, the tenant gets rent relief often a percentage rent substitute, a fixed reduction, or in some versions, the right to terminate if the condition isn't cured within a specified period.

Named anchor vs. occupancy percentage. Some clauses are tied to a specific anchor by name ("if Anchor X vacates"). Others are tied to a percentage of gross leasable area being occupied, regardless of which tenants make up that percentage. A center can lose a non-anchor tenant and still trip a percentage-based clause if enough square footage goes dark at once.

The economic terms attached to a triggered clause range from a shift to percentage-only rent, to a flat reduction (often 50%), to full termination rights after a cure period, commonly six to twelve months, during which the landlord can backfill the vacancy or otherwise satisfy the condition.

How the Math Gets Ugly Fast

Here's the mechanism that makes co-tenancy dangerous: it's not isolated to the vacant space. It's contagious across the rent roll.

Picture a 100,000-square-foot center anchored by a 40,000-square-foot grocer, with the remaining 60,000 square feet leased to ten inline tenants. The anchor vacates. On its own, that's a 40% occupancy loss in dollar terms tied directly to the anchor's rent.

But if four of those ten inline tenants have operating co-tenancy clauses triggered by the anchor's departure, you're not just losing the anchor's rent - you're now also paying reduced rent, or facing termination notices, from tenants whose own space was never vacant. The anchor's exit becomes the inline tenants' financial event too. A single vacancy multiplies into a portfolio-wide income problem, and it does so contractually, automatically, with no negotiation required on the tenant's part.

How do Co-Tenancy Clauses Impact Due Diligence

In acquisition due diligence, co-tenancy review has to go well past noting that a clause exists. You should be able to answer the following questions:

●      Which tenants have co-tenancy rights, and what are the specific trigger conditions? A clause triggered by "any anchor" is materially different from one triggered only by a named, specific anchor.

●      What's the cure period, and what would it take to cure it? A 12-month cure period assumes you can re-tenant 60,000 square feet of grocery-anchor space in 12 months. In some markets, that's realistic. In others, it isn't, and the assumption needs to be tested against actual leasing velocity for that box size and use, not against the lease's stated timeline.

●      What's the economic exposure if every triggered clause activates simultaneously? This requires modeling the worst case explicitly, meaning - every co-tenancy clause tripped at once. The rent roll shows current income. It doesn't show this contingent liability unless someone builds the model.

●      Are co-tenancy rights triggered by the seller's own actions? If the seller is mid-negotiation with a struggling anchor, or if an anchor lease is approaching expiration with renewal uncertain, the co-tenancy exposure may already be live and simply not yet activated.

●      Is your exposure capped with a sunset provision? Many co-tenancy clauses (at least the well-drafted ones) have an expiration date for the reduced rent, where a tenant then must decide to either terminate the lease or go back to full rent. While you face the potential termination of the lease, you at a minimum, know that the reduced rent does not continue for the remaining lease term, allowing you to at some point get back to market rent (understanding that you will be subject to downtime and leasing costs, so still far from ideal).

This is just another critical reason to perform through lease abstracts It shows up only when someone reads every lease, cross-references every co-tenancy provision against every other tenant's space and anchor relationships, and models the downside scenario explicitly.

Why This Doesn't End at Closing

Co-tenancy exposure isn't a one-time diligence finding. It's a live asset management variable for the entire hold period, and it needs to be treated as one.

Anchor health monitoring should be a recurring task. An anchor that looked stable at acquisition can deteriorate over a five-year hold. After diligence, tracking anchor financial health, lease renewal timelines, and the broader market dynamics around use is now a permanent part of the asset management plan.

Leasing strategy must account for co-tenancy math. When backfilling an anchor vacancy, the question isn't only what rent a replacement tenant will pay, it's whether the replacement satisfies the co-tenancy conditions that triggered for everyone else. A replacement anchor at a lower rent that cures every triggered co-tenancy clause across the inline tenants may produce a better outcome than a higher-rent anchor that doesn't satisfy the use or size restrictions baked into those provisions. I stress the word “may” – the point is, you need to run all scenarios.

New leases need co-tenancy provisions reviewed with the existing tenant base in mind. Every new lease signed at the property changes the co-tenancy math for every existing tenant with a percentage-based clause. A leasing decision made without checking it against the full set of existing co-tenancy provisions can inadvertently trigger rent relief for tenants who were previously unaffected.

Budgeting and reserves should reflect the realistic cure timeline, not the lease's stated cure period. If the lease allows 12 months to cure and the market reality is 18, that gap is the carrying cost that needs to be funded.

The Strategic Bottom Line

Co-tenancy clauses exist for legitimate reasons - an inline tenant's business model often genuinely depends on anchor-driven traffic, and the clause is a reasonable response to that dependency. The issue isn't that the clauses exist. It's that their aggregate financial exposure is rarely modeled with the same rigor applied to the rest of the rent roll.

Diligence has to surface every co-tenancy provision and model the downside scenario in dollar terms, not just acknowledge the legal language exists. Asset management has to treat anchor health and co-tenancy exposure as an ongoing variable that gets monitored.

For advisors and asset managers, this is a matter of knowing exactly what the owner’s exposure is at all times and to have a strategy built around managing it.

This article is for general informational and educational purposes. Every retail property and lease portfolio is different, and the specific co-tenancy exposure for any property requires a detailed review of the actual lease language by qualified professionals. CRE Vertical Advisors works with owners through both acquisition due diligence and ongoing asset management, including identifying and actively managing co-tenancy exposure across the hold period. Contact us to discuss your portfolio.