Co-Tenancy

Co-Tenancy Clauses: How They Protect Tenants and How to Track Them

Updated June 2026

A co-tenancy clause is one of the most valuable protections a tenant can negotiate — and one of the easiest to let lapse. It is worth nothing if no one at your company notices the trigger or acts inside the window. The anchor going dark is a public event; the relief it entitles you to is not. Nothing arrives in your inbox the day an anchor closes. The rent reduction, the alternative rent, the right to walk — all of it sits behind a notice you have to send, on a clock you have to be watching.

This guide covers what a co-tenancy clause is, how opening and ongoing co-tenancy differ, the remedies they trigger, and how multi-location operators keep them from quietly expiring.

What a co-tenancy clause is

A co-tenancy clause ties your rent — and sometimes your obligation to operate at all — to the presence of other tenants at the property. The logic is straightforward: you signed at this center because of who else was there. The anchor draws traffic. A full center draws traffic. If that foot traffic disappears because key neighbors leave, your sales suffer through no fault of your own, and a co-tenancy clause is what compensates you for it.

Practically, the clause names a condition about the rest of the property and a remedy that kicks in when the condition fails. The condition is almost always one of two kinds — and most strong leases include both.

Opening co-tenancy

Opening co-tenancy sets conditions that must be satisfied before you are obligated to open your doors or pay full rent. The classic version: the named anchor must be open and operating on the day you are scheduled to open, and some percentage of the center must be leased and occupied.

If those conditions are not met, you get relief from the start — you may delay opening, or open and pay a reduced or alternative rent until the conditions are satisfied. Opening co-tenancy protects you from the worst-case scenario: building out an expensive space, opening into a half-empty center, and paying full rent against a fraction of the traffic you underwrote.

Ongoing co-tenancy

Ongoing co-tenancy applies for the rest of the term, after you have opened. It usually has two parts:

• A named anchor. A specific tenant — often the grocery store, the big-box retailer, or the theater that anchors the center — must remain open and operating.
• An occupancy threshold. A minimum share of the property's gross leasable area must remain open. A common figure is at least 70 percent of the GLA, though the number is negotiated and varies widely.

If the named anchor goes dark, or occupancy drops below the threshold, the ongoing co-tenancy condition is violated and your relief begins. This is the provision that matters most across a long lease term, because anchors close and centers empty out years after you signed.

The triggers that set it in motion

A co-tenancy violation is an event at the property, not a date in your lease. That distinction is the whole reason these clauses get missed. The triggers are:

• The named anchor closes or goes dark. Even a temporary closure can trigger the clause, depending on the language.
• Occupancy falls below the threshold. Enough other tenants leave that the center drops under the negotiated percentage of leased and operating GLA.
• A combination. Many clauses require both the anchor to be open and the occupancy floor to be met, so failing either one triggers relief.

None of these show up as a deadline when you read your own lease. They depend on what is happening two doors down, which is why a co-tenancy clause has to be tracked against the property, not just filed with the document.

The remedies, in escalating order

Co-tenancy remedies are structured as a ladder. The landlord gets a chance to fix the problem; the tenant's relief grows the longer it goes unfixed. A typical structure looks like this:

The middle tier is where the real money sits. The alternative rent is frequently a percentage of your sales — say, a set percentage of gross sales in place of base rent — which directly ties what you pay to the diminished traffic you are actually getting. That can be a substantial reduction during a period when an anchor sits empty.

The top tier — termination or the right to go dark — is the nuclear option. It usually requires the condition to persist for an extended period, but it gives you a clean exit from a center that has lost its draw, instead of being locked into full rent for years.

The exact figures, the length of each period, and whether the alternative rent is a flat reduction or a percentage of sales are all negotiated. What stays constant is the shape: the longer the violation runs uncured, the more relief you are entitled to — if you claim it.

Why co-tenancy clauses are easy to miss

The failure mode is specific and common. The clause works perfectly, the anchor closes, and the relief never gets claimed because nobody connected the event at the property to the right in the lease.

This happens for a few reasons:

• The trigger is external. Your renewal options and CAM reconciliations are at least driven by dates and documents you control. A co-tenancy trigger is someone else's business closing. No date in your file moves when it happens.
• The clock starts silently. The cure period and the longer termination window run from the violation date. If you notice the anchor closure three months late, you have burned three months of relief you could have collected.
• It requires action, not just awareness. Most clauses require you to send written notice to claim relief. Knowing the anchor closed is not enough — the rent does not drop on its own. You have to calculate the relief and send the notice the lease requires.
• It overlaps with other rights. Co-tenancy often sits near your exclusive use clause and kick-out provisions in the lease, and the interactions are easy to lose track of across a portfolio of differently worded leases.

The cost of missing it is rarely a fee. It is months of full rent paid against a center that should have entitled you to reduced or alternative rent — or a location you stayed locked into when you had a right to leave.

A tracking checklist

Treating a co-tenancy clause as something you read once is what gets it missed. Treating it as a live obligation tied to the property is what makes it pay off. For each location with a co-tenancy provision, monitor:

• Anchor status. Is each named anchor open and operating? A closure anywhere in your portfolio should surface against the leases that name it.
• Occupancy percentage. Track the property's occupied GLA against your threshold — for example, whether it has dropped below at least 70 percent leased and operating.
• The cure-period clock. When a violation occurs, start the clock immediately. Know the date the cure period ends and the date the termination right matures.
• The relief calculation. Have the reduced rent or alternative-rent formula ready so you know exactly what you should be paying the moment relief begins.
• The notice you must send. Identify the written notice the clause requires, who it goes to, and the deadline — then send it. The relief is only as good as the notice that claims it.

A short table of remedy tiers in your file is useful. A live record of anchor status, occupancy, and the clock is what actually protects you.

Tracking it across a portfolio

At one location, a diligent operator can watch the anchor and remember the clause. Across 50 or 300 locations, that does not scale — every center has a different anchor, a different occupancy threshold, a different cure period, and a different relief formula, written in different language. The trigger is an event somewhere in the world, not a date you control, so the only way to catch it reliably is to have the co-tenancy terms structured and watched alongside every other lease obligation.

That is the case for tracking co-tenancy triggers, the cure-period clock, and the relief window as obligations across every location. Nova Foundry pulls each co-tenancy provision out of the lease — the named anchor, the occupancy threshold, the remedy ladder, and the notice requirement — and tracks it as a live obligation, so a violation surfaces with the clock already running and the relief already calculated, instead of months after the anchor went dark.

Where to start

You do not need to abstract every co-tenancy clause at once. Start with your highest-rent locations in centers where an anchor or occupancy is already shaky — those are where a missed trigger costs the most. Get the named anchor, the threshold, and the relief formula into a tracked record with an owner. Then expand to the rest of the portfolio. The goal is the same at twenty locations or three hundred: when an anchor closes, you should be the one starting the clock — not finding out the relief window already closed.