A sublease is an agreement in which an existing tenant rents all or part of its leased space to a third party while the original lease remains in force between that tenant and the landlord. That last clause is the whole story. A sublease moves occupancy and cash flow to someone else; in most cases it does not move the risk. You are still the tenant on the head lease, and if your subtenant stops paying, the landlord sends the demand letter to you.
That distinction matters because subleasing is usually a response to a decision that already went wrong — the site underperformed, the co-tenancy unraveled, the trade area shifted. The question is not whether subleasing is possible. It is whether the recovery you can realistically achieve beats the alternatives, and what the market’s appetite for your space tells you about the location you chose.
Subleasing re-lets your space to a subtenant while you stay on the hook to the landlord — it transfers cash flow, not liability. An assignment transfers the lease itself and is the cleaner exit, but only with a written release. Nearly every retail lease requires landlord consent, and many give the landlord the right to recapture the space instead. Price the space to what the market will actually pay, then compare the net carry against a lease buyout. Terms vary by lease and jurisdiction.
What Is the Difference Between a Sublease and an Assignment?
In a sublease you keep your lease and re-let the space to a subtenant who pays you; in an assignment you transfer the entire lease to a new tenant who steps into your shoes with the landlord. Subleasing leaves you in the middle of the chain as a sublandlord. Assignment removes you from the chain — but only if the landlord signs a release, which is a separate negotiation from the assignment itself.
There is a third outcome tenants often forget to plan for. Many leases give the landlord a recapture right: when you ask for consent to sublet, the landlord can instead take the space back and terminate that portion of your lease. Sometimes that is exactly what you want. Sometimes it hands the landlord a below-market space at your expense and the timing is theirs, not yours.
| Route | Who holds the lease | Your liability after | Best when |
|---|---|---|---|
| Sublease | You do | Full, typically | Market rent is below yours, or you want part of the space back later |
| Assignment | The assignee | Full unless released in writing | A credible tenant will take the whole lease at or near your rent |
| Buyout / termination | Nobody — it ends | None after the settlement | The negotiated sum is less than the shortfall you would carry |
| Landlord recapture | The landlord | Depends on the clause | The landlord has a better use and you want out cleanly |
Who Is Liable in a Sublease?
The original tenant almost always remains liable to the landlord for rent and every other lease covenant, even after a subtenant takes occupancy. Your subtenant owes you; you still owe the landlord. If they default, go dark, or trash the buildout, the landlord’s claim runs against you and, if you signed one, against your personal or corporate guaranty.
That is why the subtenant’s credit deserves the same scrutiny a landlord would apply to you. Underwrite them properly: financials, operating history, a security deposit sized to the cost of re-tenanting, and a guaranty where the covenant is thin. You are now a landlord, with a landlord’s exposure and none of a landlord’s leverage.
- Mirror the head lease in the sublease so the subtenant cannot do something that puts you in default.
- Take a deposit that covers downtime plus restoration, not just one month’s rent.
- Keep a direct cure right so you can step in before a subtenant breach becomes your breach.
- Confirm insurance certificates name you and the landlord as additional insureds.
Do You Need Landlord Approval to Sublease?
In nearly every commercial retail lease, yes — prior written consent is required, and the consent process is where most sublease plans stall. The critical question is whether your lease says consent “shall not be unreasonably withheld, conditioned, or delayed.” Without that language, a landlord can often say no for reasons that have nothing to do with your proposed subtenant. Terms vary by lease and jurisdiction, so read yours and take legal advice before relying on any general rule.
The time to win this fight is at signing, not at exit. When you are negotiating the LOI and lease, the sublease clause is worth as much attention as the rent. Ask for reasonable-consent language, a response deadline of fifteen to thirty days with deemed approval if the landlord goes silent, a cap on the landlord’s legal-review fee, pre-approved transfers to affiliates and franchisees, and a carve-out so recapture does not apply to a partial sublease.
Use clauses and exclusives shrink your subtenant pool
Two clauses quietly decide how sublettable your space is. A narrow use clausein your own lease restricts what a subtenant may operate there. Other tenants’ exclusive-use rightsin the same center block whole categories — the coffee exclusive, the quick-service exclusive, the fitness exclusive. Together they can cut your realistic buyer pool by more than half before you list the space. Map both before you set a price, so you are marketing to the uses that can actually sign.
Model Your Recovery Before You List
Put your real numbers into the calculator below: months remaining, your monthly obligation, the rent a subtenant would credibly pay, how long the space sits empty first, and what it costs to market and demise it. It returns total recovery over the remaining term, the shortfall you still fund each month, your recovery rate, and whether a buyout would cost less than carrying the gap.
Your remaining obligation
Drag or type. Everything recalculates as you change it.
A buyout at $126,000 costs less than the $245,000 you would still carry through a sublease, and it ends the liability instead of transferring only the cash flow.
A Worked Example: 42 Months Left on a Site That Missed
Assume a 2,400 sq ft inline unit with 42 months remaining at $14,000 per month all-in. Comparable space in the center is transacting around $10,500 per month, you expect six months of downtime, and demising, legal, and marketing costs run $35,000.
- Total obligation: 42 × $14,000 = $588,000.
- Paying months: 42 − 6 = 36.
- Gross sublease income: 36 × $10,500 = $378,000.
- Net recovery: $378,000 − $35,000 = $343,000, a 58% recovery rate.
- Shortfall you still carry: $245,000, or roughly $5,830 per month.
Now price the alternative. If the landlord will settle for nine months’ rent — $126,000 — the buyout is dramatically cheaper than the $245,000 gap, and it ends the liability rather than stretching it out. If the landlord wants twenty-four months, $336,000, subleasing wins on cost even though you keep the risk. The comparison is arithmetic, not instinct, and it flips on the landlord’s number.
The most expensive mistake in a soft market is listing your sublease at your own rent because that is the number on your P&L. Every month of overpricing is a full month of rent you pay with nothing coming in. If the market clears at 75% of your rent, six months of holding out costs more than the discount would have over a year. Price to transact.
What an Unsubleasable Space Is Telling You
If no operator will take your space at anywhere near your rent, that is market-tested evidence about the trade area, not just about your brand. A sublease listing is the cleanest demand signal you will ever get for a location: dozens of operators with their own models look at the same corner and decline it. Treat that as data and feed it back into your next site decision.
The specific reads worth extracting: whether the co-tenancy that justified the deal has eroded, whether daytime or residential population shifted away from the node, whether your rent was set at the top of a cycle that has since turned, and whether the site was ever right for your format. Each of those is testable before you sign the next lease rather than after. Our guides to trade area analysis and relocating or closing a store cover how to run that diagnosis across a portfolio.
This is the part most brands skip. They execute the sublease, book the loss, and sign the next deal using the same instincts that produced the first one. At Locate we underwrite candidate sites to forecast revenue rather than raw foot traffic, precisely because the visits number rarely explains why a site failed to convert. If you are working through an exit and a next site at the same time, talk to our team— the analysis and the brokerage execution sit under one roof, so the lesson from the bad site actually shapes the next one.
Sublease, Assign, or Buy Out
Run all three routes as numbers before you commit to one. Assign when a credible tenant will take the lease at or near your rent and the landlord will release you. Sublease when market rent is meaningfully below yours and the carried shortfall is smaller than what the landlord wants to let you go. Buy out when the settlement price is less than the gap you would fund anyway, because ending the liability is worth real money. And whichever you choose, make the sublease clause a negotiated item in your next leasing strategyinstead of boilerplate you read for the first time under pressure. Terms vary by lease and jurisdiction — use counsel for the documents and a broker for the pricing.
Common Questions
- What is a sublease?
- A sublease is an agreement in which an existing tenant rents all or part of its leased space to a third party while the original lease stays in force between that tenant and the landlord. The original tenant becomes a sublandlord: it collects rent from the subtenant and continues paying the landlord. Because the head lease does not go away, a sublease transfers occupancy and cash flow rather than ending the tenant's obligations.
- Can you sublease commercial space?
- Usually yes, but almost never freely. Most commercial retail leases permit subleasing only with the landlord's prior written consent, and many add conditions such as use restrictions, a share of any profit rent, or the landlord's right to recapture the space instead of approving your subtenant. Read the assignment and subletting clause before you market anything, and note that terms vary by lease and jurisdiction.
- What is the difference between a sublease and an assignment?
- In a sublease you keep your lease and re-let the space to a subtenant who answers to you. In an assignment you transfer the entire lease to a new tenant who steps into your position with the landlord. An assignment is the cleaner exit, but only if the landlord also releases you from liability; without that release you remain a guarantor of a lease you no longer control.
- Do you need landlord approval to sublease?
- In nearly all commercial retail leases, yes. The standard clause requires prior written consent, and whether the landlord can refuse for any reason at all depends on whether the lease says consent will not be unreasonably withheld. That single phrase, ideally with a response deadline attached, is one of the most valuable things to negotiate at signing rather than when you need it.
- Who is liable in a sublease?
- The original tenant almost always remains liable to the landlord for rent and lease performance, even after a subtenant moves in. If the subtenant stops paying or damages the space, the landlord looks to you, not to them. That is the defining risk of subleasing: it moves cash flow, not liability, unless you obtain a written release from the landlord.