NNN Basics
Absolute NNN Vs Double Net
Not all net leases labeled “NNN” are actually structured the same way — and the gap between a standard triple net lease, a double net lease, and an absolute triple net lease comes down to one thing that surprises a lot of first-time buyers: who’s responsible for the roof and structure.
Before comparing these lease structures, it’s helpful to understand the broader net lease spectrum. Our guide What Is a Net Lease? explains the differences between single net, double net, triple net, and absolute net leases.
Key takeaways
- The “NNN” label alone doesn’t tell you who’s responsible for roof and structure.
- Double net (NN) leases usually leave structural repairs with the landlord.
- Absolute NNN shifts even roof, structure, and capital repairs to the tenant.
- A single roof replacement can run into six figures and erode returns if it lands with the landlord.
- Always confirm the actual expense responsibility section of the lease, not the marketing summary.
Quick recap: the net lease spectrum
- Single Net (N): Tenant pays property taxes only.
- Double Net (NN): Tenant pays property taxes and insurance.
- Absolute Triple Net (NNN): Tenant pays everything above, plus roof, structure, and often capital repairs.
If you’re new to commercial real estate terminology, our article NNN Lease Meaning Explained explains exactly what “NNN” stands for and why it’s one of the most common lease structures in the industry.
Double net (NN): where the landlord still has a role
In a double net lease, the tenant covers taxes and insurance, but the landlord typically retains responsibility for structural repairs and maintenance — most importantly, the roof and the building’s structural elements. This means an NN landlord isn’t fully passive: a major roof failure or structural issue can become the landlord’s expense.
Double net leases are common in multi-tenant properties, where it often makes more practical sense for the landlord to manage major structural systems across the shared building rather than dividing that responsibility among several tenants.
Absolute NNN: zero landlord responsibility
An absolute triple net lease goes further than a standard NNN lease by shifting even roof and structural responsibility to the tenant, sometimes including capital repairs and replacement of major building systems over the life of the lease. This is the most landlord-passive lease structure in commercial real estate: the tenant is responsible for essentially every cost associated with the building.
Absolute NNN leases are most common with investment-grade, single-tenant retail and QSR properties on long-term leases (15–20+ years), where the tenant wants full control over the building for the duration of their occupancy.
Because absolute NNN leases place nearly all property-related responsibilities on the tenant, they’re often considered the closest thing to “mailbox money” in commercial real estate. Learn more in Mailbox Money Real Estate Explained.
Simple rule: The more of the roof, structure, and capital repairs the tenant carries, the more landlord-passive the deal actually is — regardless of what the listing calls it.
Why the distinction matters so much
This is one of the most consequential — and easiest to overlook — details in an NNN offering memorandum. Two properties can both be marketed simply as “NNN” while carrying very different landlord risk:
| Expense | Double Net (NN) | Absolute NNN |
|---|---|---|
| Taxes | Tenant pays | Tenant pays |
| Insurance | Tenant pays | Tenant pays |
| CAM / maintenance | Often shared or landlord | Tenant pays |
| Roof & structure | Landlord pays | Tenant pays |
| Capital repairs | Landlord pays | Tenant pays |
| Landlord passivity | Moderate | Maximum |
A roof replacement can run into six figures on a larger single-tenant building. If that expense sits with the landlord in a lease marketed loosely as “NNN,” it can significantly erode returns in a way the advertised cap rate never accounted for.
Before purchasing any property marketed as an absolute NNN investment, it’s important to confirm the lease terms. Our guide How to Analyze an NNN Deal explains how to verify expense responsibilities during due diligence.
How to confirm what you’re actually buying
Never rely on the “NNN” label in a listing headline. Instead:
- Read the actual lease’s expense responsibility section line by line
- Specifically confirm who pays for roof, structure, and any capital expenditures
- Ask whether there’s a landlord-side reserve requirement or cap on tenant reimbursement obligations
- Compare the lease terms to the marketing summary — discrepancies are common
Which structure should you target?
If your priority is truly hands-off, minimal-risk ownership, absolute NNN leases with strong tenants are the closest thing to it in commercial real estate.
If you’re comfortable retaining some structural responsibility in exchange for other trade-offs — potentially a higher cap rate, or a property type where double net is standard — NN can still be a reasonable fit, as long as you’re pricing that risk correctly going in.
Bottom line
The “NNN” label on a listing tells you very little on its own. Whether roof, structure, and capital repairs sit with the landlord or the tenant changes the real risk and return profile of the deal, and that only shows up when you read the actual lease.
Frequently asked questions
What’s the difference between double net and absolute triple net?
In a double net lease, the landlord typically retains roof and structural responsibility. In an absolute triple net lease, the tenant covers roof, structure, and often capital repairs as well, leaving the landlord fully passive.
Does a lease marketed as “NNN” always mean the tenant pays for the roof?
No. Some leases marketed as NNN are actually structured closer to double net, with the landlord still responsible for roof and structure. Always confirm this in the actual lease document.
Why are double net leases more common in multi-tenant properties?
It’s often more practical for the landlord to manage major structural systems across a shared building rather than dividing that responsibility among several tenants.
Which tenants typically sign absolute NNN leases?
Absolute NNN leases are most common with investment-grade, single-tenant retail and QSR tenants on long-term leases of 15 to 20-plus years.
How do I confirm the real expense structure of an NNN deal?
Read the lease’s actual expense responsibility section, confirm who pays for roof, structure, and capital expenditures, and compare it against the marketing summary since discrepancies are common.
Lease structure is only one factor in evaluating an opportunity. Our article What Makes a Great NNN Investment? covers the additional characteristics experienced investors look for before making a purchase.
Make sure you know what you’re really buying
QEM Estates confirms the actual expense structure — not just the label — on every NNN property before a buyer makes an offer. Contact our team to review the real terms on a deal you’re considering.