Buying a Triple Net (NNN) Leased Property: Tenant, Lease and 1031 Fit
A triple net (NNN) leased property is a building rented to a tenant who pays base rent plus the property’s taxes, insurance and maintenance, as the lease defines those costs. When you buy one, you are mostly buying the lease. The tenant’s credit, the years left on the term, and the clauses on roof, structure, assignment and closing the store decide how much risk you take on. Many are single-tenant retail, medical, restaurant or industrial buildings.
Net-leased buildings are a common choice for investors who want income without managing apartments, including Bay Area and North Bay owners trading out of rentals through a 1031 exchange. They look simple on a marketing flyer. The diligence is in the lease, and this guide covers what to read, what to verify and how California property tax and exchange rules affect the purchase.
This page is general information, not legal or tax advice. A California commercial real estate attorney should review the lease and closing documents, and your CPA and qualified intermediary should confirm how the purchase fits your exchange.
What “triple net” covers, and what it doesn’t
Net lease labels are market shorthand, not legal categories. Our guide to commercial lease types compares them in detail; for a buyer, the question is which costs stay with the landlord.
| Common label | Tenant usually pays | Landlord often keeps |
|---|---|---|
| Double net (NN) | Property tax and insurance, often interior maintenance | Roof, structure, sometimes parking lot |
| Triple net (NNN) | Tax, insurance and most maintenance and repairs | Often roof and structure replacement, unless the lease shifts them |
| Absolute net or bondable | Nearly everything, including roof, structure and rebuilding after a casualty | Very little beyond collecting rent |
Two leases both called “NNN” can split the roof very differently. Read the repair, replacement, casualty and condemnation clauses yourself, and price any landlord duties as a reserve in your underwriting.
Tenant credit: who actually signed the lease
The brand on the sign and the entity on the lease are often different. A national chain may lease through a subsidiary with few assets, or a location may be run by a franchisee. A guarantee from a parent company or an individual changes the risk, so get the guarantee itself and confirm who gave it.
- Public companies. The SEC’s EDGAR system lets you look up a tenant or its parent by name or ticker and read its annual and quarterly reports. Full-text search covers more than 20 years of filings, which helps with store counts, closures and debt.
- Private tenants and franchisees. Ask for financial statements under a confidentiality agreement, store-level sales if the lease requires reporting, and the franchise agreement’s term.
- Payment history. Ask for a rent ledger covering several years, and ask whether the tenant has ever received rent relief or deferrals.
Lease term, options and rent increases
The years left on the lease matter more than the original term. A building with three years remaining carries real vacancy risk, while one with fifteen years remaining depends mainly on the tenant’s credit holding up.
- Renewal options belong to the tenant. Treat them as possible, not certain, and check the rent each option sets.
- Rent increases may be fixed steps, tied to an index, or nothing at all for long stretches. A flat lease loses purchasing power each year.
- Purchase rights. A tenant’s right of first refusal or first offer can delay or block your purchase, so confirm in writing that the tenant waived it for this sale.
- Termination rights such as early-out clauses or a kick-out tied to sales levels shorten the term you are really buying.
Dark-store, assignment and co-tenancy risk
“Going dark” means the tenant closes the store but keeps paying rent. Most leases allow it unless they require the tenant to keep operating. Rent may continue for the term, but a dark building is harder to refinance or sell, and some leases give the landlord a right to recapture the space when the tenant stops operating.
Assignment and subletting clauses decide what happens when the tenant wants out. The key question is whether the original tenant and any guarantor stay liable after an assignment. A release on assignment can swap a strong credit for a weak one without your consent.
In multi-tenant centers, co-tenancy clauses can let a tenant pay reduced rent or terminate if an anchor closes or occupancy drops. Ask how specialized the building is, too. A drive-through restaurant or a bank branch can be expensive to re-lease to a different use.
Estoppels and SNDAs before you remove contingencies
A tenant estoppel certificate is the tenant’s signed statement of the rent, term, deposits, options and any landlord defaults it claims. It binds the tenant to those facts, so compare it line by line with the lease and the seller’s rent ledger.
A lender will usually ask for a subordination, non-disturbance and attornment agreement (SNDA). It has three parts:
- Subordination: the lease ranks behind the new loan.
- Non-disturbance: the lender agrees not to end the lease after a foreclosure if the tenant isn’t in default.
- Attornment: the tenant agrees to recognize the lender or a foreclosure buyer as its landlord.
Many leases require the tenant to sign these within a set number of days. Start early, since a national tenant’s real estate department can be slow, and make the purchase contract’s due diligence period long enough to receive them.
California property tax on a net-leased building
The Board of Equalization says a typical purchase reassesses 100% of the property to current market value. On a net lease, whether the tenant absorbs that higher tax depends on the tax clause. Some California leases limit what the tenant pays after a sale, so the seller’s tax bill and the tenant’s actual reimbursement can both be the wrong number for your analysis. A supplemental tax bill will follow the purchase, and you should know before closing who pays it under the lease.
Long leases have their own rule. The BOE lists creating a leasehold interest for a term of 35 years or more, including written renewal options, as a change in ownership. That matters for ground leases and long sale-leasebacks. File the Preliminary Change of Ownership Report at recording; without it, the recorder may charge an extra $20. Our page on property tax for investors covers entity transfers and reassessment.
Using an NNN property as 1031 replacement property
Under Internal Revenue Code section 1031, real property held for productive use in a business or for investment can be exchanged for like-kind real property held the same way. Real property held primarily for sale is excluded. You must identify replacement property within 45 days of transferring the old property. You must also receive it within 180 days, or by your tax return’s due date with extensions, whichever comes first.
Our 1031 exchange guide covers the rest of the rules. Net-leased buildings are a common choice for replacement property because they can close with the tenant already in place. The risk is speed: buyers working against a 45-day clock sometimes skip lease diligence. Our guides to the 1031 identification rules and choosing a qualified intermediary explain the mechanics. Exchangers who want no landlord duties at all sometimes compare a direct NNN purchase with a Delaware statutory trust interest.
Many net-leased buildings sit outside California. If you exchange California property for property in another state, the state keeps a claim on the deferred gain. Our California clawback and FTB 3840 guide explains the annual filing.
A diligence checklist for a net lease purchase
- Read the full lease, every amendment and the guarantee, not the offering memorandum’s summary.
- Confirm the tenant entity, the guarantor and their financial condition.
- Map each cost to tenant or landlord: tax, insurance, roof, structure, parking, HVAC and capital replacements.
- Inspect the roof, structure and systems, and get repair records, even when the tenant maintains them.
- Check the lease for purchase rights, early termination, going-dark, recapture and co-tenancy terms.
- Obtain the tenant estoppel and the lender’s SNDA before contingencies expire.
- Review title, survey, zoning and any recorded use restrictions or reciprocal easement agreements.
- Line up the closing timeline with your exchange deadlines and lender.
Our commercial due diligence checklist covers environmental, ADA and title items in more depth.
Questions people ask
What is the difference between NNN and absolute net?
In common usage, a triple net tenant pays tax, insurance and most maintenance, while the landlord may still owe roof and structure replacement. An absolute net lease shifts nearly all of that to the tenant, often including rebuilding after a casualty. The lease language controls, not the label.
Is a triple net property a good 1031 exchange replacement?
It can qualify as like-kind real property held for investment, and many investors use one to step away from managing tenants. Whether it suits you depends on the tenant’s credit, the remaining term and your exit plan, and on meeting the 45-day and 180-day deadlines.
What happens if an NNN tenant goes dark?
If the lease doesn’t require the tenant to keep operating, it can close the store and keep paying rent. Your income continues for now, but re-leasing, refinancing and resale get harder, and you should check whether you have a recapture right.
Does the tenant pay the higher property tax after I buy?
Only if the lease says so. California reassesses the property at your purchase, and the tax clause decides whether the tenant reimburses the full new tax, a capped amount or only the old amount.
What is an SNDA and why does my lender want one?
It is an agreement among the tenant, the lender and the landlord. The lease is subordinated to the loan, the tenant is protected from losing its lease in a foreclosure if it isn’t in default, and the tenant agrees to accept a new owner. Lenders usually require one before funding.
Can a California broker help me buy a net-leased property in another state?
Real estate licensing is state by state, so a purchase outside California generally involves a broker licensed where the property is. Ask how your California broker will work with that broker before you start your identification period.
Talk through a net lease purchase
Diamond handles commercial sales and leasing and works with investors who are selling or exchanging Bay Area and North Bay property. If you are weighing a net-leased building as replacement property, start with our commercial real estate services and bring the lease, the offering package and your exchange dates. Diamond may refer you to partners we work with; you’re free to choose any provider.
Sources & notes
- Cornell LII: 26 U.S.C. 1031, exchange of real property held for productive use or investment
- California State Board of Equalization: Change in ownership FAQs
- U.S. Securities and Exchange Commission: Search filings (EDGAR company and full-text search)
Last reviewed October 2026 by Matthew Martinez.
