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Commercial Lease Types Explained: NNN, Gross and Modified Gross in Houston

Commercial Lease Types Explained: NNN, Gross and Modified Gross in Houston

NNN, full service gross, or modified gross? Know who pays for what before you sign.

Whether you are leasing space for your business or leasing out a building you own, the lease structure decides who pays for what, and it can change your real cost by dollars per square foot. In the Houston market you will see three main forms, triple net, full service gross, and modified gross, plus a few variations. This resource explains each one in plain language so you can compare offers on an apples to apples basis and avoid the surprises that come from reading only the base rent.

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Base Rent Is Only Half the Story

Base rent is only half the story in a commercial lease. The other half is who pays the operating expenses, the taxes, insurance, common area maintenance, utilities and repairs that keep a building running. Lease types are simply different ways of splitting those costs between landlord and tenant. Once you know which structure you are looking at, a rent number that seemed high or low often flips.

This matters on both sides of the table. Tenants who compare only the base rate can sign what looks like a bargain and then get hit with rising pass throughs. Owners who quote the wrong structure can scare off good tenants or leave money on the table. The fix is the same for everyone, understand the structure first, then compare the all in cost.

The Main Commercial Lease Types Explained

1

Triple Net (NNN)

The tenant pays a base rent plus its share of the three nets, property taxes, insurance and common area maintenance, usually as a monthly estimate that reconciles at year end. Base rents look lower, but the tenant carries the operating risk. Common for retail, freestanding, and industrial. Learn more in our guides to the triple net lease for owners and the NNN lease in Houston.

2

Full Service Gross

The tenant pays one all inclusive rent and the landlord covers the operating expenses out of it. Simpler for the tenant and common in multi tenant office. Watch for an expense stop or base year, which passes future increases above a set level back to the tenant.

3

Modified Gross

A middle ground. The tenant pays base rent plus some expenses, often utilities and janitorial for its own space, while the landlord keeps others like taxes and building insurance. Terms vary deal to deal, so the details are everything.

4

Single Net (N) Lease

The tenant pays base rent plus one of the three nets, most often property taxes, while the landlord keeps insurance and maintenance. It is the lightest of the net structures and is less common than double or triple net.

5

Double Net (NN) Lease

The tenant pays base rent plus two of the nets, typically property taxes and building insurance, while the landlord usually keeps structural and common area maintenance. It sits between single net and triple net in how much cost the tenant carries.

6

Absolute Net

A stricter cousin of NNN where the tenant is responsible for essentially all costs, including structure and roof. Common with single tenant, credit backed net lease investments where the owner wants truly passive income. Sometimes called a bondable lease.

7

Percentage Lease

Used mainly in retail, where the tenant pays a base rent plus a percentage of sales above a set breakpoint. It ties the landlord's return to the tenant's performance, so a strong sales location benefits both sides.

8

Ground Lease

The tenant leases the land and builds or owns the improvements on it, usually for a long term of decades. Common where an owner wants to keep the land while a tenant develops it, and the tenant typically pays taxes, insurance and maintenance much like an absolute net deal.

Commercial Lease Types: Who Pays What

Lease TypeTaxesInsuranceMaintenanceBase Rent
Triple Net (NNN)TenantTenantTenantLower, but variable pass throughs
Full Service GrossLandlordLandlordLandlordHigher, but predictable for the tenant
Modified GrossSplitSplitSplitMiddle, depends on the split
Absolute NetTenantTenantTenant plus structureLowest landlord burden, truly passive

What Counts as an Operating Expense

Property taxesThe annual tax bill on the real estate, a major pass through in net leases
Building insuranceThe landlord's property and liability coverage on the structure
Common area maintenance (CAM)Upkeep of shared areas, parking, landscaping, lighting, and management fees
UtilitiesElectric, gas, water, and trash, sometimes metered to the tenant's own space
Repairs and maintenanceRoutine upkeep, and in stricter net leases the roof and structure too
Management feeThe cost of running the property, often built into CAM

How to Compare Offers the Right Way

For tenants, the practical move is to ask every prospective landlord to quote the base rent and the estimated operating expenses separately, then add them for a true cost per square foot. A lower NNN rate can end up costing more than a higher gross rate once the pass throughs are in. For owners, choosing the right structure for your property type and tenant profile is part of maximizing value, and it feeds directly into what the building is worth. A broker opinion of value reflects your lease structure, not just your rent roll.

Leasing decisions also connect to buying and selling. An owner structuring leases today is shaping the asset a future buyer will underwrite, and a tenant signing a long lease may later want to own instead of rent. Our full hub of Houston commercial real estate resources covers the lease to own path and the disposition side, and because Stacy also handles home selling, business owners moving their family at the same time get both handled by one broker.

Leases on the Books: Operating vs Finance

If your business reports financial statements, the lease also lands on your books, and the structure affects how. Under the current accounting standard, ASC 842, most commercial leases now appear on the balance sheet as a right of use asset and a matching lease liability, where older rules let many stay off it. The standard splits leases into two types, operating and finance. An operating lease, the common case for ordinary space, spreads a single straight line rent expense across the term. A finance lease, closer to a purchase, splits the cost into interest and amortization and usually applies when the lease runs most of the asset’s life or transfers ownership, which is why a long ground lease can fall here.

The practical takeaway is simple. Ask your accountant how a lease you are about to sign will be classified before you commit to a long term, because the answer changes how the obligation shows up in your financials and can affect loan covenants. For owners, understanding how a tenant’s accounting treats the lease helps you structure a deal that works for both sides, and a clean, well documented lease is easier for a tenant to book and for a future buyer to underwrite.

Reading the Fine Print That Moves Your Cost

Two leases with the same headline structure can still cost very different amounts because of the clauses underneath. In a triple net deal, ask how common area maintenance is calculated, whether there is a cap on annual increases, and how the year end reconciliation works, because an uncapped CAM can climb faster than your budget. In a gross lease, the base year and any expense stop decide how much of future cost growth lands back on you. These details, not the structure label, are what determine your real number, which is why our guide to the triple net lease for owners walks through them line by line.

The lease also shapes what the building is worth if the owner ever sells, so leasing and selling are two ends of the same decision. A clean rent roll of well structured leases makes an asset easier to finance and more valuable to a buyer, which is exactly what our guide to selling versus holding a commercial property gets into. If you are a business owner signing a long lease now, it is worth asking whether owning would serve you better over that term, and the full hub of Houston commercial real estate resources covers that lease to own question so you can weigh renting against buying with real numbers rather than instinct.

Finally, do not sign a commercial lease on the base rate alone. Ask for a written estimate of the operating expenses, request the last year or two of actual pass throughs so you can see the trend, and confirm exactly which repairs and systems are yours versus the landlord’s. A few focused questions before you sign can save thousands over a multi year term, and they signal to the other side that you understand the deal, which tends to produce fairer terms all around.

Comparing Lease Offers or Structuring Your Own?

Stacy helps tenants find true all in cost and helps owners pick the structure that supports value and a future sale. One broker for the lease, the purchase, and the move.

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Frequently Asked Questions

In a triple net (NNN) lease the tenant pays a base rent plus its share of property taxes, insurance and common area maintenance, so the base rate is lower but the tenant carries the operating costs. In a full service gross lease the tenant pays one all inclusive rent and the landlord covers those expenses. Modified gross sits in between, splitting some expenses.

It depends on the actual operating expenses, not the base rate. A low NNN rate can cost more than a higher gross rate once the tax, insurance and maintenance pass throughs are added. Always ask for the base rent and the estimated expenses separately, then add them for a true cost per square foot.

In a full service gross lease, a base year or expense stop sets the level of operating expenses the landlord covers. Increases above that level in future years are passed back to the tenant. It is a common way a gross lease shifts rising costs onto tenants over time, so read that clause closely.

It depends on your property type, tenant profile and goals. NNN and absolute net leases shift operating risk to tenants and produce more passive income, which many single tenant and retail owners prefer. Gross and modified gross can attract office tenants who want simplicity. The right structure also supports a stronger valuation.

Yes. Stacy helps both tenants and owners compare lease structures on a true all in basis, and advises owners on the structure that best supports value and future sale. Call 832-445-8934.

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