By Novo Real Estate
Two San Francisco storefronts can quote the same rent per square foot and cost completely different amounts to occupy. The difference is usually one line in the lease: who pays the property taxes, the insurance, and the maintenance. We spend a lot of time on that line with clients, because once you can read it, comparing spaces gets much easier and negotiating gets more interesting. Here's how the main structures work.
Key Takeaways
- A gross lease bundles operating costs into one payment, and a net lease separates them out.
- Full-service gross shows up most often in San Francisco's multi-tenant office buildings and upper-tier retail.
- Triple net (NNN) puts taxes, insurance, and maintenance on the tenant alongside base rent.
What Is a Gross Lease?
A gross lease is one where the landlord charges a single payment that already covers the building's operating costs. You get one number, and the owner carries the work of tracking what the building actually costs to run.
We see this structure most in San Francisco's larger multi-tenant office buildings, where a landlord managing systems across many suites can do it more efficiently than each tenant could alone. That efficiency is part of what the rent is buying.
What a Gross Lease Delivers
- Budget certainty — one line item to model against revenue, which makes forecasting occupancy cost straightforward.
- Professional building management — the owner handles vendors, systems, and common areas across the whole property.
- Less administrative load — no reconciling expense statements or auditing pass-through charges each year.
- A cleaner comparison against your revenue — useful for operators who'd rather run a business than a building.
What Is a Modified Gross Lease?
A modified gross lease sits between the two structures and is common in San Francisco office space. Operating expenses, taxes, and insurance get built into the base year rent, and any increases above that base year get passed through to the tenant on a pro-rata share.
The structure splits the difference sensibly. A tenant gets a predictable first year, and an owner stays protected if a building's costs climb across a ten-year term.
How the Base Year Works
- Year one sets the benchmark — that first year's operating costs become the baseline baked into your rent.
- Your share follows your footprint — a tenant in 2,000 of 20,000 square feet carries roughly ten percent of any increase.
- The base year itself is negotiable — one of the more valuable items to discuss before you sign.
- Caps are available — many San Francisco leases put an annual ceiling on how much of an increase can pass through.
What Is a Net Lease?
A net lease is one where the tenant pays some or all of the building's operating expenses on top of base rent. The base number looks lower than a comparable gross lease because it's covering less, which is why reading the structure matters before you compare two quoted rates.
The category splits by how many expense buckets sit with the tenant. That count is what the N's are counting.
The Four Net Structures
- Single net (N) — the tenant picks up one of the three categories, most often property taxes.
- Double net (NN) — two of the three, typically taxes and insurance, with the landlord keeping maintenance.
- Triple net (NNN) — taxes, insurance, and maintenance all sit with the tenant, alongside base rent.
- Absolute net — sometimes called a bondable lease, where the tenant also takes on structural repairs.
Which Lease Structure Works Better for You?
The better structure depends on which side of the table you're on and how long you plan to hold. Owners across San Francisco often favor net structures because expenses pass through cleanly, which makes an income stream easier to underwrite and easier to sell later.
Tenants weigh it differently, and both answers can be right. A gross lease buys certainty, while a net lease starts from a lower base and rewards operators comfortable managing building costs directly.
What We'd Look At
- Length of term — the longer the lease, the more the expense structure compounds in either direction.
- Building age and systems — maintenance obligations mean more in an older Mission or SoMa building than a recently renovated one.
- Your appetite for variability — some operators happily pay a premium for one predictable number.
- The pass-through language itself — the definitions inside the lease matter more than the label on the cover.
Frequently Asked Questions
What does NNN mean in a commercial lease?
NNN stands for triple net, and we'd read it as the tenant paying property taxes, insurance, and maintenance in addition to base rent. The quoted rate looks lower than a gross rate because those three costs sit outside it.
Is a gross lease or a net lease better for a tenant?
We've placed clients happily into both. A gross lease gives you one predictable payment, while a net lease starts from a lower base and suits tenants comfortable managing building costs directly.
Who pays property taxes in a San Francisco commercial lease?
It depends entirely on the structure, and it's one of the first things we check. Under a full-service gross lease, the landlord covers them, and under single, double, and triple net leases, that obligation shifts to the tenant.
Reach Out to Novo Real Estate Today
Lease structure is where a lot of value sits in a commercial deal, and it rewards reading closely before you sign. Two spaces that look identical on a listing sheet can perform very differently across a ten-year term.
We work across San Francisco commercial and investment property from our office on Van Ness. Reach out to us at Novo Real Estate to talk through a specific space, or browse our commercial and investment listings to see what's available now.
