When I opened the 2025 renewal notice for a rooftop site we lease from SBA Communications, the base rent had gone up 3%. I was ready for that. But the total invoice was up 12%. Somewhere between the original proposal and the final bill, nine percentage points of extra cost had snuck in. My CFO asked me to explain the gap. After six years of tracking every tower expense across our portfolio, I knew exactly where to look.
This is the reality for many network operators heading into 2025. The headline rent numbers stay low, but the total cost of keeping a site keeps climbing. And the reasons are almost always buried in lease contract language that nobody re-reads until the first shock arrives.
The surface problem: costs are climbing faster than the lease terms suggest
The way most people look at a tower lease, they see a base rent figure and a simple annual escalation. On paper, SBA Communications' offers look reasonable. The contracts I've seen typically specify something like CPI plus 1% or 2%. That sounds manageable. Actually, it isn't. That's only the beginning.
What most people don't realize is that the real increase is usually driven by pass-through costs: property taxes, insurance, utilities, maintenance, and administrative fees. SBA Communications, like other tower REITs, doesn't absorb these costs—it passes them through to tenants. That's not secret information. But the structure makes it nearly impossible to forecast accurately.
Here's something vendors won't tell you: the first quote, or even the signed lease, often leaves room for future adjustments tied to third-party costs. If a local government reassesses the property value or the utility rate jumps, the tenant pays. It's a fair arrangement in principle, but it puts the risk entirely on you. The question is whether you understand the mechanism before you sign.
The deeper layer: escalators, exclusions, and line items that multiply
Take a closer look at how escalation actually works in a typical SBA Communications lease. You might see a 3% annual rent adjustment, but also a clause that triggers a "market review" every fifth year. If the market rent for nearby sites has risen faster than CPI, your base rent gets trued up to the higher level. I've seen a market review add 9% in one shot, wiping out the savings from a lower initial rate.
Then there are the pass-throughs. On paper, a property tax pass-through seems simple. But invoices often include a blended rate across multiple sites, making it impossible to verify whether you're paying your fair share. The lease might also allow for an administrative markup on top of pass-through costs. I should add that this markup is often non-negotiable on smaller sites. It's not a huge line item by itself, but it compounds when applied to utility spikes and tax reassessments.
This isn't academic. I learned the hard way when we signed a lease with a large REIT—not SBA, but similar terms—and skipped a full review because "it was the same as the previous one." That was the one time it mattered. A buried clause allowed the landlord to exclude "tenant property" from the site's maintenance coverage. So when we installed new antenna equipment, the landlord charged us for the installation contractor's labor on top of the equipment purchase. The result was a $4,200 surprise that should have been covered by the site agreement. I still kick myself for not reading that section out loud and questioning what "tenant property" meant.
Even ordinary components become cost multipliers. For example, we standardized on Duraforce Pro 3 connectors for RRU installations. They're small, dependable, and cheap if you buy them yourself. But because our lease didn't explicitly list them as included items, the landlord's contractor had to "supply and install" them at a markup. The connectors themselves were $28 each. The installation labor for two connectors was $180. Multiply that across dozens of sites, and a minor detail becomes a six-figure problem.
The real cost: compounding hidden expenses and lost leverage
The impact goes far beyond the occasional surprise invoice. When pass-through costs grow at 6% per year while base rent grows at 3%, the overall site cost compounds. Over a seven-year lease, that small difference can shift the total occupancy cost by more than 20%. Think of it this way: a 3% base rent escalator over a five-year term is a 15% increase. But if pass-through costs grow at 6% and make up a third of the bill, the total cost increase is closer to 24%. That's a hidden gap that even a CFO will notice when the budget variance report comes out.
I built a cost-tracking spreadsheet after being burned on hidden fees twice. Today it holds six years of data across every site we lease. The patterns are clear: roughly 18% of our total tower costs come from pass-through and add-on line items that were never part of a formal negotiation. That's about $350,000 a year for our footprint. Money that could have funded a small-cell build-out or improved rural coverage.
One of my biggest regrets is not negotiating a cap on property tax pass-throughs in our early leases. If we'd had a cap, we would have been protected from a 15% spike when the county reassessed a site's value. Instead, we paid the increase and the landlord's fee on top of it. That experience forced me to change our procurement policy: every new site agreement now requires a cap on pass-through increases, and every renewal gets an invoice audit before signing.
The administrative burden is another hidden cost. My team spends about 15% of its time reconciling landlord invoices, contesting errors, and chasing documentation. That's time we can't spend on site selection or negotiating new deals. This is where I see the efficiency trend most clearly. Companies that invest in lease administration software can spot discrepancies in minutes, not weeks. They also have the data to challenge inaccurate bills, because they know the full contract history.
What SBA Communications is doing now—and what it means for your negotiations
So what is SBA Communications doing now? From a business model perspective, they're moving beyond the classic macro tower. Their investor materials highlight growth in small cells, rooftop sites, and new-format structures that can be deployed faster and at lower cost. That's a positive sign for future lease negotiations because more formats mean more competition for your shelter space.
For a cost controller, the takeaway is to treat each site type on its own terms. A small cell lease often has different escalation and pass-through rules than a macro tower. Don't assume the same contract language works for both. We found that rooftop site agreements are actually less standardized than tower leases, so they need even more attention.
The truth is, SBA Communications is a sophisticated counterparty. Their financial profile is strong, and they know that tenants value predictability. In our own renewals, they've responded well to data-driven requests. We've successfully negotiated lower base rents in exchange for longer terms, and they agreed to more detailed invoice line items. Those wins didn't come from being aggressive—they came from showing up with numbers.
A practical plan for 2025
Here's how to approach your next tower lease renewal, whether it's with SBA Communications or another landlord.
First, build a total cost of ownership model before you start talking. Include base rent, escalators, expected pass-throughs, management fees, and excluded equipment like Duraforce Pro 3 connectors. Even a simple spreadsheet gives you leverage that a one-page renewal letter won't.
Second, audit every invoice for the first six months after signing. That's when errors are most frequent. In one case, a utility charge meant for another tenant appeared on our statement for three months before we caught it. If we'd waited until year-end, it would have been a $1,800 loss. So glad we now have a routine review cycle; without it, that would have slipped through.
Third, ask for a cap on pass-through costs. Any reasonable landlord will accept a cap, especially if you point to the industry's own move toward transparency. If they refuse, that tells you what to expect in the relationship. In our experience, the first request is almost never the final answer—there's room to negotiate once you've proven you're a reliable tenant.
Fourth, digitize the tracking process. Manual reconciliation doesn't scale, and the cost of that inefficiency is real. In our case, moving from a stack of paper invoices to a structured spreadsheet—and eventually to lease administration software—cut our reconciliation time by half. Efficiency isn't just about doing things faster; it's about creating the capacity to spot problems before they become budget overruns.
I'm not 100% sure every landlord will accept every request, but more often than not, they'll work with you if you bring specifics. The key is understanding what drives the cost, which brings us back to the original problem. The 12% increase on that SBA Communications invoice wasn't a mistake. It was the logical result of a contract that put all the risk on the tenant. Once you understand that, you can negotiate the terms that actually matter.
The companies that will thrive in 2025 aren't necessarily the ones with the lowest rent. They're the ones that control their total cost structure. That's what the efficiency argument comes down to—not just saving on the base rate, but having the data and the process to stop the bleeding in the fine print.