Owners ask the same first question in every conversation: what is my tower worth? The honest answer is that a tower is worth a multiple of the cash it throws off after the ground is paid for, and that the multiple moves with a handful of facts you can name. This is how buyers think about it, so it is worth learning the vocabulary before the first call.
Start with tower cash flow
Buyers do not value rent. They value tower cash flow, usually shortened to TCF. The arithmetic is short: take the rent the tenants pay, subtract the ground rent you pay the landowner, subtract power, security, and the small operating costs the tower itself carries, and what is left is TCF. A tower with two carriers paying a combined $5,000 a month and a ground lease at $1,200 a month is not throwing off $60,000 a year. After the ground rent and the tower's own costs, tower cash flow is closer to $45,000, and that is the number the offer is built on.
Two towers with the same rent can have very different TCF. The one on fee-owned land has no ground rent at all. The one with a ground lease that escalates 15 percent every five years is giving a growing slice of its rent away. Buyers price the slice.
The multiple is shorthand, not a promise
Published valuation references put tower sales anywhere from about 15 to 40 times TCF. In private-market conversation the range quoted for a mid-market tower is narrower, usually 20 to 35 times, and public tower companies trade at lower multiples of a broader earnings figure. Treat the range as vocabulary. Nobody pays a range; they pay a number for a specific tower, and the number lands inside or outside the range according to the facts below.
Public transactions show how wide the spread is. In March 2024 Shentel agreed to sell its 226-site tower portfolio, 218 of them macro towers, to Vertical Bridge for $310.3 million, about $1.4 million a site, according to the announcement Shentel filed with the SEC. Portfolios with weaker tenancy or shorter ground leases have changed hands for far less per tower. Same asset class, very different prices, because the underlying cash flows and their durability were very different.
Five facts that move the number
Who is on the tower. A national carrier under a long master lease with built-in escalators is the anchor every buyer wants. A regional wireless internet provider on a month-to-month license is real revenue with a different risk. Buyers weight the two differently, and they should.
How long the ground lease runs. The tower stands on someone's land. If the lease, including its renewal options, runs another thirty years, the cash flow is durable. If it runs eight, the buyer is underwriting a renegotiation, and the price reflects that uncertainty. Fee-owned land removes the question entirely, which is why it commands a premium.
How much the structure can carry. A tower with open rad-centers and structural headroom can take a second or third tenant. That upside has a price, but only if an engineer can show the capacity exists. A stamped structural analysis is worth more than a broker's assurance that "there is room."
Whether the paperwork is clean. A current FCC antenna structure registration, an FAA determination that matches the as-built height, no open environmental or historic-preservation matters, and zoning that permits what is standing. Each missing piece is a cost the buyer has to carry and will price.
Where the tower is. A site inside a carrier build program, or one that fills a coverage gap with no competing structure nearby, carries lease-up potential. Carrier capital moves in cycles, and in 2026 trade coverage points to a $23–24 billion capital budget at AT&T, with a dedicated FirstNet public-safety build inside it and most of the new sites going to rural and tribal areas. Towers in that footprint are getting more calls.
Single tenant versus multi-tenant
Owners are often surprised that a single-tenant tower can trade at a higher multiple than a multi-tenant one. The reason is upside. A buyer paying for one tenant is also buying the chance to add a second, so the multiple on today's cash flow looks rich. A three-tenant tower has already captured that upside, so the multiple is lower even though the absolute price is higher. Neither is better in the abstract. What matters is that the offer reflects which one you own.
What this means for an owner
Three things follow. First, a number quoted without a rent roll and a ground lease in hand is a guess, whoever quotes it. Second, the facts that move value are mostly documents, and documents can be gathered before a sale rather than during one. Third, some of those facts can be improved: a ground-lease extension signed before a sale often adds more to the price than it costs.
If you want to know what a specific tower is worth, the fastest route is to send the facts and let an engineer look at the structure. That is how we start every conversation.