A CPI rent reading says U.S. rents have risen 3.3 percent over the past two years. However, multifamily owners hear that number and wonder what planet the statisticians are living on. In much of the market, effective rents have been flat to negative once concessions are accounted for; yet, the official gauge that drives interest-rate policy still shows steady growth.
That disconnect — between lived reality in multifamily and the Consumer Price Index's rent measures — was a discussion point in a recent Walker & Dunlop webinar, "The Most Insightful Hour in CRE," featuring Willy Walker, chairman and chief executive officer of the firm and Peter Linneman, principal of Linneman Associates and longtime Wharton real estate economist. In it, both men questioned why the data appears so detached from what sophisticated owners have experienced for the past two years.
A 3.3 Percent Number Few Owners Recognize
"Ask any owner of multifamily properties in the country whether they've been able to raise rents 3.3 percent over the last two years, and you'll find about two of them," Walker said, referring to the rent growth figure cited in Linneman's latest quarterly letter.
"I don't get how their data feed on rent growth in America is so inaccurate."
Linneman echoed the concern. "I can't disagree with you," he replied. "I've tried to figure it out, and to be honest, I can't see… it's not a data lag."
Two years ago, he noted, statisticians could plausibly blame a six‑month lag between what the Bureau of Labor Statistics samples and what owners are seeing in real time. Over the last 18 months, that explanation has broken down as market rent growth has averaged roughly zero, with no obvious way for a lagged series to generate a 3.3 percent increase.
Owners' Equivalent Rent and a Flawed Lens
The controversy goes beyond headline rent. Much of the housing component of the CPI is driven by "owners' equivalent rent," an imputed value based on what homeowners report their homes would rent for.
"Nobody pays owner equivalent rents," Walker said.
"So the idea that they survey people of what they would rent their house out for is… a strange way of doing it, and probably doesn't work anymore."
He was willing to accept that as an understandable methodological compromise, but he questioned how even the more direct rental measures could be so far off from what institutional multifamily owners report.
Linneman suggested the answer lies somewhere in the sampling frame. The BLS does not weight its rent survey toward institutional assets in high‑growth metros; the basket includes smaller properties in tertiary markets that have not seen the same pressure on effective rents.
"Yes, I know there are apartments out in small towns and such. I own such an apartment, and it's gone up sort of one [to] two percent over that time period," he said.
"It's not just a bunch of those doing it. And for every one of those you've got downtown, you know, Austin or Phoenix or something really pulling it down. So I really don't understand how they get there.
Shelter Mismeasurement and Rate Policy
For commercial real estate executives, the implications extend directly to monetary policy. Linneman pointed out that if one strips out the mismeasured shelter component, inflation over the past two years has averaged roughly 2.1 percent, in line with the 2.2 percent average for the three decades before the pandemic.
On that basis, he argued, the effective federal funds rate — about 3.6 to 3.7 percent in real terms — is unusually restrictive.
"Absent shelter, which we've talked about, [inflation] is mismeasured," he said. "Add 75 basis points, add 50 basis points [as a real return], and you're up to the kind of 2.75 range to three. They've got to cut sort of at least 50 basis points."
In other words, if CPI's rent and owners' equivalent rent inputs were closer to what multifamily owners actually see, the headline inflation number would be lower, and the political space for faster and deeper rate cuts would be wider.
Linneman told Walker he expects 75 to 100 basis points of easing this year, more than is currently priced in. If shelter inflation were not overstated, that call might look less contrarian and more like a baseline.
Mispricing Risk in Multifamily
The misalignment also filters directly into multifamily valuation and strategy. Cap rates, financing costs and investor required returns are all influenced — formally or informally — by a macro narrative heavily anchored to CPI. Over the past several years, multifamily values have fallen roughly 30 percent from pre‑pandemic peaks despite what Linneman described as a "roaring" macro economy, with strong equity markets and unemployment of about 4.3 percent.
If the primary inflation gauge overstates rent growth, investors can underestimate the real income pressure properties face and overestimate the extent to which nominal rent growth can bail out highly leveraged capital structures.
At the asset level, the gap between CPI's rent line and on‑the‑ground performance complicates decisions around timing and pricing. Owners underwriting renewals and new leases in an environment of heavy concessions and marginal occupancy gains know that a reported 3.3 percent rent increase is a fiction or it feels that way.
Yet lenders, rating agencies and even some investment committees still rely on CPI‑linked narratives when they calibrate risk, often treating "shelter inflation" as a sign of sector strength rather than a methodological artifact.
Building a Shadow Inflation Framework
Strategically, that puts a premium on what might be called a shadow inflation framework for multifamily. Rather than treating CPI as a reliable guide to sector health, operators are building their own rent indices from internal portfolios, third‑party data and leasing system outputs and then mapping those against local supply pipelines, absorption and concessions trends. The point is not to replace CPI, but to discount it when it clearly diverges from market‑clearing rents and net effective income.
The webinar's conversation underscored how much is at stake when an official metric drifts away from market reality. For Linneman, the shelter mismeasurement is not a minor technical issue; it sits at the center of a policy mix he believes is tighter than widely appreciated and likely to be reversed more aggressively than consensus expects. For multifamily owners, the same flaw can lull capital into complacency about income growth just as supply peaks, concessions widen and valuations reset.
© Arc, All Rights Reserved. Request academic re-use from www.copyright.com. All other uses, submit a request to TMSalesOperations@arc-network.com. For more information visit Asset & Logo Licensing.