What Multifamily Construction Data Actually Predicts About Rent

You don't need a crystal ball to predict apartment rents two years out.

You need a construction permit database.

Multifamily supply data is one of the most reliable leading indicators in commercial real estate, and it's telling two completely different stories depending on which metro you're looking at.

The Short Answer

Where fewer units are under construction relative to existing stock, rent growth holds up. Where a lot is still being built, rent growth stays weak, sometimes for years, even after starts have already slowed down.

The National Number

Multifamily units under construction have fallen to roughly 3.5% of existing inventory, half the peak rate of 7.9% seen in early 2023, and the lowest level since 2013. That's a real, structural pullback, not a temporary pause.

National rent growth forecasts have been revised down alongside it, from an earlier 3% estimate for 2027 to closer to 2%, and some forecasts put it as low as 1.9% through mid-2027.

Why a Falling National Number Still Hides the Real Story

A national average blends markets that are drowning in new supply with markets that barely have any. That blend produces a modest, unremarkable number that doesn't tell you anything useful about a specific property.

Do the Comparison

• Phoenix, Orlando, Atlanta, Dallas, Charlotte, Miami: still absorbing heavy recent construction, rent growth likely to stay weak well into 2027
• New York City, Chicago: only adding 1% to 2% to existing stock, seriously undersupplied, rents have more room to climb
• Southwest Florida coast: over 15% of housing stock currently under construction, the highest concentration in the country

Same national forecast. Three completely different rent trajectories.

Why the Timing Lag Matters More Than the Headline

Construction that broke ground two years ago is delivering now, which is why heavily-built Sun Belt markets are still seeing soft rents even as national starts have collapsed. The pullback in new starts won't show up as tighter vacancy in those specific markets for another year or two, exactly the pattern that played out with the broader supply pipeline across other property types heading into 2027.

Reading the Pipeline Before the Rent Roll Tells You

A property in a market with 15% of stock under construction is fighting a headwind that a similar property in an undersupplied Northeast market simply doesn't have. The rent growth forecast for the property depends entirely on which of those two situations it sits in, not on the national average either way.

Recap

• Multifamily construction has pulled back to the lowest share of existing inventory since 2013.
• National rent growth forecasts have softened to around 2% for 2027, but that number hides sharp regional divergence.
• Heavily-built Sun Belt metros are still absorbing recent supply and likely to see weak rents through 2027.
• Undersupplied markets like New York and Chicago have more room for rents to climb.
• The construction pipeline in a specific metro predicts that metro's rent trajectory far better than any national forecast.

Final Word

Don't ask what national rent growth will be in 2027.

Ask what percentage of that specific market's housing stock is still under construction.

That number, not the national headline, is what actually predicts the rent roll.

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