They're not Building Homes Anymore. Here's why that Matters.

Drive through Livingston. Drive through Millburn, Florham Park, Roseland, Parsippany, Morristown. You’ll see them - cranes, construction fences, freshly poured concrete, and eventually: gleaming new rental communities with resort-style amenities, co-working lounges, dog spas, and rooftop terraces. They’re going up fast, and they’re going up everywhere.

The question isn’t whether this is happening. The question is why, and what it means for anyone who owns a home in this market.

Follow the Money

Developers are not sentimental. They build what makes financial sense, and right now, rental communities make a lot of financial sense.

In the fourth quarter of 2025, rental product accounted for 95% of all multifamily construction starts nationally, one of the highest shares ever recorded. For comparison, rentals made up roughly 80% of multifamily starts between 1980 and 2002.  This isn’t a blip. It’s a structural shift. And the economics driving it are durable.

When a developer builds homes for sale, they carry significant risk. They need buyers at the finish line. They’re exposed to mortgage rate swings, buyer hesitation, and the unpredictability of a retail sales process. A rental building, by contrast, is an income-producing asset from day one. Institutional investors - real estate investment trusts, pension funds, private equity firms - are hungry for exactly that kind of steady, long-horizon return. The capital flows to rentals because the risk profile is simply more attractive.

Builders are increasingly finding it easier to underwrite deals as rentals than as for-sale projects.  Translation: the spreadsheets work better on apartments.

The Demand Side Is Enormous

All that supply isn’t being built into a vacuum. The renters are there, and they’re not going anywhere.

Homeownership rates for Gen Z and millennials flatlined in 2024, a stark contrast to the steady gains of previous years. Just 26.1% of Gen Zers owned their home, while 54.9% of millennials owned homes, essentially unchanged from 2023.  These are the largest adult generations in American history, and they’re renting.

Why? The math on buying has broken down. Mortgage rates jumped from around 3% to 7% starting in 2022 and have remained elevated. By spring 2024, the typical homebuyer was paying roughly $2,800 per month - an all-time high.  For younger buyers without existing equity to roll into a purchase, that’s a wall. High housing costs are a bigger obstacle for young people than older people because they can’t use equity to purchase their next house. 

And there’s a generational lock-in problem that compounds everything. Older homeowners who locked in 3% mortgages in 2020 and 2021 are not selling. They have nowhere better to go. That means the for-sale inventory that young buyers need isn’t coming to market -  which keeps prices high, which keeps more people renting, which keeps developers building apartments. It’s a loop, and it’s self-reinforcing.

The demographic picture is layered: millennials and Gen Z who prioritize flexibility are a key driver, but so are downsizing boomers - empty nesters looking for a lower-maintenance lifestyle who are increasingly drawn to newer rental communities.  Developers have figured out that rental living can appeal to multiple life stages simultaneously, which is a very comfortable demand base to build on top of.

New Jersey Has Its Own Accelerants

The national trends are powerful enough on their own. But New Jersey has additional forces that are turbocharging the rental boom specifically here.

First, there’s the NYC migration effect. Over 75,000 New Yorkers relocated to New Jersey in 2024 alone - a 12% increase from the previous year. Manhattan rental prices have rebounded to near-record highs, with the average one-bedroom exceeding $4,500 per month.  Many of those arrivals aren’t ready, or able, to buy. They want space, they want amenities, and they want out of the city. A new luxury rental in Livingston or Chatham is a very easy yes.

RentCafe estimates that New Jersey completed 13,195 new apartment units by the end of 2025, with North Jersey municipalities including Newark, Hackensack, Bayonne, East Hanover, and Weehawken leading the state in construction activity.  Essex County towns, including ours, are squarely in that pipeline.

Second, New Jersey law is pushing in this direction. The Mount Laurel Doctrine has required towns to provide their “fair share” of affordable housing since 1975. New Jersey’s landmark 2024 affordable housing law added real teeth to that framework, making it harder for affluent towns to block new developments.  Developers have learned to use the doctrine strategically - getting approvals for mixed-income rental projects that might otherwise face years of municipal resistance. Rentals become the vehicle of least resistance when you need to get a project built.

New Jersey rents average about 19% higher than the national average, driven by persistent housing shortages and strong demand, making rental yields attractive especially in transit-accessible areas.  That spread between NJ rents and the national baseline tells developers everything they need to know: this is a premium market, and it rewards premium product.

Why Not Build Homes for Sale?

This is the question that matters most to existing homeowners, and the answer is uncomfortable.

It’s not that builders don’t want to sell homes. It’s that the conditions for profitably doing so have become much harder to engineer. Land in northern New Jersey is expensive. Construction costs remain elevated. Municipal approvals for single-family subdivisions are slow, contested, and politically complicated. And at the end of that long, expensive road, the builder needs a buyer who can qualify for a 6.5 % mortgage on a $1,000,000+ home. That’s a narrow target.

Condo starts nationally sat at just 6,000 units in Q4 2025, essentially flat - a reflection of how liability exposure, financing constraints, and affordability pressures continue to weigh on for-sale multifamily development. 

Apartments, by contrast, can be sold as a single asset to a single institutional buyer. One closing. One transaction. Enormous simplicity relative to the alternative.

What Does This Mean for You?

If you own a home in Livingston or the surrounding area, here’s the honest read: the rental boom is both a signal and a driver of the market conditions that make your property valuable.

The same forces that are keeping buyers out of homes - high rates, high prices, constrained inventory - are what sustain the premium on well-located, well-maintained single-family homes in good school districts. There are genuinely fewer of those for sale at any given time, and there are a growing number of people who eventually want one.

Renters don’t stay renters forever. The luxury apartment dweller paying $3,200 a month in Florham Park right now may well be your buyer in two or three years, when rates shift and they’ve saved a down payment. These rental communities aren’t replacing the for-sale market. They’re warehousing tomorrow’s buyers.

The rental revolution reshaping the landscape around you isn’t a threat to homeownership in this market. It’s a reflection of how much demand is chasing too little supply. Understanding that dynamic, and knowing when to move, is the whole game.