The multifamily housing sector experienced a notable shift in 2025, with high-density apartment projects taking center stage. According to the National Association of Home Builders (NAHB), the overall number of completed apartment units dropped from 608,000 in 2024 to 484,000 last year—but the share of high-density constructions reached an all-time high.
Drop in Overall Completions
The overall decline in apartment unit completions paints a worrying picture for the multifamily sector. A drop from around 608,000 units in 2024 to 484,000 in 2025 indicates a significant downturn. This contraction, almost a 20% decrease, could be attributed to a variety of factors, including rising construction costs, stricter lending standards, and a hesitant market influenced by high interest rates. As lenders become more conservative, developers face more challenges securing financing for new projects.
The South remained the leader in apartment completions, accounting for 45% of the national total, though its numbers fell from 292,000 in 2024 to 217,000 in 2025. In contrast, the Northeast saw a significant uptick in high-density projects, with 58,000 units completed, representing 73% of its total construction. This marks a shift from the traditional preference for smaller buildings.
Trends in Apartment Density
A primary takeaway from the NAHB's analysis is a marked increase in high-density buildings. In 2025, 57% of new multifamily units were in structures with 50 or more units, the highest share since 2021. The shift towards larger buildings indicates a growing preference among developers for projects that maximize the number of units per land parcel—an approach that mitigates some of the financial pressures they face.
The plight of smaller multifamily projects isn't surprising, given the constraints posed by high interest rates and soaring land prices, as highlighted by the Urban Institute. Smaller projects often land in financial limbo due to their inability to offer the economies of scale that larger developments provide. This trend not only makes it harder for first-time developers or smaller firms to enter the market, but it also consolidates power among larger players who can afford the higher investment risks and reward the higher densities. There's little indication that this trend will reverse in the near future; the growing demand for housing in urban centers coupled with stagnation in housing supply suggests that high-density development will become the norm, rather than the exception.
Geographic Variations in Construction
The regional breakdown reveals diverse trends: the South, West, and Northeast all delivered more high-density units compared to medium- or low-density constructions in 2025. Yet, the Midwest painted a different picture; low- and medium-density projects still predominate, marking the only region where high-density unit shares declined. Why does this matter? Well, it underscores the distinct housing demands driven by population dynamics, economic conditions, and urban planning policies that vary from region to region.
This geographical diversity highlights the ongoing transformation within the multifamily market, as areas like the Northeast push further into high-density territory while other regions adapt to different demands. Each region's shift in strategy reveals a complex interaction of economics, demographics, and local regulations. High-density building might be the rallying cry in coastal cities, while the Midwest clings to smaller, family-oriented developments. (and this is the part most people overlook) The housing crisis isn't uniform; it's nuanced and deeply rooted in local contexts.
Rental Properties Dominate Market
It's interesting to note that a staggering 95% of last year's completed multifamily units were built to rent. This strong rental orientation reflects ongoing societal shifts where homeownership is increasingly viewed as less attainable for many, particularly younger buyers burdened with student debt or rising living costs. The trend towards high-density buildings aligns neatly with this demand, as rental firms look to maximize their portfolios with larger, more efficient structures tailored to tenant needs.
Furthermore, the landscape for built-for-sale units is changing, with completions in this category dropping from 29,000 in 2024 to just 23,000 last year. The decline of built-for-sale units suggests that many potential buyers are being sidelined from the market. While high-density structures continue to make up the majority of these built-for-sale units, their share declined from 40% in 2024 to 32% in 2025—the only exception being small buildings of 10 to 19 units that saw a sizeable market share increase. This speaks volumes about shifting buyer preferences; smaller units may be regaining traction as some buyers prioritize affordability and community over sheer size.
This evolving dynamic in multifamily construction not only reflects changing preferences among developers and renters but also signals how broader economic factors are shaping the future of housing across the United States. The unsettling truth? If economic conditions don’t improve, we may be left with an oversupply of rental units and a persistent scarcity of ownership opportunities.
Implications for the Housing Market
The shift toward high-density multifamily units raises critical questions about the future of housing in the U.S. The construction trend towards these larger projects suggests that developers are responding to immediate market demands—albeit at the potential cost of sidelining segments of the population who favor smaller, more localized housing options. For renters, this means more choices, but the focus on high-density units may also signal a growing disconnect from what many desire: affordable, accessible homes.
If you're working in this space, you should keep a close eye on these trends as they could shape the rental and home-buying landscapes for years to come. Ultimately, region-specific responses to housing demands will likely continue to diverge, reflecting a patchwork of needs. The implications are significant. It signifies a transformation that may redefine urban neighborhoods, challenge community values, and confront the longstanding American dream of homeownership.
Source: NAHB, Census Bureau Survey.
