The modern homebuilding landscape is currently defined by a complex intersection of rising land costs, evolving regulatory mandates, and shifting consumer preferences. Against a litany of economic cross-currents and persistent headwinds, developers in diverse markets are finding that success requires a delicate balance: a product mix and community design that not only meet increasingly stringent density requirements but also attract buyers and remain financially viable—or "pencil"—in an era of high construction costs.
The challenges of density were the focal point of a strategic session at the Pacific Coast Builders Conference (PCBC) held on July 28. As one of the premier annual gatherings for the real estate and construction industries, PCBC serves as a barometer for the trends shaping the Western United States and beyond. During the session, a panel of industry experts underscored a critical reality: density is no longer a localized concern for coastal metropolises; it is a national imperative that requires a hyper-local execution strategy.
The Geographic Spectrum of Density Requirements
While density mandates have long been the norm in land-constrained coastal markets like San Francisco, Seattle, and Los Angeles, the phenomenon is rapidly expanding into regions once characterized by sprawl. Markets such as Montana, which historically prioritized large-lot single-family homes, are now grappling with an affordability crisis that necessitates higher-density configurations.
Industry analysts point to a fundamental shift in the American housing market. According to data from the National Association of Home Builders (NAHB), the market share of townhouses reached a 17-year high in late 2023, accounting for nearly 20% of all single-family starts. This trend reflects the "Missing Middle" housing movement—a push for multi-unit or clustered housing types that are compatible in scale with single-family neighborhoods.
However, the PCBC panelists agreed that recognizing the need for density is only the first step. The real challenge lies in the realization that density is not a one-size-fits-all equation. Instead, it must be approached through the lens of each market’s unique constraints, opportunities, and historical buyer expectations. Jonathan Boriack, Principal at KTGY, framed the dynamic succinctly during the session: “Cities give us a density. Design tells us how many ways we can achieve that, and then the market ultimately tells us if we’re a success or not.”
Tailoring Product Mix to Regional Acceptability
In the San Francisco Bay Area, the entitlement process is notoriously complex, often involving multi-year battles over zoning and environmental impacts. Yet, this high-pressure environment has created a buyer pool that is remarkably open to unconventional product types. Emily Boyd, Director of Business Strategies at Brookfield Residential Land, highlighted that in Silicon Valley and surrounding areas, there is a "wide breadth of acceptability" for high-density products.
Brookfield has successfully implemented "stacked flats"—configurations featuring a two-level townhome built over another two-level townhome—as well as three-level detached and attached units. A key finding for builders in this region is the persistent value of the "detached" label. Boyd noted that in Brookfield’s communities, a three-story detached townhome often commands a significant price premium over a structurally similar attached product.
"Detached always had this premium because you’re not sharing walls," Boyd explained. "But the fact of the matter was, when it got to the market, it lives like a three-story townhouse with a double end unit premium." By using creative layouts such as alley-loaded homes, front porches, and narrow setbacks, builders can maintain the visual character of a traditional single-family neighborhood while achieving the density levels required by local planning boards.
The Vertical Limit: Regional Resistance to Height
The strategies that thrive in the Bay Area do not always translate to other Northern California markets, let alone other states. Barry Long, Managing Principal at Urban Design Associates, provided a comparative analysis of regional expectations. He noted that while three-story products are standard in high-cost coastal hubs, buyers in Sacramento often view two stories as the limit. Further north in Chico, California, the market expectation shifts toward one-story units.
"They’re going to have resistance even going two-story in that market," Long said, referring to Chico. To solve for density without going vertical, Long’s team has turned to creative typology, such as "court" designs and micro-units. By building clusters of homes that are 900 square feet or less, developers can increase the unit count per acre without violating the aesthetic or cultural preference for single-story living. This approach addresses the affordability gap for younger buyers and downsizers while respecting local architectural heritage.
Density in the Mountain West: The Case of Montana
The shift toward density in the Mountain West represents one of the most significant changes in Western real estate. Grant Syth, Principal at Montana-based Bridger Land Group, explained that even in "Big Sky Country," the traditional model of massive lots is becoming economically unfeasible for the average resident.
The challenge in these markets is not just density, but differentiation. Syth observed that many developers have flooded the market with identical products, leading to a glut of "cookie-cutter" supply. "We can get creative on what our density looks like and do a slightly different product," Syth said. "All of a sudden, yes, there’s oversupply, but there’s still high demand for this more unique-looking density." For Montana builders, the opportunity lies in delivering communities that function differently from the competition—incorporating rugged aesthetics with modern, efficient site plans.
Financial Engineering: Parking and Construction Costs
Achieving density is as much a financial exercise as it is an architectural one. Bill Ramsey, also a Principal at KTGY, discussed the "tricks" of the trade that help projects pencil. One notable example involved rethinking parking—a significant cost driver in residential development. By replacing a traditional two-car garage with a single-car garage and an adjacent parking pad, developers can reduce construction costs and use the saved land to add more units to the site.
This strategy addresses both density and affordability. However, the panelists cautioned that parking remains one of the most sensitive variables in the density equation. In hyper-dense urban cores like San Francisco, Boston, or Chicago, a dedicated parking spot is a high-value luxury that can add six figures to a home’s resale value. In contrast, in suburban or transitional markets, over-building parking can kill a project’s profitability.
The Strategic Advantage of Product Segmentation
A recurring theme throughout the PCBC session was the value of a diverse product mix within a single development. Rather than building 200 identical townhomes, developers are increasingly blending various housing types to target a broader range of buyer profiles.
"What I like about the technique of using multiple products is it gives you the ability to segment," Ramsey noted. This segmentation allows builders to capture different price points and square footage requirements simultaneously, accelerating the "absorption rate" (the speed at which homes are sold). In a high-interest-rate environment, where carrying costs for land can erode profits, speed of sale is paramount.
In the Bay Area, this blending is often a regulatory necessity. State and local laws frequently require a percentage of affordable units within market-rate developments. Developers like Brookfield Residential often manage this by concentrating affordable units in specific high-density sections of a project, allowing the market-rate portions to be optimized for maximum return. This "blended density" ensures the project meets social and legal obligations without compromising its overall financial viability.
Amenity ROI: Matching Scale to Lifestyle
The final piece of the density puzzle is the amenity package. As lot sizes shrink, the "backyard" is effectively replaced by community-wide amenities. However, the panelists warned that more is not always better. Amenities only generate value when they are scaled correctly to the community’s size and the residents’ willingness to pay for maintenance.
Grant Syth shared a cautionary tale from a 60-unit boutique apartment complex his firm developed. Despite its award-winning design and Class A finishes, the project struggled to compete on rent with a neighboring 400-unit complex. The larger project could spread the cost of high-end amenities—resort-style pools, fitness centers, and clubhouses—across a much larger base of residents.
"We have a 5% discount on our rents to this, call it a Class B-minus apartment, but they have Class A amenities," Syth explained. This highlights the importance of "placemaking" over mere "amenity loading." For smaller, dense communities, inexpensive but high-impact features like walking trails and connectivity to local infrastructure often provide a better return on investment than expensive facilities.
Broader Implications and the Future of Housing
The insights shared at PCBC reflect a broader national shift toward more efficient land use. As states like California pass legislation such as SB 9 and SB 10—which aim to streamline the creation of duplexes and small-scale multi-family housing in traditionally single-family zones—the role of the "density designer" will become even more central to the industry.
The long-term impact of these strategies extends beyond the balance sheets of developers. Increased density is widely cited by urban planners as a key component of environmental sustainability, reducing the carbon footprint of the "built environment" by minimizing sprawl and encouraging alternative transportation. Barry Long noted that the industry is moving away from the idea that a sidewalk is an adequate amenity, focusing instead on integrated trail networks that accommodate e-bikes and pedestrian traffic.
Ultimately, the successful builders of the next decade will be those who can navigate the tension between the "density minimums" required by cities and the "lifestyle maximums" demanded by buyers. As the PCBC session concluded, the consensus was clear: creativity in design is a tool, but market intelligence is the compass. Achieving density is no longer just about hitting a number; it is about creating a desirable place to live that also happens to be efficient.
