Model/Z and SoLa Impact Complete Modular Multifamily Building in Los Angeles in Under 12 Months
The five-story building proves that factory-built volumetric modular can be delivered in half the time of conventional construction in Los Angeles.
LOS ANGELES, June 10, 2026 — Model/Z today announced the completion of its debut modular multifamily building at 6200 Broadway in Los Angeles. The building is a five-story, 66-unit affordable apartment building developed in partnership with SoLa Impact. Every unit was manufactured off-site at Model/Z's factory in the Watts neighborhood of Los Angeles.
The project broke ground on June 11th, 2025 and received its Certificate of Occupancy on June 3rd, 2026, 11.7 months from start to finish. Most conventional construction projects in the Los Angeles area take upwards of 30 months to complete, and SoLa Impact's previous 23 ground-up projects averaged 26 to 27 months. This one took less than half that time.
Martin Muoto, Founder and CEO of Model/Z and SoLa Impact says, "After almost a decade building affordable housing the traditional way, experiencing major delays and cost overruns, and continuing to watch costs escalate, this project has been profoundly different. 11.7 months is a land speed record and beats our average time to complete a project by over 50%. Yet we believe we will the process down to over 9 months at scale and with further refinements of the pre-construction and construction process. Our Broadway project is just the first of many case studies.
The Modular Project at a Glance
5 stories
70 total modules (66 residential + 4 utility/common area)
66 one-bedroom modules at 419 sq ft
11.7 months from groundbreaking to Certificate of Occupancy
10 working days for structural set of all 70 modules
Per door all-in cost came in at the low $300,000s
Unit mix: 80% of units at 80% AMI; 20% of units at 110% AMI
The Model/Z Process
Model/Z builds finished fully furnished modules in its factory, transports them to storage for 3-4 months and then to the construction site, and erects them into place. Behind the process are dozens of small and medium sized changes in the way buildings are designed, massed, entitled, and constructed.
At the company's 150,000-square-foot production facility in Watts, each unit is assembled on a standardized steel chassis and moves through a 19-stage process, which was precision designed by engineers from aerospace and automotive manufacturing. Walls and ceilings arrive at the line pre-fitted with mechanical, electrical, and plumbing systems. Flooring, cabinetry, appliances, and fixtures are installed under controlled factory conditions, with 383 quality checkpoints designed into the process. By the time a unit is wrapped for delivery, everything inside the unit is complete and inspected.
At the Broadway project, 70 Model/Z modules were stacked five stories in just 10 working days. The fastest single module was set in 19 minutes. Over the course of the project, average set time was 36 minutes as the crew refined the process.
“We have built 24 multifamily projects across Southern California, and what we experienced at 6200 Broadway was fundamentally different. There were no long lead items stalling the schedule. Model/Z's units arrived finished and ready to stack. It was an extremely streamlined construction process, and the timeline speaks for itself,” says Kathleen Kim, SVP, Construction at SoLa Impact.
What This Means for The Future of Housing
A faster delivery timeline means less time carrying debt, lower interest expense, reduced builder's risk, and more months of rental income that would otherwise be lost to an extended construction period. For affordable housing developers looking to reduce cost and improve yield, that compression in time translates to more than 200 basis points of IRR improvement, all else equal.
LAist reported in 2023 that the median cost to build a single unit of affordable housing in Los Angeles County reached approximately $600,000. 6200 Broadway came in at the low $300,000s per door all-in, about half the LA County median for conventional affordable construction. As Model/Z's manufacturing scales, the company's target drops to under $250,000 per door.
And the 6200 Broadway timeline does not yet reflect what Model/Z's software system can deliver. The company's Z/Suite platform, which handles site identification, building design, proforma analysis, and permitting coordination, is designed to compress the pre-development cycle by an additional 3 to 6 months and cut soft costs by more than 50%. That upside was not yet fully applied on this first project. Model/Z is actively working with developers, municipalities, and community organizations on projects across California.
About Model/Z
Model/Z is a housing innovation company transforming how affordable housing is designed and delivered. Built by leaders from the aerospace and automotive industries, the company combines an AI-powered development platform with precision-engineered, steel-frame volumetric modular construction to dramatically reduce costs and compress timelines. Its proprietary AI-enabled software enables projects to move from site selection through design and permitting in a fraction of the traditional time, while its factory-built units—produced in Watts, South Los Angeles— deliver durable, all-electric, high-quality housing. By partnering with developers, municipalities, and institutions, Model/Z is scaling a faster, more cost-effective approach to addressing California’s housing shortage. Learn more at www.model-z.com.
About SoLa Impact
SoLa Impact is a family of social impact real estate funds with a double-bottom line strategy focused on preserving, refreshing, and creating high-quality, affordable housing in low-income communities. The company's proven track record leverages data-driven social impact strategies to deliver superior financial returns. Learn more at https://solaimpact.com.
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