The big picture: America has fewer than 40 dry docks to maintain an entire Navy and commercial fleet – and the White House just directed the Pentagon to find land for a fifth public shipyard, the first in 80 years.
One of the leading candidates isn't new land at all. It's 350 acres sitting quietly in Vallejo, California at the northernmost end of San Francisco Bay.
Driving the news: Mare Island opened in 1854 as the Navy's first shipyard on the West Coast. Submarines were built there for four decades before closing in 1996. It is now officially on the market.
JLL announced last month it's advising owner The Nimitz Group on leasing or partnering out the site's four operational dry docks and two million square feet of maritime-ready buildings.
The timing lines up with The President’s August 13th memo ordering a fifth-shipyard plan within 120 days that is "proximate to the United States Pacific Fleet."
I spoke with Tom Taylor, a former Air Force officer who leads JLL's global aerospace and defense practice from Washington.
Taylor frames Mare Island less like a real estate listing and more like a cause:
"We have a world-class Navy and Coast Guard, but we're facing a profound operational readiness crisis," he told Standard & Works. "Our maintenance and repair need is vastly outpacing the capacity of our facilities."
The result, he says, is a problem "costing the US billions of dollars as ships and submarines sit idle," and a direct threat to national security.
Building a single new dry dock costs roughly $1 billion and takes five-plus years. Mare Island already has four.
By the numbers:
4 dry docks, 3 shipways, 2 miles of seawall, 1 mile of berthing
30-foot channel depth with deepwater access, and over 30 megawatts of available power capacity
~350 acres, larger than existing public shipyards at Pearl Harbor (148 acres) and Portsmouth (297 acres)
~2 million square feet of existing maritime facilities
60 miles from Silicon Valley – positioning Mare Island to tap the roughly 20% of U.S. AI talent based in the Bay Area, per JLL
Peak employment: 40,000 workers in the 1940s; 7,500 when the base closed in 1996, which made it Solano County's second-largest employer
The pitch: The case for Mare Island goes beyond steel. Its strength is the ecosystem it sits in.
"Ecosystems in the defense industrial base are critical," Taylor says, pointing to Anduril's Arsenal One buildout in Ohio as proof a single catalytic project can seed an entire regional supply chain.
Historic hubs like Southern California and Hampton Roads have held their status because those places have all the pieces — public-sector access, primes, suppliers, and a university talent pipeline.
Mare Island, in Taylor’s telling, connects the dots: existing infrastructure, a Bay Area tech corridor next door, and a workforce pipeline California is already funding.
"Leveraging the resources and technology in that ecosystem is extremely powerful right now," Taylor says.
"Combined with reinvesting in and revitalizing those assets, it creates a very unique opportunity – not only to create that pressure release valve in maritime industrial and shipbuilding maintenance and repair, but to really drive a world-class maritime industrial ecosystem of the future."
What it could become: when I asked whether Mare Island is best positioned to serve as a Navy public shipyard, home to a private shipbuilder, or autonomous-vessel testbed, Taylor's answer was "all of the above."
He said the infrastructure is general-purpose enough to flex toward whichever partner brings the capital and mission.
A residential master plan is attached too, meant to house the workforce a revived shipyard would need to attract in one of the country's most expensive states to live.
Gov. Gavin Newsom, notably, visited Mare Island in late August with $8.2 million for a Cal Poly shipbuilding innovation center.
What's next: As JLL shops the deal, just 90 days are left on the clock for the Pentagon's shipyard plan to take shape. Whether Washington picks a legacy yard with a 172-year head start, or starts from scratch, is the billion-dollar-per-dry-dock question.
👀 What We’re Also Watching: The August 13th Presidential memo gave a 90-day deadline (now less than 60-days away) for a plan to establish a submarine component repair center.
What it entails: “The plan shall identify geographically centralized locations proximate to major road, rail, and river transportation networks, and include such resourcing requirements as necessary to maintain at least one ‘ship set’ of spare equipment for the Los Angeles, Virginia, Seawolf, Ohio, and Columbia classes.”
