Twenty-five people at a pharmaceutical plant on Horse Creek Drive found out this summer that their jobs end this month. DesigneRx Pharmaceuticals, the manufacturing arm of Polaris Group, is shutting down the larger of its two Vacaville facilities after 24 years in the city. Layoffs start September 21 and wrap by mid-October, according to the WARN filing reported by the Press Democrat. Five employees will stay behind just long enough to decommission the building and hand the keys back to its owner.
If you've been comparing North Vacaville to other Solano County neighborhoods, you've probably run into some version of the pitch: this is the corner of the city where biomanufacturing is taking off, where companies like Agenus, LG Chem, and Transwestern have been buying land for a life sciences corridor that's supposed to bring thousands of jobs. That pitch isn't fabricated. The land deals happened. But the plant closing this month sits on the same stretch of the same business park those deals were supposed to fill, and it's the first of those names to make news for closing rather than building.
The Land Deals Behind the Story
Vaca Valley Business Park runs along the interchange of Interstate 80 and Interstate 505, right against the boundary of North Vacaville's North Village specific plan area. Biomanufacturers have operated there since Alza arrived in 1987, and Solano Community College runs its biomanufacturing training program directly across the street. In October 2020, the city launched a formal push to fill roughly 300 acres of that footprint with new biotech tenants, branding it a future hub.
The land started moving fast. In 2021, Agenus bought about 120 acres from developer A.G. Spanos at roughly $3 a square foot, planning a half-million-square-foot manufacturing building on 80 of those acres and flipping the rest. That November it sold 15 acres to Polaris. The following year, Agenus sold another chunk to Transwestern Ventures, and in December 2022 an Agenus affiliate sold 15 more acres to LG Chem for $13.1 million, or just over $20 a square foot, according to the Press Democrat's reporting on the deal.
Here's where the story turns. The same land that traded hands at roughly $20 a square foot in 2021 and 2022 is now sitting on the market again, and the price has been cut in half.
| Transaction | Year | Price per square foot |
|---|---|---|
| Agenus buys ~120 acres from A.G. Spanos | 2021 | ~$3 |
| Agenus sells 15 acres to Polaris | Nov 2021 | ~$20 |
| Agenus affiliate sells 15.04 acres to LG Chem | Dec 2022 | $20.05 |
| Polaris/DesigneRx relists its Horse Creek Drive parcel | 2026, no buyer yet | asking $10-14 |
That last line is the one worth sitting with. Polaris has had this land listed for well over a year, according to commercial broker Eric Dakin, and it's still asking below half of what it paid to acquire it. Meanwhile, nearly four years after buying its own 15 acres next door, LG Chem still has no construction timeline. It remains committed to the city, according to Dakin, but nobody, including LG Chem, is saying when ground gets broken. Transwestern's approved 375,000-square-foot campus, Axiom Point, is still looking for a company willing to sign a build-to-suit lease.
Dakin put the shift plainly:
"Everyone had good intentions initially. Then the markets shifted and venture capital money changed."
That's the mechanism. The land deals weren't fake, and the companies that bought in weren't bluffing. But biomanufacturing construction runs on venture funding, and venture funding for early-stage biotech tightened considerably after 2021 and 2022, the exact years these parcels traded hands. The buildings that depend on that funding are still waiting. The one facility that was actually operating on that stretch of road is now the one closing.
What's Actually Running Next Door, Versus What's Still a Plan
Separate what's already operating from what's still a rendering. Genentech has operated its Vacaville campus since well before this initiative existed, growing from 400 employees in 2000 to 1,200 by 2017 as it expanded to 427,000 square feet across ten buildings. Thermo Fisher also has an established facility in the city. Those are operating employers with a multi-decade track record, not land purchases waiting on a funding environment to turn back around.
The newer names, the ones attached to the "hub" narrative that gets repeated in market write-ups, are a different category entirely. A city-commissioned economic analysis completed in early 2023 projected the biomanufacturing push could eventually bring 2,500 jobs and $2.1 billion in investment to Vacaville. That projection was built on land purchases, not staffed buildings. Three and a half years later, one of the five original companies is closing a plant, one has no construction date, and one is still marketing a finished campus with nobody inside it.
The city has also reorganized around this. Don Burrus, the economic development director who championed the initiative from its 2020 launch, retired in December 2025. The city merged its economic development and community development departments into a single office in January 2026, now led by Erin Morris. None of that means the biotech push is dead. It means the person who spent five years pitching it moved on right as the pitch started running into headwinds.
The Rooftops Don't Need the Biotech Story to Work
Here's the part that actually matters if you're deciding whether to buy in North Vacaville: the neighborhood's housing growth was never contingent on the business park filling up. North Village, the specific plan that covers the residential side of this same footprint, was approved back in 1995 and covers about 880 acres bounded by Midway Road, Leisure Town Road, Vaca Valley Parkway, and Interstate 505. Its first phase, with 1,348 units, is nearly built out already. Its second phase, another 1,151 units, got City Council approval in November and December 2024 and is moving forward on its own separate track.
In other words, the rooftops keep going up whether or not LG Chem ever pours a foundation. If you're weighing North Vacaville against a neighborhood elsewhere in the county, the honest way to price it is on what's built and staffed today, the commute pattern to I-80 and I-505, the proximity to the college, the established employers already running shifts. Treat the still-unbuilt biotech campuses as a maybe, not a given, and you won't be disappointed if the maybe takes another few years to resolve either way.
A Short FAQ
Does the DesigneRx closure mean home values in North Vacaville are at risk? The closure affects roughly 25 positions at one leased facility, not the broader employment base of the business park. Genentech and Thermo Fisher continue operating as they have for years. One plant closing is a data point about the pace of new biotech investment, not a signal about the neighborhood's existing job base.
Should I wait to buy until the biotech buildout is finished? That's a personal timeline question more than a market one, and it depends on your own plans. What the research shows is that the buildout has no confirmed completion date. LG Chem hasn't set a construction start as of mid-2026, and Transwestern's finished campus still has no tenant. If your decision to buy is contingent on those jobs materializing, you may be waiting past the horizon anyone can currently predict.
If you're comparing North Vacaville to other parts of Solano County and want the real picture, not the pitch, that's the kind of groundwork we do before you ever look at a listing. Michael Hulsey & Associates has spent years tracking what's actually happening in these neighborhoods, not just what's been announced. Reach out or get your free home valuation to start the conversation with someone who already did the homework.
