Dublin Unified School District opened its second brand-new school in three years this week, sending students through the doors of the new Shamrock Hills TK-8 School on Horizon Parkway. The campus welcomed its first wave of students this month, with plans to grow into a full TK-8 site over the next two school years. The timing was notable: the ribbon-cutting arrived just months after teachers in the same district walked off the job over pay and class sizes.
As per CBS News, the opening came with real growing pains for a district that keeps building new campuses while still figuring out how to pay the people who staff them. Shamrock Hills follows Dublin Unified's 2024 debut of Emerald High School, continuing a construction pace that's unusual for the Bay Area.
A $102.5 Million Campus Funded by Bonds and State Matches
The new school's price tag was covered through a combination of local bond revenue and state matching funds, according to Patch. Money from Dublin's Measure J bond was paired with matching funds from California Proposition 51, the $9 billion statewide school facilities bond voters approved in 2016, to cover the full $102.5 million construction cost.
Shamrock Hills sits on 12 acres at 5500 Horizon Parkway in Central Dublin's Boulevard development, near Don Biddle Community Park, per EDJOIN. The campus opened this month serving transitional kindergarten through sixth grade with roughly 750 to 820 students, and it will add seventh and eighth grade incrementally through the 2028-2029 school year, when it's expected to reach full capacity of more than 1,000 students.
Meet the Founding Principal Leading Shamrock Hills
Erin Magill was appointed to lead the new campus as its founding principal, according to The Independent. Magill previously served as assistant principal at Dublin's Murray Elementary School starting in 2021, where she oversaw student support services, intervention programs, and equity initiatives. She delivered monthly progress updates to the school board throughout the campus's construction, the outlet reported.
The Legal Wall Between Construction Bonds and Classroom Budgets
The juxtaposition of a shiny new school and a district squeezed for operating cash isn't a contradiction so much as a quirk of California law. Under Proposition 39 and state constitutional rules, revenue raised through local general obligation facility bonds like Measure J can legally be spent only on capital infrastructure and land acquisition, according to the California Debt Financing Guide. Districts are strictly barred from using that construction money for teacher salaries or general operating expenses, no matter how tight the general fund gets.
Dublin voters approved Measure J in March 2020, authorizing the district to issue $290 million in general obligation bonds to build new schools, modernize existing ones, and unlock matching state dollars, per Ballotpedia. The measure needed a 55% supermajority to pass, the threshold required for local school bonds under Proposition 39.
Still Recovering From Dublin's First Teacher Strike in Nearly 50 Years
That legal firewall between building money and operating money is exactly what fueled tension inside Dublin Unified earlier this year. More than 700 educators represented by the Dublin Teachers Association walked out for four days in March, marking the district's first labor strike in nearly 50 years. According to KQED, the educators were protesting class sizes, compensation, and staff cuts even as capital construction kept expanding around them.
The walkout ended with a tentative three-year, $12.9 million contract that gave educators a 2.3% ongoing raise retroactive to July 2025, raised district healthcare contributions to as much as 100% by 2028, and set lower class-size caps, as reported by Local News Matters. The deal also added certified staff positions, including a librarian at Emerald High School.
Rapid Growth That Keeps Outpacing Neighboring Districts
Shamrock Hills is the latest entry in a construction spree that began in August 2024, when Dublin Unified opened the first new high school built in Alameda County in more than 50 years. Emerald High School carried a total cost of $374 million and later added a second three-story academic tower in July 2025. The buildout traces back to a 92% population surge in Dublin between 2010 and 2020. That growth nearly tripled the district's enrollment, from roughly 4,300 students in 2009-2010 to close to 13,000 students today, Patch has reported.
That growth trajectory puts Dublin Unified in stark contrast with other Bay Area districts. San Jose Unified and Santa Rosa City Schools have both been forced to consolidate or close campuses amid declining enrollment tied to lower birth rates and high housing costs, according to CBS News. For Dublin, the challenge isn't finding enough students to fill new classrooms — it's finding enough money to staff them once the ribbons are cut.
