Nassau County weighs data-center regulations after committee report

Nassau County commissioners heard initial findings Monday from a fact-finding committee studying data-center development, kicking off a months-long process that could reshape how the fast-growing county handles a sector known for massive power and water demands.

The Board of County Commissioners held a public workshop Oct. 26 in Yulee to review the draft report from the Nassau County Fact-Finding Committee on Data Center Development. The committee examined operational characteristics, infrastructure demands, environmental considerations, community impacts, and proposed regulations for the board's consideration. Public comment remains open through Jan. 8, 2027, at 11:59 p. m., and residents who missed the workshop can review the report and submit feedback through the county's online portal.

What's happening

The fact-finding committee's report is a research document, not adopted policy. The board will use the findings to consider potential changes to Nassau County's Land Development Regulations that would govern whether, where, and under what conditions data centers could be built in the county.

A second public workshop is scheduled for Monday, Nov. 9, from 3 to 5 p. m. in the commission chambers in Yulee. Three formal public hearings will follow: the Planning and Zoning Board will hear proposed land-development regulation changes Dec. 1 at 6 p. m., and the county commission will hold hearings on those regulations Dec. 14 at 5 p. m. and Jan. 25, 2027, at 5 p. m.

All submitted comments will be read and provided to the board, according to county communications officer Sabrina Robertson. A video recording of the Oct. 26 workshop is available on the Clerk of Court's website, and the draft report and comment portal are posted at nassaucountyfl. com/1528/Data-Centers.

Why Nassau County is grappling with data centers

Data centers are among the most infrastructure-intensive facilities a local government can permit. A single large data center can draw tens to hundreds of megawatts of electricity — comparable to the load of a small city — and consume millions of gallons of water per day if it uses evaporative cooling to manage the heat generated by tens of thousands of servers.

Nassau County sits in a growth corridor between Jacksonville and the Georgia state line, with access to fiber networks, Interstate 95, and the Wildlight master-planned community anchoring development near Yulee. The county's combination of available land, relatively lower costs than metro Jacksonville, and proximity to major connectivity routes makes it the type of location data-center developers scout.

But the sector's arrival typically requires coordination with JEA or Florida Power & Light for utility-scale electric service, upgrades to transmission infrastructure, and answers to questions about who pays for capacity expansions. Data-center projects also carry implications for local property-tax revenue, jobs, and noise from cooling equipment at facility boundaries — impacts the fact-finding committee was tasked with mapping out before the county sets policy.

What it means for infrastructure and utilities

The largest open question hanging over potential data-center development in Nassau County is electric capacity. Projects of this scale usually negotiate service agreements directly with the utility — in Nassau's case, either JEA serving parts of the eastern county or Florida Power & Light elsewhere — and may require substation construction or transmission upgrades.

Who pays for those upgrades, and whether costs are passed to other ratepayers, is typically decided in public utility board meetings and in the terms of economic-development service contracts. If a data center locates inside JEA's territory, any large service agreement and major capital investments would appear on JEA board agendas and be subject to public scrutiny by Jacksonville ratepayers as well as Nassau residents.

Water demand is the second major variable. Data centers that rely on evaporative cooling use substantial volumes of water; those that use closed-loop or air-cooled systems use far less but may have higher electric loads or noisier operations. Nassau County's water supply comes from the Floridan Aquifer, regulated by the St. Johns River Water Management District through consumptive-use permits. Any proposal requiring millions of gallons per day would need district review and a demonstration that the withdrawal does not harm wetlands, springs, or neighboring wells.

Road impact tends to be minimal once a data center is operational — the facilities employ relatively few workers for their size — but construction phases bring heavy truck traffic for concrete pours, equipment delivery, and generator installation. The county's road network, already under pressure from residential growth along the SR 200 and A1A corridors and at Wildlight, would need to absorb short-term construction loads on top of the baseline traffic increase from new rooftops.

What it means for residents and property owners

Data centers generate significant property-tax revenue relative to their footprint because of the high value of servers, backup generators, cooling systems, and electrical equipment installed inside. For a county balancing service demands from rapid residential growth, that tax base can help fund roads, schools, and public safety without adding school seats or peak-hour cars.

The tradeoff is land use. A data center consumes large parcels — often 50 to 200 acres for a campus-scale project — that might otherwise be available for housing, retail, or lighter industrial uses that bring more jobs per acre. Nassau County's available industrial land is concentrated near Interstate 95 and the SR 200 corridor; locking in data-center zoning on key parcels would steer other growth elsewhere.

Neighbors of data-center sites typically raise concerns about noise from cooling fans and backup diesel generators, visual impact of large windowless buildings, and nighttime light pollution from security lighting. Setback requirements, landscaping buffers, and noise limits in the land-development code determine how much separation exists between a facility and nearby homes. The fact-finding committee's draft recommendations presumably address these standards, though the county has not released details of proposed regulatory language.

Environmental review is another resident concern. Data-center sites require clearing and grading, stormwater management for large impervious areas, and often wetland mitigation if the parcel includes jurisdictional wetlands. Projects trigger St. Johns River Water Management District stormwater permits and, if wetlands are affected, federal Army Corps of Engineers Section 404 permits. Nassau County's comp plan and land-development code layer additional local review on top of state and federal requirements.

Community input and the regulatory timeline

The public-comment period runs through Jan. 8, 2027, giving residents more than two months to review the committee's findings and submit feedback. The county is accepting comments online and will compile them for the board.

The Nov. 9 workshop will be the last informal discussion before the process shifts to formal hearings. The Planning and Zoning Board's Dec. 1 hearing will be the first official vote on any proposed changes to the land-development code. The board makes a recommendation, but final authority rests with the county commission at the Dec. 14 and Jan. 25 hearings.

Residents who want to influence the outcome should submit written comments through the portal, attend the Nov. 9 workshop, and speak at the December and January hearings. Under Florida's land-development law, the county cannot adopt regulations that are arbitrary or unsupported by the record, so public input and data in the fact-finding report will frame what the commission can legally enact.

The hearings will likely draw developers, utility representatives, environmental advocates, and neighboring property owners. Data-center projects elsewhere in Florida have sparked intense debate over whether the jobs-to-impact ratio justifies the infrastructure load, and Nassau County's process is unfolding as counties across the state grapple with the same calculus.

What happens next

The county commission will hold its second workshop Nov. 9 from 3 to 5 p. m. in Yulee. Public comment remains open until Jan. 8, 2027, at 11:59 p. m., via the county's online portal.

Three public hearings follow: the Planning and Zoning Board will review proposed land-development regulation amendments Dec. 1 at 6 p. m., and the county commission will vote on the regulations Dec. 14 at 5 p. m. and Jan. 25, 2027, at 5 p. m. All meetings will be held in the commission chambers in Yulee.

The fact-finding committee's draft report, workshop video, and comment portal are available at nassaucountyfl. com/1528/Data-Centers.

The bigger picture

Nassau County's deliberation on data-center policy reflects the tension running through Northeast Florida's growth boom: how to capture economic development and tax base without overrunning infrastructure or altering the character that attracts residents in the first place. As Duval County adds industrial capacity on the Westside and at Cecil Commerce Center, and as St. Johns and Clay counties push sewer and road extensions to keep pace with residential construction, Nassau is mapping out its own approach to the next wave of large-scale, high-impact development.

The outcome of the hearings scheduled through January will determine whether Nassau becomes a data-center destination or sets limits that steer the industry elsewhere. Either path has consequences for the county's tax base, utility grid, and the land available for the housing, schools, and businesses that follow population growth along the region's northern edge.