St. Johns County unanimously pauses medium- and large-scale data center applications through October 2027

What happened

The County Commission approved the ordinance 5-0 on Nov. 3. District 4 Commissioner Krista Joseph made the motion, according to Action News Jax. Jacksonville Today and the St. Johns Citizen both reported the vote as unanimous.

The ordinance is a temporary planning pause, not a permanent ban. Starting Nov. 15, 2026, the county will not accept, deem complete, process, review, schedule for public hearing, approve, or issue discretionary development approvals for medium-scale or large-scale data center projects. That covers Comprehensive Plan amendments, rezonings, Planned Unit Developments, special use permits, major modifications, site plans, development permits and orders, and building permits that need a prior discretionary approval.

The pause ends on the earliest of three dates: Oct. 31, 2027; the day the county adopts permanent regulations; or repeal by a later ordinance. Some outlets said the pause started immediately or on Nov. 13. The ordinance text and the county agenda item both set Nov. 15 as the effective date, and that is the date we use here.

Why the county acted now

The Comprehensive Plan and Land Development Code do not contain standards written for data centers. Deputy County Attorney Kealey West told commissioners on Oct. 6 that the review would look at electricity demand, water use, cooling systems, infrastructure needs, environmental impacts and compatibility with nearby properties, according to the Jax Daily Record.

The board directed the County Attorney's Office on Sept. 1 to prepare a temporary moratorium ordinance. The first presentation required by board rules came on Oct. 6. The Nov. 3 vote was the enactment step.

State law is part of the timing. The ordinance recitals cite Chapter 2026-65, Laws of Florida (SB 484), which created new rules for large-scale data centers and section 163.326, Florida Statutes. That statute recognizes local comprehensive planning for these facilities and directs the Office of Program Policy Analysis and Government Accountability (OPPAGA) to finish an interdisciplinary study by July 1, 2027. West told the commission that state legislation limits how burdensome or restrictive local development rules can be, and that the county can use a temporary planning moratorium but cannot impose a permanent ban.

Jax Daily Record cited a September Pew poll finding that 60% of U.S. adults feel uncomfortable with a data center nearby, and said public comment at the meeting mirrored those worries.

What counts as medium- or large-scale

The ordinance borrows definitions from section 373.203, Florida Statutes, and adds project definitions for this pause.

• A large-scale data center project meets the state's Large-Scale Data Center definition, is phased so the phases together become one, or is designed as a campus-style data center development.
• A medium-scale data center project is generally described as onsite or regional enterprise, co-location, or similar facilities with about 2,000 to 5,000 servers and a power capacity of 5 megawatts to 49 megawatts.

Smaller facilities outside those definitions are not covered. Exemptions include complete applications the county determined sufficient before Nov. 1, 2026; existing lawful data centers; routine maintenance, repair or replacement; interior renovations; emergency work; and utility maintenance. Action News Jax reported that county officials said there were no active data center applications in St. Johns County at the time of the vote.

What staff will study during the pause

Section 7 directs staff to evaluate future land use and zoning, compatibility, campus size, transmission infrastructure, backup generation and fuel storage, cooling technologies, potable and reclaimed water, wastewater, stormwater, environmental impacts, noise, lighting, setbacks and buffering, emergency management, concurrency, transportation, phased development, decommissioning, practices used by other Florida jurisdictions, and OPPAGA recommendations when available. Staff are also to coordinate with electric utilities and the St. Johns River Water Management District, and to conduct stakeholder outreach, before bringing Comprehensive Plan or Land Development Code recommendations to the board.

Nearby counties and same-day growth context

Jax Daily Record reported that Nassau County approved its own temporary data center moratorium on June 8, for up to 12 months, and that its fact-finding committee released a draft report on Oct. 21, with a commission vote on recommendations scheduled for Jan. 25. Jacksonville Today also named Clay, Flagler, Lake and Volusia among Florida governments that have passed similar pauses.

At the same Nov. 3 meeting, commissioners denied, 4-1, a major modification for a light industrial and flex warehouse project at 3960 Inman Road that would have raised the approved building area from 125,000 to 250,000 square feet. Jax Daily Record reported the denial cited traffic on State Road 16, already over capacity and near 180% of capacity once approved but unbuilt projects were counted. That vote is not about data centers; it shows how closely the board is weighing roads and utilities for nonresidential growth.

What it means if you're moving here

For most house hunters, this vote does not change a purchase checklist overnight. There were no active data center applications when the board voted, according to Action News Jax, and the pause lasts into late 2027 unless permanent rules arrive first. It is still a signal about how the county will treat large utility users while it rewrites standards.

• Nocatee and Northwest St. Johns: these growth areas sit near corridors and utility networks that often attract industrial and campus-style projects. The pause does not freeze housing entitlements already approved. Medium- or large-scale data center proposals in unincorporated county jurisdiction will wait until staff finish the study and the board decides on permanent rules.
• World Golf Village and the I-95 / SR 16 area around St. Augustine: the Inman Road denial shows traffic capacity on SR 16 is already a live issue for nonresidential projects. A future data center campus would face that road and utility conversation, plus whatever standards the county writes next year.
• Ponte Vedra Beach and coastal neighborhoods: the ordinance is a county planning tool for unincorporated applications of the sizes defined above. Ask the usual questions about water, power reliability and nearby nonresidential zoning; this pause targets medium and large facilities, not everyday commercial uses.
• Bills and utilities: residents raised electricity and water use at the meeting. The county has not adopted new rate rules with this ordinance. It has bought time to measure demand, cooling methods and reclaimed-water options before writing standards. When comparing neighborhoods, ask the seller and the utility about recent rate trends and any large industrial load planned nearby.
• Homes for sale: filtered community listing pages on ancientcitystays.com remain the residential search path we point relocators to for St. Johns County.

Our take

This is our opinion, based on the ordinance and reporting cited below.

The practical effect for people moving here in 2026 and early 2027 is a planning timeout, not a finished land-use map. The county is saying its current code is silent on a use that can draw large amounts of power and water, so it will not process those applications while it writes standards and waits for the state's July 2027 study. That is narrower than a ban, and state law, as West described it, appears to block a permanent ban anyway.

Commissioner Christian Whitehurst supported the pause while arguing that demand for data capacity also comes from everyday online use. The St. Johns Citizen quoted him saying Florida Power & Light staff had told him the county was unlikely to be a data center candidate over the next 20 years. Jacksonville Today quoted Commissioner Ann Taylor from June warning that if neighboring counties close their doors, St. Johns could become the easier path. Clear rules still matter before an application arrives.

For relocators, watch the study topics that touch daily life: transmission capacity, water and reclaimed water, noise and buffering next to homes, and how new standards fit with roads already strained in places like SR 16. Those are the same infrastructure questions that show up in housing growth debates across Nocatee, Northwest St. Johns and World Golf Village.

What to watch next

• Whether staff release interim findings or draft Comprehensive Plan and Land Development Code language before the Oct. 31, 2027 sunset.
• The OPPAGA statewide study due by July 1, 2027, and how the county folds that into local recommendations.
• Nassau County's Jan. 25, 2027, vote on its fact-finding recommendations.
• Any complete applications filed before the Nov. 1, 2026, sufficiency cutoff, which the ordinance exempts.
• Board workshops that pair data center standards with broader utility and road capacity discussions.