Comprehensive Plans and Future Land Use Maps for Data Center Sites

A comprehensive plan (also called a general plan, master plan or land use plan) is a county or city’s long-range policy for growth, usually looking 10 to 20 years ahead. Its centerpiece is a future land use map, which assigns each area a designation such as rural, residential, employment, industrial or mixed use. The plan does not itself grant or deny development rights. Zoning does that. But the plan is the yardstick that staff, planning commissions and elected boards use when deciding whether to approve a rezoning, a special use permit or a new zoning district.

How much weight the plan carries depends on state law. The American Planning Association distinguishes states with strict consistency requirements, such as California and Florida, from states with looser ones, such as Tennessee and North Carolina.¹ In Virginia, the zoning statute tells localities to give “reasonable consideration” to the comprehensive plan along with existing use and character, suitability, growth trends, transportation, schools, flood plains and other factors.² A 2024 Virginia decision, as reported by Virginia Lawyers Weekly, treated plan alignment as one of several statutory factors and said a rezoning that does not match the plan is not arbitrary for that reason alone.⁶ North Carolina takes a procedural approach: the planning board comments on consistency and the governing board adopts a consistency statement, and a 2011 UNC School of Government explainer noted that a finding of inconsistency did not by itself prevent adoption.⁹

Even where the law is loose, the plan shapes the politics. A staff report that says a data center “is not consistent with the future land use designation” is the first line opponents quote at a hearing. That is why the plan question belongs in the first site screen, before the zoning path is chosen.

Most plans written before 2020 do not mention data centers by name, so the reader has to infer intent from the designation and the text policies behind it. Newer plans increasingly address the use directly. Loudoun County’s Board of Supervisors, for example, amended the 2019 General Plan on March 18, 2025 to designate data centers a conditional use, at the same time as it required special exception approval in the industrial districts where they had been allowed by right.³ In 2022 the same board directed that data centers be kept out of certain suburban place types and that use-specific design and residential-proximity standards be written into the zoning ordinance.¹⁰

Three layers deserve as much attention as the color on the map. First, growth or service boundaries, which often decide whether public water and sewer can be extended; see annexation and utility service areas. Second, transportation and utility elements, which show planned roads, transmission lines and substations. Third, the text policies themselves, which may set performance expectations such as buffers or design quality even where the map looks favorable.

If the target parcel’s designation does not support a data center, the usual answer is a comprehensive plan amendment, filed before or alongside the rezoning. Procedures differ by state. In Virginia, the governing body may prepare an amendment itself or direct the planning commission to prepare one and hold a hearing within 60 days or a longer period it sets; the board must then act within 90 days of the commission’s recommendation, or 150 days for a locality-initiated amendment covering more than 25 parcels.¹¹ Property-owner requests are handled under each locality’s own policy, which may limit them to an annual cycle.

Florida offers a streamlined path for small-scale development amendments, but only for a use of 50 acres or fewer and only for a future land use map change, plus text tied directly to that map change.⁷ Most hyperscale campuses exceed that size, so they go through the full amendment process.

Virginia adds a separate plan test for public facilities. Once a plan is adopted, streets, public buildings and public utility facilities generally may not be built unless the adopted plan shows them or they are treated as shown under the statute’s review provisions.¹² That review can apply to the substations and lines a campus depends on, even when the data hall itself is a private use. For how hearings run once filed, see public hearings for data center projects.

Northern Virginia and central Maryland show how plan decisions now drive the data center map. In Prince William County, the Digital Gateway began with a plan change that opened rural land near Manassas National Battlefield Park to data centers, followed by rezonings heard in December 2023.⁴ A circuit court voided the rezonings in August 2025 after finding the county’s hearing notices did not meet state and local requirements, and the Court of Appeals upheld that ruling on March 31, 2026.⁴ QTS withdrew its remaining appeal on July 2, 2026, ending a project that would have held more than 22 million square feet across about 2,000 acres.⁸

The same board has also used the plan to say no. In July 2026, supervisors voted 8–0 to reject a comprehensive plan amendment that would have redesignated about 1,930 acres in the Gainesville District for a large data center campus.¹³ Frederick County, Maryland, took the opposite approach and planned for the use: the County Council approved a Critical Digital Infrastructure overlay as an amendment to the Livable Frederick plan in December 2025, expanding the Eastalco growth area around the former aluminum plant.⁵¹⁴ The initial proposal covered about 2,500 acres; the planning commission recommended about 1,600.¹⁴

A plan rewrite is the moment when a jurisdiction decides where data centers belong for the next decade. The Urban Land Institute’s guidance for local governments urges planning for data centers in advance, including location criteria and a model ordinance, rather than handling each application as it comes.¹⁵ For a buyer, a pending update can cut both ways. A draft that adds an employment or technology designation near transmission can lift a site’s prospects. A draft that moves the use to conditional status, narrows eligible areas or adds residential distance standards, as Loudoun and Frederick did, can remove a site from contention before any moratorium is announced.³⁵ See data center moratoriums and local restrictions for the related warning signs.

Plan language also feeds directly into zoning text. Policies adopted in a plan update tend to reappear as use standards, setbacks and overlay boundaries in the ordinance that follows, which is the subject of data center zoning ordinances and overlay districts.

1. 01Pull the adopted plan, the future land use map and any area or small-area plans that cover the parcel. Note the adoption date and any amendments since.
2. 02Read the designation’s text, not just the legend. Look for limits on building size, height, use intensity and residential proximity.
3. 03Check growth, sewer and water service boundaries, and the utility element for planned lines and substations.¹²
4. 04Find out whether a plan update or data-center-specific amendment is underway, and read the drafts and staff reports.³
5. 05Ask staff whether owner-initiated amendments are accepted, on what cycle, and whether they can be heard with a rezoning.¹¹
6. 06Confirm the state’s consistency standard with land use counsel, and budget time for an amendment if the plan does not support the use.¹

None of this replaces a conversation with planning staff, and the county attorney’s view of consistency is the one that counts. For context on how officials weigh these questions, see the guide for county officials and planners. If you want the plan, zoning, power and land questions screened together, get a site reviewed.