Hamilton County, TN Zoning: CHCRPA & the 2026 Data Center Pause

Zoning in unincorporated Hamilton County is administered jointly with the City of Chattanooga through the Chattanooga-Hamilton County Regional Planning Agency (CHCRPA) -- and starting July 15, 2026, a one-year, commission-approved moratorium blocks new data centers in the county's unincorporated areas while a brand-new county Planning Department drafts permanent standards. Here's what's actually going on, and what it means for land near a proposed or existing site.

This page covers what's specific to Hamilton County. For the general explanation, see the national guide.

Who actually administers zoning here: the CHCRPA

Zoning in unincorporated Hamilton County is not administered by a standalone county zoning department -- it runs through the Chattanooga-Hamilton County Regional Planning Agency (CHCRPA), a genuine joint city-county agency staffed by professional planners, urban designers, and GIS staff, based at 1250 Market Street in Chattanooga's Development Resource Center. CHCRPA maintains the official zoning map and the county's zoning code, alongside its counterpart role inside Chattanooga's own city limits, reflecting how tightly the city's growth and the county's unincorporated fringe are planned together. Building permits and inspections for unincorporated county land, separately, run through the county's own Building Inspection Department (423-209-7860) and Development Services division -- worth knowing as a second, distinct office from CHCRPA when you're ready to build rather than just confirm a zoning district.

A second structural fact worth knowing: Hamilton County only stood up its own dedicated county Planning Department on July 1, 2026 -- a genuinely new addition to the county's land-use apparatus, separate from CHCRPA, whose first major initiative was the data center moratorium described below. Confirm directly with the county which office -- CHCRPA or the new Planning Department -- currently owns a specific zoning question, since that division of labor is still settling.

The July 2026 data center moratorium: what it is and why it happened

Hamilton County Mayor Weston Wamp proposed a one-year moratorium on new data centers in the unincorporated parts of the county in late June 2026, and the County Commission voted unanimously to approve it on July 15, 2026. The stated purpose, laid out in the Mayor's own office materials, is to buy time for the county's new Planning Department to research other communities' data-center regulations, meet with the Tennessee Valley Authority, Chattanooga's EPB utility, and local water providers on the power and water demands these facilities place on shared infrastructure, and then draft permanent zoning-code standards specifically written to survive a legal challenge -- a direct, stated response to the current absence of any Hamilton County zoning rule written with data centers in mind.

This is part of a genuinely fast-moving, regional pattern: neighboring Bradley County adopted its own strict data-center rules in April 2026, and multiple other Tennessee communities passed similar temporary bans amid a broader statewide data-center construction boom through 2025-2026. Hamilton's version is explicitly a pause, not a permanent ban -- it applies only to new projects in unincorporated county territory (not inside Chattanooga or the county's other incorporated towns, and not to projects already underway before the vote), and it is designed to end once new permanent standards are in place, sometime around mid-2027 on the stated one-year timeline.

What this means if you're evaluating land for or near a data center

If you're evaluating unincorporated Hamilton County land specifically as a data-center site, the moratorium means a new application cannot move forward under the county's current process as of mid-2026 -- the practical next step is to ask the new Planning Department directly what the moratorium currently covers, what its expiration date is, and whether the county has published (or is close to publishing) the permanent zoning standards it's working toward, since those standards -- not the pre-2026 zoning code -- will determine what's actually buildable once the pause lifts. If a parcel sits inside Chattanooga or another incorporated town rather than unincorporated county territory, this county-level moratorium doesn't directly apply, but that same town's own zoning and any parallel policy work is worth checking separately.

If you're evaluating land near a site where a data center might be proposed -- for the noise, power-line, water-demand, or traffic concerns these facilities can bring -- the moratorium period itself is worth watching: the standards the county adopts once it expires will set the durable rules for where these facilities can go and what conditions apply, and the county's own process (public meetings with TVA, EPB, and water utilities) is a real avenue to weigh in before that happens rather than after the fact.

Hamilton County, Tennessee Zoning: CHCRPA and the 2026 Data Center Moratorium

Who actually administers zoning here: the CHCRPA

The July 2026 data center moratorium: what it is and why it happened

What this means if you're evaluating land for or near a data center

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