St. Croix County, Wisconsin
Town of Emerald is a town in St. Croix County, Wisconsin. Town of Emerald adopts its own zoning, so inside its limits Town of Emerald’s rules apply, not the county’s. Septic permits inside Town of Emerald come from St. Croix County (St. Croix County Community Development Department · 715-386-4680). 11 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the St. Croix County page.
Building work inside Emerald town.
building permit fee: 35 USD (The listed page does not identify the covered project types.)
“bulding permits are required for the town of emerald building permits $35.00 if you are doing maintenance such as shingling or residing house, no permit is required.”
Land inside the Town of Emerald; St. Croix County General Zoning is the applicable zoning program.
“st. croix county general zoning applies to all towns and unincorporated areas, except the towns of forest, hudson, st. joseph, and troy.”
Structures inside Emerald town under St. Croix County General Zoning.
“setback requirements vary depending on the zoning district and the type of structure being constructed.”
Private onsite wastewater systems inside Emerald town.
“a state sanitary permit is required for the installation of a private on-site wastewater treatment system (powts). a county sanitary permit is required for the repair, reconnection, or rejuvenation of a powts, or the installation of a non-plumbing sanitation (i.e. privy, composting toilet, etc.)”
POWTS installation, repair, reconnection, rejuvenation, and non-plumbing sanitation inside Emerald town.
“a sanitary permit is required before obtaining a building permit from your local municipality. a sanitary permit may only be submitted by a licensed plumber.”
Private onsite wastewater systems inside Emerald town.
routine service or inspection interval: per 3 years (Unless otherwise specified in a management plan.)
“staff will conduct at least one inspection for all work requiring a sanitary permit.”
Privies, composting toilets, and other non-plumbing sanitation inside Emerald town.
“a county sanitary permit is required for the repair, reconnection, or rejuvenation of a powts, or the installation of a non-plumbing sanitation (i.e. privy, composting toilet, etc.)”
Land divisions inside Emerald town.
“shoreland, floodplain, land division, lower st. croix riverway overlay districts, and sanitary apply to all townships.”
Driveway construction inside Emerald town.
driveway permit fee: 50 USD · fine: 50 USD (Permit not obtained before construction.)
“driveway permits $50.00 ***permits need to be obtained before construction occurs or a $50.00 fine will be assessed***”
Town building and driveway permits inside Emerald town.
building permit fee: 35 USD · driveway permit fee: 50 USD · driveway permit violation fine: 50 USD (When the permit is not obtained before construction.)
“driveway permits $50.00 ***permits need to be obtained before construction occurs or a $50.00 fine will be assessed***”
Building, driveway, sanitary, and county land-use permits affecting land inside Emerald town.
“to apply for a permit, variance, rezoning, waiver, or land division, please fill out and complete the appropriate application for your request.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Emerald or St. Croix County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Emerald publishes no rule on the point, not that none exists. St. Croix County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Emerald means bringing your own water and power. The kit we’d start with:
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