The Town of Plymouth in Juneau County requires a town building permit before any construction, enlargement or alteration begins.1 Juneau County administers sanitary permits for private septic systems, while county permits also apply in mapped shoreland and floodplain areas.23 The town's general zoning rules for RV living, tiny homes, lot size and setbacks could not be confirmed, so ask the Town Clerk about a specific parcel before buying.
At a glance
- Building permit
- Required before construction, enlargement or alteration1
- Building permit fees
- $100 for a new home; $50 for other structures4
- Septic
- Juneau County sanitary permit process applies25
- Temporary camping
- Annual town approval required; $10 per camper6
- Owner-builder
- Owner-occupants may use the state contractor-credential exemption7
- Private well
- Obtain a Wisconsin DNR notification number before construction8
- Driveway
- Town permit required for a new or improved driveway9
Who to call
Building permits
Town building permits and driveway permit applications
W9902 State Road 82 | Elroy, WI | 53929-9453
Zoning
Juneau County Sanitation & Zoning Department
County sanitary, shoreland and floodplain questions
650 Prairie Street Mauston, WI 53948
Zoning
Juneau County Shoreland Zoning
County shoreland building permits and shoreland ordinance questions
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Town of Plymouth means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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Do you need a building permit in the Town of Plymouth, Wisconsin?
Yes. The Town of Plymouth requires a building permit before any construction, enlargement or alteration begins, and the work must follow Wisconsin State Code standards and current ordinances.1 The published town fee is $100 for a new home building permit and $50 for a building permit for any other structure.4 New one- and two-family dwellings, including manufactured-home installations, are also governed by Wisconsin's Uniform Dwelling Code.10
An owner who lives or will live in a one- or two-family dwelling may apply for the state owner-builder exemption from dwelling-contractor certification and qualifier requirements, but the exemption does not remove building permit or code obligations.7 For a new home, ask the Town Clerk which application and plan materials to submit and which inspector is assigned to the UDC permit.11
Who issues building permits in the Town of Plymouth?
The Town of Plymouth directs applicants to the Town Clerk before making property changes and provides a general building permit application, a Wisconsin building permit application and a planned-layout form.12 The Town Clerk's office is at W9902 State Road 82 in Elroy and lists 608-462-5034 and [email protected].13
For a new one- or two-family dwelling, required UDC inspections include footings, foundation and reinforcement, rough work, insulation and a final inspection; the applicant notifies the inspector identified on the UDC permit.14 A separate town driveway permit is required for a new driveway or an improvement to an existing driveway.9 Juneau County, rather than the Town Clerk, handles sanitary permits, and the county may also require shoreland or floodplain approval for a mapped site.23
Does the Town of Plymouth have zoning?
We could not confirm a general Town of Plymouth zoning ordinance or a complete district map, so do not assume that a parcel is unrestricted. Ask the Town Clerk to identify any town land-use rule for the parcel and ask Juneau County Sanitation & Zoning whether county shoreland or floodplain controls apply.
Juneau County requires county approval before construction in mapped shoreland and floodplain areas, including land within 1,000 feet of a lake, pond or flowage and within 300 feet of a river or stream.3 In mapped floodplain areas, a land-use permit is required before development, repair, modification, an addition or a change in use, including sewer and water facilities.15
On shoreland parcels, Juneau County requires buildings and structures to sit at least 75 feet from the ordinary highwater mark of navigable waters, with lesser setbacks possible only for stairways, walkways and piers.16 A main building on a shoreland lot without public sewer needs at least 20,000 square feet and 100 feet of frontage at the water’s edge.17 With public sewer the minimum is 10,000 square feet and an average of 65 feet of frontage.18 We could not confirm townwide minimum dwelling size, ordinary setbacks, building height or lot coverage away from the water; ask both offices before relying on a survey or site plan.
How do septic permits work inside the Town of Plymouth?
Juneau County administers the sanitary permit process for private septic systems inside the Town of Plymouth.2 A new home, replacement home, connection to an existing septic system, bedroom addition or an addition equal to or greater than 25% of the existing area can trigger a sanitary permit.5 The process calls for a certified soil tester's report, then a licensed plumber designs the system from that report and applies to the county; county and state approvals precede issuance.2
Installed, modified or reconnected private onsite wastewater systems must remain open for county inspection, with notice to the Zoning Department on the working day before inspection, excluding weekends and holidays.19 Juneau County soils offer only 0.5% without severe limitations for a conventional septic drain field, so make the soil evaluation an early purchase contingency rather than assuming a conventional system will work.20
Can you live in an RV or tiny home in the Town of Plymouth?
The Town of Plymouth has a documented path for temporary camping: an annual camping permit requires Town Board approval, must remain with the camper during the stay and carries a $10 fee per camper after approval.6 The application asks about the parcel, camping units, sanitary facilities and trash disposal, and an applicant camping without the owner present must provide the owner's signed permission.21
That temporary-camping approval does not answer whether the Town of Plymouth permits long-term residential RV occupancy, and we could not confirm such a rule; ask the Town Clerk before treating a camper as a residence. We also could not confirm a Plymouth-specific tiny-home occupancy rule or minimum dwelling size. A tiny home used as a new dwelling may still fall within the town building permit requirement, while a manufactured home installed as a new dwelling falls under the statewide UDC.110
Building a home in the Town of Plymouth: what are the steps?
- Ask the Town Clerk about the parcel, the town building permit forms and any unconfirmed town zoning or dimensional rules before finalizing a design. The town requires the building permit before construction begins.22
- If the site will use private septic, obtain the certified soil report and have a licensed plumber prepare the design and county sanitary permit application.23 A local building permit for a new dwelling using private onsite wastewater cannot be issued until the sanitary permit has been issued.24
- Ask Juneau County whether shoreland or floodplain approval applies to the mapped parcel.25
- Obtain the town driveway permit for a new or improved driveway.26
- Submit the applicable town and UDC building materials, then arrange each required inspection with the inspector named on the permit.1127
- For a new private well, obtain a Wisconsin DNR Well Construction Notification Number before construction.8
What should you check before buying land in the Town of Plymouth?
Start with buildability, not just acreage. Juneau County soils offer only 0.5% without severe limitations for a conventional septic drain field, while 85.7% of county land has a slope of 15% or less; a gentle-looking site can still need a different wastewater design.2028 Make an acceptable soil evaluation and sanitary-permit path part of the purchase decision.2
Check county maps for shoreland and floodplain controls before placing a home, septic system, well or driveway.15 Confirm legal road access and budget for the required town driveway permit.9 For carrying costs, Juneau County's effective property tax rate is 1.5%, and the county's typical home insurance premium is $1,246 per year.2930 Finally, obtain written answers from the Town Clerk on general zoning, setbacks, tiny homes and residential RV use because those townwide rules could not be confirmed.
Watch-outs
- A town building permit does not replace the Juneau County sanitary permit or mapped shoreland and floodplain approvals.123
- Temporary camping requires annual Town Board approval and a $10 fee per camper; the available rule does not confirm long-term residential RV use.6
- Only 0.5% of Juneau County soils are rated without severe limitations for a conventional septic drain field, so complete the soil evaluation before committing to a house site.20
- A new or improved driveway needs a Town of Plymouth driveway permit, but the published material does not state its fee or design standards.9
Sources
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Rural Building Beginning Procedures for Sanitary and Building Permits (Town of Plymouth), quoted and re-checked
- Rural Building Beginning Procedures for Sanitary and Building Permits (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Rural Building Beginning Procedures for Sanitary and Building Permits (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Dwelling Contractor Qualifier (Town of Plymouth), quoted and re-checked
- Well and heat exchange notification (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Town of Plymouth Clerk (townofplymouthjc.com)
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Town of Plymouth), quoted and re-checked
- Juneau County Floodplain Zoning Ordinance (Town of Plymouth), quoted and re-checked
- General Shoreland Zoning Provisions, quoted and re-checked
- Juneau County Code, Appendix A, Sec. 3.1 — Lots not served by public sanitary sewer, quoted and re-checked
- Juneau County Code, Appendix A, Sec. 3.2 — Lots served by public sanitary sewer, quoted and re-checked
- Juneau County POWTS inspection requirements (Town of Plymouth), quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- Rural Building Beginning Procedures for Sanitary and Building Permits (Town of Plymouth), quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Juneau County Floodplain Zoning Ordinance (Town of Plymouth), quoted and re-checked
- Regulations | Town of Plymouth (Town of Plymouth), quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) - DSPS (Town of Plymouth), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Typical home insurance premium: Bolthole Index county data
Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.