Unincorporated Waseca County, Minnesota requires a county zoning permit for new construction and most remodeling, but the county is not the building-code inspection office for every residential project.1 County Planning & Zoning handles rural zoning and septic permits, and residential construction within two miles of Waseca city limits also needs a City of Waseca building permit.21
At a glance
- Building permit
- Jurisdiction varies; county zoning approval is required for rural construction1
- Zoning
- County zoning applies in every township; cities administer their own zoning34
- Septic
- County Planning & Zoning handles rural SSTS permits5
- RV living
- Private-land occupancy rule not confirmed; ask County Planning & Zoning6
- Tiny home
- Occupancy rule not confirmed; zoning district and sanitation still matter78
- Owner-builder
- State licensing exemption is available with occupancy, rental and resale conditions9
- Private well
- County permit required for covered well construction or reconstruction10
Who to call
Planning & zoning
Waseca County Planning & Zoning
Rural zoning, subdivisions, floodplain management, zoning permits and subsurface sewage treatment permits
300 N State St, Waseca, MN 56093
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Waseca County, Minnesota?
A rural Waseca County project generally starts with a county zoning permit: the county describes zoning permits as required for new construction and most remodeling, alteration and repair work.1 A zoning permit is not necessarily the only approval. Residential construction within two miles of the City of Waseca limits also requires a City of Waseca building permit, while the Minnesota State Building Code is the statewide construction standard for structures within its scope.111
County Planning & Zoning is the right first call for parcel jurisdiction and zoning approval, but do not assume it performs the building-code review.12 Work that requires a Minnesota State Building Code permit is subject to inspection and must remain accessible until approved.13 Agricultural-building treatment can differ under the statewide code, so describe the proposed use—not just the building style—when asking which approvals apply.11
Who issues permits in Waseca County, and how do you reach them?
Waseca County Planning & Zoning administers rural land-use and zoning ordinances and handles zoning, septic, subdivision, variance, rezoning and floodplain matters.12 Reach the office at (507) 835-0650, [email protected], or 300 N State St, Waseca, MN 56093.12
The county publishes online applications for zoning, septic, demolition, conditional-use, variance, address, erosion-control and minor-subdivision matters, and applicants can apply and pay through GeoPermits.14 Building-code jurisdiction needs a separate check: residential construction within two miles of Waseca city limits also goes through the City of Waseca for a building permit.1 Inside Waseca, Janesville, New Richland or Waldorf, contact the respective city for planning and zoning rather than relying on the county’s rural rules.4 Permit fees for building-code administration are set locally and may use fixed charges, project value, or both.15
Does Waseca County have zoning?
Yes. Waseca County has zoning jurisdiction in every township, while Waseca, Janesville, New Richland and Waldorf administer planning and zoning inside their city boundaries.34 The county publishes zoning maps for rural land, so identify the parcel’s district before relying on a use or dimensional standard.16
Setbacks vary by district and circumstance; examples include a 75-foot agricultural front setback, a 50-foot Urban Expansion front setback and a 35-foot Village Mixed Use front setback, with stated exceptions.17 Common maximum building heights are 35 feet in several rural districts and 70 feet in the General Industrial district, while agricultural buildings have a height exception.18 The only reviewed minimum dwelling-size rule is for accessory dwelling units: an ADU must be at least 300 square feet and generally may not exceed 40% of the principal dwelling’s living area.19 That ADU rule does not establish a universal minimum size for every house.19
How do septic permits work in Waseca County?
Waseca County Planning & Zoning handles subsurface sewage treatment permits in the county’s rural portions.5 Minnesota counties, cities and townships issue construction permits for most subsurface sewage treatment systems, while systems designed above 10,000 gallons per day require Minnesota Pollution Control Agency permitting.20 The county’s complete local permit trigger and inspection schedule could not be confirmed, so ask Planning & Zoning what design, soil evaluation, installer documentation and inspections apply to the parcel.12
Site feasibility deserves early attention: only 2.4% of mapped county soils avoid a “very limited” rating for a conventional septic drain field.21 That does not make septic impossible, but it makes a parcel-specific soil evaluation important before fixing the house site. Off-grid waste disposal is not automatically exempt; Minnesota’s primitive-dwelling rule makes owner disposal subject to local ordinances and imposes environmental safeguards where no local ordinance exists.8
Can you live in an RV or tiny home on land in Waseca County?
Waseca County’s complete rule for living in an RV on private rural land could not be confirmed, so ask County Planning & Zoning about the parcel’s district, duration, utilities and sanitation before moving an RV onto the site.12 The county does expressly prohibit new RV parks or campgrounds, and expansions of existing ones, in any floodplain district.6 Minnesota separately requires a state license for a recreational camping area accommodating five or more tents or recreational camping vehicles, subject to statutory exclusions, but that rule does not answer single-parcel occupancy.22
A complete tiny-home occupancy rule also could not be confirmed. County zoning still applies throughout the townships, and rural construction requires zoning approval.31 A tiny home sold as a new manufactured home must receive the inspection required for new manufactured homes installed for occupancy in Minnesota.23 Ask Planning & Zoning whether the proposed unit is treated as a dwelling, manufactured home, accessory dwelling unit or RV before purchase.12
Building a home in Waseca County: what are the steps?
- Confirm whether the parcel is in a township or within Waseca, Janesville, New Richland or Waldorf, because the cities administer their own planning and zoning.4
- Ask County Planning & Zoning to confirm the rural zoning district, allowed dwelling type, setbacks, floodplain or shoreland constraints and required zoning application.12
- Confirm who administers the building code for the address; residential construction within two miles of Waseca city limits also requires a City of Waseca building permit.1
- Establish septic feasibility and obtain the rural SSTS approval through County Planning & Zoning.5
- Obtain a county permit before constructing or reconstructing a covered private well.10
- Ask the road authority for access approval, because an additional driveway connection to a public highway is subject to regulation and a permit from that authority.24
What should you check before buying land in Waseca County?
Start with the rural zoning map and written confirmation that the intended home, accessory buildings and other uses fit the parcel’s district.16 If the site is in a mapped floodplain, building a house, placing fill or installing a culvert or bridge generally requires a local floodplain permit, and new RV parks or campgrounds are prohibited in county floodplain districts.256
Budget for site work only after checking soils: 2.4% of mapped soils avoid severe conventional drain-field limitations, even though 99.3% of county land has a slope of 15% or less.2126 Confirm legal road access and the responsible road authority before planning a driveway.24 A covered private well requires a Waseca County permit before construction or reconstruction.10 For carrying-cost context, the effective property-tax rate is about 1.2% and the median annual property-tax bill is $2,537.2728
Watch-outs
- A county zoning permit does not settle building-code jurisdiction; residential work within two miles of Waseca city limits also requires a City of Waseca building permit.1
- Only 2.4% of mapped soils avoid severe limits for a conventional septic drain field, so investigate septic feasibility before choosing a house site.21
- Private-land RV occupancy and a complete tiny-home occupancy rule could not be confirmed; ask Waseca County Planning & Zoning about the exact parcel and proposed use.12
Sources
- Waseca County Planning & Zoning - Zoning (2026 county census)
- Planning & Zoning (2026 county census)
- Zoning, quoted and re-checked
- Planning & Zoning, quoted and re-checked
- Planning & Zoning, quoted and re-checked
- Ordinance 160 / Unified Development Code, quoted and re-checked
- Waseca County Planning & Zoning - Zoning (2026 county census)
- Minnesota Administrative Rules, part 7080.2450 Maintenance (Minnesota statewide rule), quoted and re-checked
- Sec. 326B.805 MN Statutes (Minnesota statewide rule), quoted and re-checked
- Water Supply Well Ordinance for the County of Waseca, quoted and re-checked
- 2025 Minnesota Statutes, section 326B.121 (Minnesota statewide rule), quoted and re-checked
- Waseca County Planning & Zoning (wasecacounty.gov)
- 1300.0210 INSPECTIONS (Minnesota statewide rule), quoted and re-checked
- Permits and Forms, quoted and re-checked
- Minnesota State Building Code Adoption Guide (Minnesota statewide rule), quoted and re-checked
- Maps, quoted and re-checked
- Board of Adjustment Agenda and UDC Extract, quoted and re-checked
- Board of Adjustment Agenda and UDC Extract, quoted and re-checked
- Ordinance 160 / Unified Development Code, quoted and re-checked
- SSTS design (Minnesota statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- 2025 Minnesota Statutes, Chapter 327 (Minnesota statewide rule), quoted and re-checked
- Manufactured home information (Minnesota statewide rule), quoted and re-checked
- Minnesota Statutes, section 160.18: Access to roads; approaches (Minnesota statewide rule), quoted and re-checked
- Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 27, 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.