Redwood Falls, Minnesota, requires city building permits before most construction projects begin and administers its own zoning in Redwood County.12 The city Building Department handles building inspections and zoning compliance; septic installation requires approval from the Redwood County Environmental Office.34 RV residence on a private lot is limited to 14 days per calendar year, with a principal building and sanitary sewer and water facilities.5
At a glance
- Building permits
- City building permits required before most construction projects begin1
- Zoning
- City Unified Development Ordinance and district-specific standards26
- Septic approval
- Redwood County Environmental Office approves septic installation and designs4
- RV living
- Up to 14 days per calendar year on a lot with a principal building and sanitary sewer and water facilities5
- Residential lot area
- R-1: 10,000 square feet; R-R: 2.5 acres78
- Owner-builder
- Conditional contractor-license exemption; city building permits still required9
- Tiny homes
- State residential-code compliance required; ask city Planning & Zoning whether the proposed use is allowed1011
Who to call
Building permits
Redwood Falls Building Department / Inspections Department
City building-code administration, building plan reviews, inspections and zoning compliance
Municipal Office Building PO Box 526 333 South Washington Street Redwood Falls, MN 56283
Zoning
Redwood Falls Planning & Zoning Department
City zoning, development applications, land subdivision and variances
Septic permits
Redwood County Environmental Office
County septic installation approval, design review and onsite inspections
Redwood County Government Center 403 South Mill Street, P.O. Box 130 Redwood Falls, MN 56283
Contact details are copied from each office’s official page and were checked against it on October 12, 2026.
Off-grid gear
Going off-grid in Redwood Falls 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 Redwood Falls, MN?
Redwood Falls requires a city building permit before most construction-related projects begin, including construction, alterations and demolition covered by the city code.1 The city Building Inspections Division administers the Minnesota State Building Code and related city ordinances inside city limits.12 Electrical permits and inspections are administered separately by Minnesota.1
An owner working on the owner's property may qualify for Minnesota's residential contractor-license exemption, but the exemption does not waive Redwood Falls building permits and does not cover construction for resale or speculation.9
Who handles building inspections and zoning in Redwood Falls?
Contact the Redwood Falls Inspections Department at 507-616-7400 or [email protected] for building-project questions; the Building Official handles code administration, building plan review and site inspections.3 The same department includes the Zoning Administrator, responsible for zoning compliance and code enforcement.3
Redwood Falls Planning & Zoning reviews development, redevelopment, subdivision and variance applications.13 City building and zoning review does not replace septic approval: the Redwood County Environmental Office reviews septic designs and conducts onsite inspections.3134
Does Redwood Falls have zoning, minimum lot sizes and setbacks?
Redwood Falls has its own Unified Development Ordinance; city district standards regulate permitted uses, building height and size, and lot sizes.213 Identify the parcel's district on the city zoning map before designing a home or dividing land.13
In Redwood Falls' R-1 Single Family Residential District, minimum lot area is 10,000 square feet; in R-R Rural Residential, minimum lot area is 2.5 acres.78 R-1 principal and accessory structures together may cover no more than 50% of the lot.14 Ask Planning & Zoning for the parcel's applicable setbacks and building envelope rather than treating a district's minimum lot area as approval for a particular house.13
How do septic permits and water service work in Redwood Falls?
A septic system in Redwood Falls needs Redwood County approval before installation; the Environmental Office reviews designs and conducts onsite inspections.4 Minnesota's framework requires local construction permits for most subsurface sewage treatment systems, with the applicable local ordinance controlling additional requirements.15
We could not confirm whether a new Redwood Falls home must connect to available municipal water or sewer, or whether the city permits the proposed off-grid sanitation arrangement; ask city Planning & Zoning before committing to a septic design.13 Minnesota generally requires notification and a filing fee before water-supply well construction, subject to statutory exceptions and delegated authority.16
Can you live in an RV or tiny home in Redwood Falls?
Redwood Falls does not allow general residential use of an RV: temporary residence is limited to 14 days per calendar year on a lot with a principal building and access to sanitary sewer and water facilities.5 Seasonal residence is allowed in an approved RV park, while an onsite construction office may be occupied for security but cannot serve as a residence.5 A vacant-lot RV stay while building therefore does not fit the private-lot exception.5
Minnesota tiny-house dwellings must meet the residential code, but local zoning determines whether a tiny home or accessory dwelling is allowed on the property.1011 We could not confirm a Redwood Falls tiny-home classification or overall minimum dwelling size; ask Planning & Zoning about the proposed design and district.13
Building a home in Redwood Falls: what are the steps?
- Ask Redwood Falls Planning & Zoning to confirm the district, proposed residential use and applicable site standards before preparing the building layout.13
- Resolve sewer service with the city; if proposing septic, obtain design review and installation approval from the Redwood County Environmental Office.134
- Submit the city building-permit application well before construction; residential applications requiring plan review can take up to 10 business days.17
- Obtain separate Minnesota electrical permits and schedule city building inspections through the Inspections Department.117
For land outside city limits, consult the Redwood County guide and confirm the jurisdiction: the county directs parcels near Redwood Falls to the respective local authority.18
Watch-outs
- Redwood Falls' owner-builder exemption concerns contractor licensing and does not remove city building-permit requirements.9
- Redwood Falls requires manufactured homes to be on a site in an approved manufactured-home park or subdivision with the required utilities.19
- Construction or fill in a regulated Minnesota floodplain requires floodplain approval; ask Redwood Falls Planning & Zoning to identify the parcel's floodplain status before choosing a building site.2013
- A direct driveway connection to a Minnesota state highway requires a MnDOT access permit before construction or modification.21
Sources
- Building Department (Redwood Falls), quoted and re-checked
- Redwood Falls Code §14.01, Unified Development Ordinance (Redwood Falls), quoted and re-checked
- Redwood Falls Building Department / Inspections Department (ci.redwood-falls.mn.us)
- Redwood County Environmental Office (redwoodcounty-mn.gov)
- Redwood Falls Unified Development Ordinance (Redwood Falls), quoted and re-checked
- Planning & Zoning (Redwood Falls), quoted and re-checked
- Redwood Falls Unified Development Ordinance (Redwood Falls), quoted and re-checked
- Redwood Falls Unified Development Ordinance (Redwood Falls), quoted and re-checked
- Minnesota Residential Contractor Licensing (Redwood Falls), quoted and re-checked
- Tiny Houses and the 2020 Minnesota Residential Code (Minnesota statewide rule), quoted and re-checked
- Storage Sheds and the Minnesota State Building Code (Minnesota statewide rule), quoted and re-checked
- Building Inspections (Redwood Falls), quoted and re-checked
- Redwood Falls Planning & Zoning Department (ci.redwood-falls.mn.us)
- Redwood Falls Unified Development Ordinance (Redwood Falls), quoted and re-checked
- SSTS design (Minnesota statewide rule), quoted and re-checked
- 2025 Minnesota Statutes, section 103I.205: Well Construction (Minnesota statewide rule), quoted and re-checked
- Building Inspections (Redwood Falls), quoted and re-checked
- Environmental Office - Redwood County, MN, quoted and re-checked
- Redwood Falls Unified Development Ordinance (Redwood Falls), quoted and re-checked
- Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
- MnDOT Access Management Manual, Chapter 4 (Minnesota statewide rule), quoted and re-checked
Written October 12, 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.