What Permits Do You Need to Build a Backyard Sauna in Minnesota?
Do You Need a Permit to Build a Backyard Sauna in Minnesota?
Building Permits, Zoning & Code Requirements
Outdoor Sauna Requirements
Before installing a custom outdoor sauna on your property, it’s important to ensure all local regulations and site requirements are met. While we build your sauna to high standards, permit approval and site compliance are the responsibility of the property owner unless otherwise agreed in writing.
1. Local Permits & Zoning Approval
Most cities in Minneapolis, Saint Paul, and the surrounding Twin Cities metro require a building or zoning permit for backyard structures over a certain size — including prefabricated or custom-built saunas.
You are responsible for:
Contacting your local city or county building department
Confirming whether a building permit, zoning permit, or setback approval is required
Ensuring the sauna location meets property line setbacks, easements, and lot coverage rules
Even prefabricated or “non-permanent” structures may require permits depending on size, electrical service, and placement.
While many Minnesota jurisdictions exempt structures under 200 square feet from building permit requirements, zoning approval is still commonly required. Zoning reviews focus on proper placement, including setbacks from lot lines, avoidance of easements, and restrictions on front-yard placement.
2. Minnesota State Building Code Compliance
Our custom saunas are designed and constructed to align with the Minnesota State Building Code where applicable.
In most cases:
Outdoor saunas are classified as accessory structures, not dwellings
They are not modular homes or industrialized buildings intended for habitation
Full modular/industrialized seals or dwelling requirements typically do not apply
However, local authorities have final interpretation. You should confirm how your municipality classifies the structure.
3. Electrical Requirements
Electric sauna heaters and lighting require proper electrical service.
You are responsible for:
Hiring a licensed electrician
Completing all required electrical work prior to delivery or installation
Pulling any required electrical permits
We will provide heater specifications and electrical requirements in advance to support your electrician and inspector.
4. Site Preparation & Access
To ensure a smooth installation, please verify:
The installation area is level and accessible
Adequate clearance exists for delivery
Any required foundation, pad, or base meets local requirements
Underground utilities are marked if required
Your project manager will coordinate with you ahead of time to confirm readiness.
We’re Here to Help
While permits and approvals for outdoor saunas are the homeowner’s responsibility, we’re happy to:
Answer general questions about typical Twin Cities requirements
Provide drawings, specifications, and documentation needed for permit applications
Coordinate timing once approvals are secured
If you’re unsure where to start, we recommend contacting your local building department early in the planning process.
Indoor Sauna Requirements
Installing an indoor sauna is typically more straightforward than outdoor placement, but certain approvals and preparations are still required.
Permits & Approvals
In many Twin Cities municipalities, interior sauna installations may not require a building permit if no structural changes are made. However, permits may be required if the project involves:
Framing modifications
Electrical upgrades
Urban Sauna LLC will obtain and manage all required permits for your indoor sauna project, including coordination with local building and electrical authorities. We handle permit applications, plan submissions, and required documentation to help ensure a smooth and compliant installation process.
