Do I Need a Permit to Build a Greenhouse in Wisconsin?
Greenhouse permit requirements depend on size and whether the structure has utilities. Small hobby greenhouses may be exempt.
Yes, you typically need a permit. Requirements vary by municipality. Check with your local building department for specifics.
Where to Apply
Permit requirements, fees, and processing times vary by municipality. Check the specific requirements for your location:
Browse all jurisdictions →Frequently Asked Questions
Do I need a permit for a small greenhouse?
Many municipalities exempt small greenhouses under the same size thresholds as sheds (120-200 sq ft). Larger greenhouses typically require a building permit.
Do greenhouses need heating permits?
If you install a permanent heating system, you may need a mechanical/HVAC permit. Portable space heaters typically do not require permits.
What are the setback requirements?
Greenhouses must meet the same zoning setbacks as other accessory structures in your district.
Building in multiple cities?
See permit requirements for any Wisconsin municipality instantly. Compare fees, timelines, and processes side by side across your active jurisdictions.