On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Green County
New dwellings, additions of 100 square feet or more, open porches or decks of any size, accessory and farm structures, structural alterations, floodplain or shoreland permits, fences where required, signs, towers, wireless communication facilities, change of use, and other land use work listed in the county code.
99 square feet or less for certain nonresidential accessory or farm structures, if setback and open space requirements are met.
Some county code items may still be subject to zoning compliance even where no construction permit is required.
- Exempt 99 square feet or less for certain nonresidential accessory or farm structures, if setback and open space requirements are met.
- Exempt Some county code items may still be subject to zoning compliance even where no construction permit is required.
Required documents
- County application
- Site plan or survey where applicable
- Any required state forms
- Township approvals if applicable
- Fee
- Building code
- Wisconsin one and two family dwelling code enforcement under Wis. Stat. 101.651, with Wisconsin SPS 320 to 325 applicable statewide.
- Contractor requirements
- No county contractor licensing rule located in the reviewed pages.
§ 03
Application process
Application → plan check → issuance → inspection → final
- 01 Start with zoning review for the parcel and proposed work.
- 02 File the relevant zoning or land use permit application with the Zoning Department.
- 03 For one and two family dwellings, file the administrative building permit under county UDC administration if the town or municipality is covered by county enforcement.
- 04 Pay the fee at time of issuance.
- 05 County review may include site photos, setbacks, floodplain or shoreland review, and inspection.
- 06 Issuance timing: the code says certificate of compliance is issued within 10 days after completion if compliant; the code also says the zoning administrator shall approve, conditionally approve, or reject certified survey maps within 45 calendar days.
Source: Green County Zoning Department ↗
§ 04
Fee schedule
Green County building permit fees
Fee type
Amount
01
Permit fee formula
Residential fees are tied to structure type and size; accessory and farm structure fees are tied to square footage; other land use permits are set by the committee.
02
Reinspection fee
If work starts before permit issuance, fees are doubled; if permit is not obtained within 30 days of notification, fees are tripled.
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Contact the Zoning Department directly (direct)
Typical sequence: County may inspect walls before backfill, may inspect permitted work in progress, and may inspect for certificate of compliance after work completion.
§ 06
Frequently asked
Common questions about unincorporated Green County permits
01 Do I need a building permit in unincorporated Green County, WI? ▸
New dwellings, additions of 100 square feet or more, open porches or decks of any size, accessory and farm structures, structural alterations, floodplain or shoreland permits, fences where required, signs, towers, wireless communication facilities, change of use, and other land use work listed in the county code.
02 How much does a building permit cost in unincorporated Green County, WI? ▸
Building permit fees in unincorporated Green County, WI are set by the local building department and vary by project type and valuation. Fees are calculated as: Residential fees are tied to structure type and size; accessory and farm structure fees are tied to square footage; other land use permits are set by the committee..
03 How do I apply for a building permit in unincorporated Green County, WI? ▸
To apply for a building permit in unincorporated Green County, WI, follow these steps: 1. Start with zoning review for the parcel and proposed work. 2. File the relevant zoning or land use permit application with the Zoning Department. 3. For one and two family dwellings, file the administrative building permit under county UDC administration if the town or municipality is covered by county enforcement. 4. Pay the fee at time of issuance. 5. County review may include site photos, setbacks, floodplain or shoreland review, and inspection. 6. Issuance timing: the code says certificate of compliance is issued within 10 days after completion if compliant; the code also says the zoning administrator shall approve, conditionally approve, or reject certified survey maps within 45 calendar days.
04 What work is exempt from building permits in unincorporated Green County, WI? ▸
Not all construction work requires a permit in unincorporated Green County, WI. The following work is generally exempt: 99 square feet or less for certain nonresidential accessory or farm structures, if setback and open space requirements are met.; Some county code items may still be subject to zoning compliance even where no construction permit is required.. When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in unincorporated Green County, WI? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Green County, WI via: Contact the Zoning Department directly.
last verified April 2026
source Green County Zoning Department ↗
entry id permits/wisconsin/green/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Green County Zoning Department before applying. Jaspector is not legal advice.