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What Are You Allowed to Build at 821 E Walnut St, Green Bay City, WI, 54301?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
This property may meet the zoning requirements to build a Single-Family home up to 26,454 sq ft of zoning-counted floor area allowed By Conditional Use Permit, or possibly more by Special Permit. Additional factors may affect feasibility.
Multifamily
Home Addition
Probably Allowed
We estimate you can expand this property by up to 23,991 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
GREEN BAY CITY
Parcel ID
10102
Property Type
Single Family
Zone
OR
Year Built
1900
Lot Size
8,817 sq ft
Gross Building Area
1,417 sq ft
Gross Floor Area
2,463 sq ft
Living Area
2,463 sq ft
Basement Area
0 sq ft
Impervious Surface
2,463 sq ft
27.9%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.
What Are You Allowed to Build at 821 E Walnut St, Green Bay City, WI, 54301?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
This property may meet the zoning requirements to build a Single-Family home up to 26,454 sq ft of zoning-counted floor area allowed By Conditional Use Permit, or possibly more by Special Permit. Additional factors may affect feasibility.
Multifamily
Home Addition
Probably Allowed
We estimate you can expand this property by up to 23,991 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
GREEN BAY CITY
Parcel ID
10102
Property Type
Single Family
Zone
OR
Year Built
1900
Lot Size
8,817 sq ft
Gross Building Area
1,417 sq ft
Gross Floor Area
2,463 sq ft
Living Area
2,463 sq ft
Basement Area
0 sq ft
Impervious Surface
2,463 sq ft
27.9%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.