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What Are You Allowed to Build at 849 Alleghany Rd, Grayslake, IL, 60030?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, 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 Right, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. 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 3,997 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property by up to 1,292 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
GRAYSLAKE
Parcel ID
0627206005
Property Type
Residential
Zone
R3B
Year Built
1993
Lot Size
9,992 sq ft
Gross Building Area
2,288 sq ft
Gross Floor Area
2,705 sq ft
Living Area
2,705 sq ft
Basement Area
0 sq ft
Impervious Surface
2,288 sq ft
22.9%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 849 Alleghany Rd, Grayslake, IL, 60030?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, 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 Right, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. 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 3,997 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property by up to 1,292 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
GRAYSLAKE
Parcel ID
0627206005
Property Type
Residential
Zone
R3B
Year Built
1993
Lot Size
9,992 sq ft
Gross Building Area
2,288 sq ft
Gross Floor Area
2,705 sq ft
Living Area
2,705 sq ft
Basement Area
0 sq ft
Impervious Surface
2,288 sq ft
22.9%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.