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What Are You Allowed to Build at 849 Alleghany Rd, Grayslake, IL, 60030?

Backyard Cottage

(Detached ADU)

Might be Allowed
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)

Might be Allowed
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

Might be Allowed
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

Streetview picture of 849 Alleghany Rd, Grayslake, IL, 60030

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

Estimated

Living Area

2,705 sq ft

Basement Area

0 sq ft

Impervious Surface

2,288 sq ft

Estimated
22.9%of lot coverage

ADU rules for Grayslake, IL

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)

Might be Allowed
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)

Might be Allowed
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

Might be Allowed
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

Streetview picture of 849 Alleghany Rd, Grayslake, IL, 60030

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

Estimated

Living Area

2,705 sq ft

Basement Area

0 sq ft

Impervious Surface

2,288 sq ft

Estimated
22.9%of lot coverage

ADU rules for Grayslake, IL

Based on public data and AI. Check with a pro. Read More

© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.