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What Are You Allowed to Build at 3400 W 15th Ave, Gary, IN, 46404?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU, 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 17,990 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.

Swimming Pool

Might be Allowed
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

Probably Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 113,355 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 95,365 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 3400 W 15th Ave, Gary, IN, 46404

Zoning Jurisdiction

GARY

Parcel ID

450807280030000004

Property Type

Discount & junior dep. stores

Zone

B1-1

Year Built

1961

Lot Size

75,569 sq ft

Gross Building Area

18,000 sq ft

Gross Floor Area

17,990 sq ft

Estimated

Living Area

17,980 sq ft

Basement Area

0 sq ft

Impervious Surface

17,980 sq ft

Estimated
23.8%of lot coverage

ADU rules for Gary, IN

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 3400 W 15th Ave, Gary, IN, 46404?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU, 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 17,990 sq ft allowed By Conditional Use Permit, or possibly more by Special Permit, but there are some special considerations.

Swimming Pool

Might be Allowed
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

Probably Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 113,355 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 95,365 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 3400 W 15th Ave, Gary, IN, 46404

Zoning Jurisdiction

GARY

Parcel ID

450807280030000004

Property Type

Discount & junior dep. stores

Zone

B1-1

Year Built

1961

Lot Size

75,569 sq ft

Gross Building Area

18,000 sq ft

Gross Floor Area

17,990 sq ft

Estimated

Living Area

17,980 sq ft

Basement Area

0 sq ft

Impervious Surface

17,980 sq ft

Estimated
23.8%of lot coverage

ADU rules for Gary, IN

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

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