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What Are You Allowed to Build at 13 S 4th St, Allentown, PA, 18102?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 800 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 800 sq ft allowed By Right, 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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

Multifamily

Home Addition

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

Property facts

Streetview picture of 13 S 4th St, Allentown, PA, 18102

Zoning Jurisdiction

Allentown

Parcel ID

640730086416

Property Type

Other

Zone

N2

Year Built

1969

Lot Size

61,506 sq ft

Gross Building Area

22,400 sq ft

Gross Floor Area

17,633 sq ft

Estimated

Living Area

12,866 sq ft

Basement Area

0 sq ft

Impervious Surface

12,866 sq ft

Estimated
20.9%of lot coverage

ADU rules for Allentown, PA

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 13 S 4th St, Allentown, PA, 18102?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 800 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 800 sq ft allowed By Right, 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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

Multifamily

Home Addition

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

Property facts

Streetview picture of 13 S 4th St, Allentown, PA, 18102

Zoning Jurisdiction

Allentown

Parcel ID

640730086416

Property Type

Other

Zone

N2

Year Built

1969

Lot Size

61,506 sq ft

Gross Building Area

22,400 sq ft

Gross Floor Area

17,633 sq ft

Estimated

Living Area

12,866 sq ft

Basement Area

0 sq ft

Impervious Surface

12,866 sq ft

Estimated
20.9%of lot coverage

ADU rules for Allentown, PA

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

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