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What Are You Allowed to Build at 621 15th St, Modesto, CA, 95354?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,200 sq ft allowed By Right, or possibly more by Special Permit.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 1,541 sq ft allowed By Right, or possibly more by Special Permit.

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.

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.

Property facts

Streetview picture of 621 15th St, Modesto, CA, 95354

Zoning Jurisdiction

MODESTO

Parcel ID

106013004000

Property Type

Single Family

Zone

END

Year Built

1974

Lot Size

7,025 sq ft

Gross Building Area

3,772 sq ft

Gross Floor Area

3,081 sq ft

Estimated

Living Area

2,390 sq ft

Basement Area

0 sq ft

Impervious Surface

2,390 sq ft

Estimated
34.0%of lot coverage

ADU rules for Modesto, CA

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 621 15th St, Modesto, CA, 95354?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,200 sq ft allowed By Right, or possibly more by Special Permit.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 1,541 sq ft allowed By Right, or possibly more by Special Permit.

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.

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.

Property facts

Streetview picture of 621 15th St, Modesto, CA, 95354

Zoning Jurisdiction

MODESTO

Parcel ID

106013004000

Property Type

Single Family

Zone

END

Year Built

1974

Lot Size

7,025 sq ft

Gross Building Area

3,772 sq ft

Gross Floor Area

3,081 sq ft

Estimated

Living Area

2,390 sq ft

Basement Area

0 sq ft

Impervious Surface

2,390 sq ft

Estimated
34.0%of lot coverage

ADU rules for Modesto, CA

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

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